Στην βιολογία, το περιβάλλον μπορεί να καθοριστεί σαν ενα σύνολο κλιματικών, βιοτικών, κοινωνικών και εδαφικών παραγόντων που δρουν σε έναν οργανισμό και καθορίζουν την ανάπτυξη και την επιβίωση του. Έτσι, περιλαμβάνει οτιδήποτε μπορεί να επηρεάσει άμεσα τον μεταβολισμό ή τη συμπεριφορά των ζωντανών οργανισμών ή ειδών, όπως το φως, ο αέρας, το νερό, το έδαφος και άλλοι παράγοντες. Δείτε επίσης το άρθρο για το φυσικό περιβάλλον και τη φυσική επιλογή.
Στην αρχιτεκτονική, την εργονομία και την ασφάλεια στην εργασία, περιβάλλον είναι το σύνολο των χαρακτηριστικών ενός δωματίου ή κτιρίου που επηρεάζουν την ποιότητα ζωής και την αποδοτικότητα, περιλαμβανομένων των διαστάσεων και της διαρρύθμισης των χώρων διαβίωσης και της επίπλωσης, του φωτισμού, του αερισμού, της θερμοκρασίας, του θορύβου κλπ. Επίσης μπορεί να αναφέρεται στο σύνολο των δομικών κατασκευών. Δείτε επίσης το άρθρο για το δομημένο περιβάλλον.
Στην ψυχολογία, περιβαλλοντισμός είναι η θεωρία ότι το περιβάλλον (με τη γενική και κοινωνική έννοια) παίζει μεγαλύτερο ρόλο από την κληρονομικότητα καθορίζοντας την ανάπτυξη ενός ατόμου. Συγκεκριμένα, το περιβάλλον είναι ένας σημαντικός παράγοντας πολλών ψυχολογικών θεωριών.
Στην τέχνη, το περιβάλλον αποτελεί κινητήριο μοχλό και μούσα εμπνέοντας τους ζωγράφους ή τους ποιητές. Σε όλες τις μορφές της Τέχνης αποτελεί έμπνευση και οι Καλές Τέχνες φανερώνουν την επιρροή οπού άσκησε σε όλους τους καλλιτέχνες με όποιο είδος Τέχνης κι αν ασχολούνται. Ο άνθρωπος μέσα στο περιβάλλον δημιουργεί Μουσική, Ζωγραφική, Ποίηση, Γλυπτική, χορό, τραγούδι, θέατρο, αλλά και όλες οι μορφές τέχνης έχουν άμεση έμπνευση από το περιβάλλον.

Κυριακή 2 Ιουνίου 2019

Supportive and Palliative Care

Multimorbidity in older adults living with and beyond cancer
Purpose of review The current review draws attention to the need for longer term management of multiple conditions in older adults with cancer. Recent findings Older people living with and beyond cancer are more likely than younger people to have higher prevalence of multimorbidity leading to an overall increase in illness and treatment burdens, limiting health-related quality of life (QoL), and capacity to self-manage. Older age presents a higher risk of cancer treatment side-effects and development or progression of other conditions, leading to worsening health, long-lasting functional problems, and social isolation. Although many prioritize functional independence and continuance of valued activities over survival, older people living with multimorbidity are more likely to experience poor physical functioning during and beyond cancer treatment. Summary Cancer treatment decisions and survivorship plans should be developed in the context of other conditions and in line with the individual's priorities for continued QoL. More research is needed to guide service development and clinical practice in this important area. Correspondence to Dr Teresa Corbett, School of Health Sciences, University of Southampton, Building 67 Room 3031, Highfield, Southampton SO17 1BJ, UK. Tel: +44 2380598292; e-mail: t.k.corbett@soton.ac.uk Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Caring for the informal cancer caregiver
Purpose of review Informal cancer caregivers play a vital role in the physical, functional, and emotional well being of cancer patients. However, the majority of informal caregivers are not prepared for their caregiving role. We reviewed and synthesized the recent literature (last 18 months) and focused on research in the following understudied areas: technology-driven interventions for informal caregivers; informal caregivers of older adults with cancer; interrelationship between informal caregiver and dyadic outcomes; and research priorities and guidelines to improve informal caregiver support. Recent findings Studies focused on technology-driven informal caregiver interventions, with evidence of good feasibility and acceptability with benefits for burden and quality of life (QOL). Studies also focused on QOL for caregivers of older adults with cancer. Finally, research priorities and clinical guidelines were established through Delphi survey studies. Summary Despite the substantial evidence on informal cancer caregiving, more research is needed to further characterize caregivers at high risk for burden, explicate interrelationships between caregiver/patient outcomes, and test innovative and scalable interventions. Studies are also needed to understand the specific needs of informal caregivers in cancer surgery, an understudied treatment population. Correspondence to Virginia Sun, PhD, RN, Associate Professor, Division of Nursing Research and Education, Department of Population Sciences, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA. Tel: +1 626/218 3122; e-mail: vsun@coh.org Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Complexity when living with cancer
No abstract available

Ketamine and lidocaine infusions decrease opioid consumption during vaso-occlusive crisis in adolescents with sickle cell disease
Purpose of review Recurrent exposure to opioids can lead to development of opioid tolerance and opioid-induced hyperalgesia through activation of N-methyl-D-aspartate receptors. N-methyl-D-aspartate receptor antagonists ketamine and lidocaine can modulate development of opioid tolerance and OIH. This study evaluated the utility of ketamine and/or lidocaine in decreasing opioid consumption during acute pain episodes in adolescents with sickle cell disease. There has been an increased effort to promote opioid-sparing pain relieving methods given the ongoing opioid epidemic. Recent findings There have been six studies published over the past decade that highlight the ability of ketamine to reduce opioid consumption in the management of sickle cell disease-related pain, primarily in adult patients. There has been one study (2015) that demonstrated a similar benefit with lidocaine, however this was also in adult patients. Summary We retrospectively evaluated treatment with ketamine and/or lidocaine infusions in adolescents hospitalized for vaso-occlusive crisis (VOC). Patients served as self-controls using a comparison with a previous control admission for VOC. The use of ketamine and/or lidocaine as adjuncts to opioids resulted in lower daily opioid consumption in three of four patients. Our study suggests that ketamine and/or lidocaine infusions may be useful adjuncts in reducing opioid exposure during VOC pain. Correspondence to Doralina L. Anghelescu, MD, Department of Pediatric Medicine, Division of Anesthesiology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 130, Memphis, TN 38105, USA. Tel: +1 901 595 4032; fax: +1 901 595 4061; e-mail: doralina.anghelescu@stjude.org Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Interdisciplinary management of chronic breathlessness
Purpose of review Breathlessness is a common yet complex symptom of advanced disease. Effective management will most likely draw upon the skills of multiple disciplines and professions. This review considers recent advances in the management of chronic breathlessness with regards to interdisciplinary working. Recent findings There are growing data on interventions for chronic breathlessness that incorporate psychosocial mechanisms of action, for example, active mind–body treatments; and holistic breathlessness services that exemplify interprofessional working with professionals sharing skills and practice for user benefit. Patients value the personalized, empathetic and understanding tenor of care provided by breathlessness services, above the profession that delivers any intervention. Workforce training, decision support tools and self-management interventions may provide methods to scale-up these services and improve reach, though testing around the clinical effects of these approaches is required. Summary Chronic breathlessness provides an ideal context within which to realize the benefits of interdisciplinary working. Holistic breathlessness services can commit to a comprehensive approach to initial assessment, as they can subsequently deliver a wide range of interventions suited to needs as they are identified. Correspondence to Dr Matthew Maddocks, Cicely Saunders Institute of Palliative Care, Policy and Rehabilitation, King's College London, Bessemer road, London SE5 9PJ, UK. Tel: +44 202 7848 5252; e-mail: matthew.maddocks@kcl.ac.uk Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Multidimensional measurement of breathlessness: recent advances
Purpose of review Breathlessness is a multidimensional sensation for which a range of instruments exists for children, youth and adults, capable or unable to self-report distress with breathing. This review presents developments and applications of multidimensional assessments of breathlessness. Recent findings Excluding unidimensional measures and instruments assessing the impact of breathlessness, at least eight psychometrically robust instruments exist, which comprehensively assess one or more specific domains of the sensation of breathlessness (intensity, sensory quality, affective distress). These instruments have evolved from modest beginnings (describing breathlessness in various patient cohorts) to a growing use as primary or secondary outcomes in observational, clinical, and experimental trials exploring breathlessness mechanisms and intervention effects. For adults and children unable to consciously communicate breathing discomfort, instruments include combinations of physiological and behavioural markers of distress. Nonverbal (graphic scales) have potential use beyond paediatric applications. Summary Traditionally, breathlessness has been considered as a 'black box' with unidimensional measures reflecting box size (intensity, unpleasantness). Multidimensional instruments reveal the composition of the black box of breathlessness allowing detailed descriptions of an individual's breathlessness experience, quantification of sensory qualities, affective distress, and emotional responses with the potential to capture change over time and treatment effects in each dimension. Correspondence to Dr Marie T. Williams, Alliance for Research in Exercise, Nutrition and Activity (ARENA), School of Health Sciences, University of South Australia, North Terrace, Adelaide, SA 5000, South Australia, Australia. Tel: +61 8 8302 1153; fax: +61 8 830 22853; e-mail: Marie.williams@unisa.edu.au Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Supplemental oxygen for the management of dyspnea in interstitial lung disease
Purpose of review This article presents a summary of the evidence relating to supplemental oxygen use for the management of dyspnea in patients with interstitial lung disease (ILD). Recent findings In contrast to the majority of the available literature, recent findings suggest that supplemental oxygen can significantly reduce exertional dyspnea in ILD. ILD patients' need for supplemental oxygen often surpasses the levels that the most commonly used oxygen delivery systems provide. More effective delivery of supplemental oxygen has the potential for greater relief of dyspnea. There is also evidence suggesting that indications for supplemental oxygen may differ in ILD compared with other chronic lung diseases. Summary Large clinical trials are needed to determine if the reductions in dyspnea with supplemental oxygen observed in the laboratory setting can translate into meaningful benefits in everyday life for patients with ILD. More effective and practical oxygen delivery systems are needed. Future guidelines should consider including recommendations addressing the potential role of supplemental oxygen for mildly hypoxemic patients with ILD as well as recommendations specific to supplemental oxygen use for exercise training in ILD. Correspondence to Michele R. Schaeffer, PhD, Centre for Heart Lung Innovation, Providence Healthcare Research Institute, The University of British Columbia, St. Paul's Hospital, 166-1081 Burrard Street, Vancouver, BC V6Z 1Y6, Canada. Tel: +1 604 806 8835; e-mail: michele.schaeffer@hli.ubc.ca Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Treating advanced penile cancer: where do we stand in 2019?
Purpose of review Penile squamous cell carcinoma (PSCC) remains a challenging malignancy to treat and there is an urgent need of significant improvements at all levels of medical care. In the current review, we summarized the significant obstacles encountered during management of PSCC and discussed the clinical relevance of novel findings and their potential to address these obstacles. Recent findings The recent genetic and immunological advances suggest that patients with PSCC can benefit from available targeted therapy and immunotherapy options. Moreover, evidence has accumulated over time suggesting that majority of the patients diagnosed with PSCC suffer from psychosocial problems and impaired rehabilitation. Summary Effective prevention strategies against PSCC are urgently needed especially in developing countries given the limited therapeutic options. About a quarter of patients with metastatic PSCC appear to benefit from available targeted therapies and about half of the patients can be a suitable candidate for immune checkpoint blockade as half of the PSCC cases exhibit PD-L1 expression. Moreover, increased public awareness, healthcare provider education and social support programs may help patients suffering from PSCC coping with the psychosocial burdens of the disease. Correspondence to Philippe E. Spiess, MD, MS, FRCS(C), FACS, Senior Member, Department of GU Oncology, Senior Member, Department of Tumor Biology, Department of Genitourinary Oncology, Assistant Chief of Surgical Services, Moffitt Cancer Center, Professor, Department of Urology, University of South Florida, FL 33612, USA. Tel: +1 813 745 2484; fax: +1 813 745 8494; e-mail: philippe.spiess@moffitt.org Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Cytoreductive nephrectomy in metastatic kidney cancer: what do we do now?
Purpose of review Metastatic renal cell carcinoma (mRCC) has traditionally been treated with a combination of targeted systemic therapy and cytoreductive nephrectomy. This approach has recently become a topic of debate, because of new randomized data suggesting a lack of survival benefit for cytoreductive nephrectomy. We review the literature relevant to cytoreductive nephrectomy in the modern era of targeted and immune systemic therapy, and discuss the ongoing role of surgery for treatment of patients with mRCC. Recent findings Randomized trials in the cytokine era of systemic therapy for mRCC demonstrated a survival benefit to cytoreductive nephrectomy, which led to its widespread adoption. There is overwhelming support in favor of cytoreductive nephrectomy from large studies using retrospective data in the targeted therapy era. A recent randomized control trial (CARMENA) failed to show superiority of cytoreductive nephrectomy in combination with sunitinib, versus sunitinib alone with respect to overall survival. The trial had major limitations including selection of many poor-risk patients, which we know do not benefit from surgery. The results of CARMENA should lead to the abandonment of cytoreductive nephrectomy in poor-risk and many intermediate-risk patients with mRCC. However, there is a knowledge gap with respect to the role of cytoreductive nephrectomy in patients with good risk disease, and we argue that these patients should be strongly considered for cytoreductive nephrectomy. Summary Cytoreductive nephrectomy continues to play an important role in the multidisciplinary management of mRCC; however, diligent patient selection is crucial, as only patients with good risk features are likely to derive benefit from surgery. Correspondence to Ricardo A. Rendon, Department of Urology, Dalhousie University and Queen Elizabeth II Health Sciences Centre, Room 210, 5-South, Victoria Building, 1276 South Park St, Halifax, NS, Canada B3H 2Y9. Tel: +1 902 473 6604; fax: +1 902 492 2437; e-mail: rrendon@dal.ca Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Treating the primary in metastatic prostate cancer: where do we stand?
Purpose of review Traditionally, local treatment was reserved for palliative control of symptoms in men with metastatic prostate cancer. In the past few years there have been many advances in the systemic options available. The aim of this review is to explore the evidence in support of treating the primary tumor despite the presence of metastatic disease. Recent findings There is a wealth of retrospective studies demonstrating advantages of local treatment [radical prostatectomy or radiation therapy (RT)] in metastatic disease. As these studies are prone to bias, treatment of the primary in the metastatic setting has not been adopted. However, two recent prospective randomized trials (HORRAD and STAMPEDE) have addressed the role of RT to the prostate in metastatic disease. The STAMPEDE sub-group analysis of low-volume metastatic disease demonstrated a survival advantage in favor of the RT arm (hazard ratio 0.68; 95% CI 0.52–0.90). The HORRAD trial showed a similar but nonsignificant trend towards RT (hazard ratio 0.68; 95% CI 0.42–1.10). As a result, the 2019 European Association of Urology and National Comprehensive Cancer Network guidelines now include RT to the prostate as an option in the setting of low-volume metastatic disease. Summary Although systemic treatment remains standard of care for men with metastatic prostate cancer, there is recent compelling evidence from two prospective randomized trials supporting treatment of the prostate in oligometastatic disease. Correspondence to Robert J. Hamilton, MD, MPH, FRCSC, Staff Urologist, Associate Professor, Division of Urology, Department of Surgery, Princess Margaret Cancer Centre, 600 University Avenue, Toronto, ON, Canada M5G 1X5. Tel: +1 416 946 2909; fax: +1 416 946 6590; e-mail: rob.hamilton@uhn.ca Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Alexandros Sfakianakis
Anapafseos 5 . Agios Nikolaos
Crete.Greece.72100
2841026182
6948891480

Organ Transplantation

Updates on antiviral drugs for cytomegalovirus prevention and treatment
Purpose of review Cytomegalovirus (CMV) is the most common infection after organ transplant. In addition to causing a viral syndrome and infection, it also increases the risk for complications in the organ transplant, along with higher overall morbidity and mortality. Prevention and ideal treatment of CMV is paramount for optimal outcomes, both for individuals as well as for transplant programs. New guidelines and novel therapies are changing the way we manage disease. Recent findings Several new antiviral agents have emerged in recent times, including letermovir, maribavir, and brincidofovir, enhancing our ability to prevent and treat CMV. Recent data on novel agents will be reviewed, with an emphasis on recent guidelines and best practices. Summary Optimal treatment, influenced by recent advances in the field, including management of resistant virus, results in better outcomes with this significant and virulent virus. Correspondence to Camille N. Kotton, Transplant and Immunocompromised Host Infectious Diseases, Infectious Diseases Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Cox 5th floor, Boston, MA 02114, USA. Tel: +1 617 724 0082 (Karen Manning, Administrative Assistant); fax: +1 617 726 7653; e-mail: ckotton@partners.org Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

The past, present, and future of costimulation blockade in organ transplantation
Purpose of review Manipulating costimulatory signals has been shown to alter T cell responses and prolong graft survival in solid organ transplantation. Our understanding of and ability to target various costimulation pathways continues to evolve. Recent findings Since the approval of belatacept in kidney transplantation, many additional biologics have been developed targeting clinically relevant costimulation signaling axes including CD40-CD40L, inducible costimulator-inducible costimulator ligand (ICOS-ICOSL), and OX40-OX40L. Currently, the effects of costimulation blockade on posttransplant humoral responses, tolerance induction, and xenotransplantation are under active investigation. Here, we will discuss these pathways as well as preclinical and clinical outcomes of biologics targeting these pathways in organ transplantation. Summary Targeting costimultion is a promising approach for not only controlling T cell but also B cell responses. Consequently, costimulation blockade shows considerable potential for improving outcomes in antibody-mediated rejection and xenotransplantation. Correspondence to Stuart J. Knechtle, MD, 330 Trent Drive, DUMC Box 3512, Durham, NC 27710, USA. Tel: +1 919 613 9687; fax: +1 919 684 8716; e-mail: stuart.knechtle@dm.duke.edu Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Nontuberculous mycobacteria in solid organ transplant
Purpose of review Nontuberculous mycobacteria (NTM) are emerging pathogens of concern especially in solid organ transplant candidates and recipients. This review aims to address diagnostic challenges, new and emerging treatment options, and infection prevention. Recent findings The incidence of NTM infections in transplant candidates and recipients is rising. The infection prevalence of these environmental pathogens varies geographically by species with a coastal predominance. Although existing guidelines from the American Thoracic Society, Infectious Diseases Society of America, and British Thoracic Society provide recommendations for diagnosis and management, they do not fully address the subtle nuances and challenges faced in managing infections in immunocompromised transplant recipients. Evolving data on new therapeutic agents and their use in combination therapy will help individualize treatment regimens while limiting adverse effects and improving compliance. Use of combination β-lactams, avibactam, tedizolid, clofazimine, bedaquiline, liposomal amikacin, and ciprofloxacin for commonly isolated species such as Mycobacterium abscessus and Mycobacterium avium complex have proven effective. Summary Further studies are needed to determine the incidence of NTM infection in a prospective, multicentric manner and evaluate the most promising synergistic treatment combinations in transplant recipients. Correspondence to Shweta Anjan, MD, 1120 NW 14th Street Suite 863, Miami, FL 33136, USA. Tel: +1305 243 4598; fax: +1305 243 4037; e-mail: sxa835@med.miami.edu Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

The future of HIV Organ Policy Equity Act is now: the state of HIV positive to HIV+ kidney transplantation in the United States
Purpose of review We report the current state of HIV-to-HIV kidney transplantation in the United States and remaining challenges in implementing this practice nationally. Recent findings The HIV Organ Policy Equity (HOPE) Act, which was the first step in unlocking the potential of HIV+ organ donors, mandates clinical research on HIV positive to HIV+ transplantation. As of March 2019, there have been 57 HOPE donors, including both true and false-positive HOPE donors resulting in more than 120 transplants. Summary The HOPE Act, signed in 2013, reversed the federal ban on the transplantation of organs from HIV D+ into HIV R+ . Ongoing national studies are exploring the safety, feasibility, and efficacy of both kidney and liver transplantation in this population. If successfully and fully implemented, HIV positive to HIV+ transplantation could attenuate the organ shortage for everyone waiting, resulting in a far-reaching public health impact. Correspondence to Christine M. Durand, MD, Medicine and Oncology, Johns Hopkins University School of Medicine, 725 North Wolfe Street/PCTB Room 228, Baltimore, MD 21205, USA. E-mail: christinedurand@jhmi.edu Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

The true risk of living kidney donation
Purpose of review The safety of living donor nephrectomy is essential to the continued success, growth, and sustainability of the clinical practice of living donor kidney transplantation. This review summarizes recent advances in our understanding of the perioperative and long-term risks faced by living kidney donors. Recent findings Although adverse perioperative complications are extremely rare, donors particularly men, Black, or obese, frequently experience minor complications that result in delayed return to normal duties at home and work. Similarly, although long-term complications such as end-stage renal disease (ESRD) are rare, recent studies suggest a relative increase in risk of ESRD that is attributable to donation. Several risk calculators have been developed to help donors and their care providers quantify the baseline and postdonation risk of ESRD based on demographic and health characteristics. Thresholds of risk may help define what is an acceptable level of risk to the donor and the transplant center. Summary Individualized risk calculators now allow care providers and potential donors to objectively and transparently participate in shared decision-making about the safety of living kidney donation. Correspondence to Macey Henderson, JD, PhD, Department of Surgery, Division of Transplantation, Johns Hopkins School of Medicine, 2000 E Monument Street Baltimore, MD 21205, USA. Tel: +1 443 287 6649; fax: +1 410 630 7217; e-mail: macey@jhmi.edu Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Novel therapeutic strategies for renal graft preservation and their potential impact on the future of clinical transplantation
Purpose of review The current review aims to examine recent evidence about improvements, therapeutics and novel approaches for renal graft preservation along with presenting a pragmatic outlook on their potential for clinical translation. Recent findings Modifying established cold preservation methods (4 °C) with oxygenation, gene therapies and gasotransmitters such as hydrogen sulfide has been shown to improve renal graft outcomes with minimum modifications to current protocols. These strategies have also shown promise in the context of normothermic preservation (34–37 °C), which circumvents the damage caused by cold preservation. Although normothermic machine perfusion (NMP) is being evaluated in clinical trials, it is limited by high cost, the use of blood and the lack of standardized protocols. Recent studies confirmed that preservation at subnormothermic temperatures (∼20 °C) is effective with approved preservation solutions and, in conjunction with exogenous hydrogen sulfide therapy, this approach may expedite a static preservation alternative to NMP. Summary Progress has been made in investigating improvements and alternatives to cold preservation. Promising therapeutic strategies have also been studied in the context of cold, subnormothermic and normothermic preservation. Further research is needed to optimize clinical renal graft preservation. Correspondence to Alp Sener, MD, PhD, FRCSC, University Hospital, C4-208, London Health Sciences Centre, 339 Windermere Road, London, ON, Canada N6A 5A5. Tel: +1 519 685 8500x33352; e-mail: alp.sener@lhsc.on.ca Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Community-acquired respiratory viruses in solid organ transplant
Purpose of review Respiratory viruses are common in solid organ transplant (SOT) recipients and recognized as a significant cause of mortality and morbidity. This review examines the literature on influenza and noninfluenza viruses in the SOT recipient. Recent findings Advances in immunosuppression and antimicrobial prophylaxis have led to improved patient and graft survival, yet respiratory viruses continue to be a common cause of disease in this population. Influenza viruses have received top priority regarding prevention and treatment, whereas advances in molecular diagnostic tests detecting an array of other respiratory viruses have expanded our knowledge about the epidemiology and impact of these viruses in both the general population and SOT patients. Effective treatment and prevention for noninfluenza respiratory viruses are only emerging. Summary Respiratory viruses can contribute to a wide array of symptoms in SOT, particularly in lung transplant recipients. The clinical manifestations, diagnosis, and treatment options for influenza and noninfluenza viruses in SOT patients are reviewed. PCR and related molecular techniques represent the most sensitive diagnostic modalities for detection of respiratory viruses. Early therapy is associated with improved outcomes. Newer classes of antivirals and antibodies are under continuous development for many of these community acquired respiratory viruses. Correspondence to Michael G. Ison, MD, MS, Northwestern University Feinberg School of Medicine, 645 N Michigan Avenue Suite 900, Chicago, IL 60611, USA. Tel: +1 312 695 4186; fax: +1 312 695 5088; e-mail: mgison@northwestern.edu Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Noninvasive biomarkers in monitoring kidney allograft health
Purpose of review A key aspect of posttransplant management is to identify and treat graft injury before it becomes irreversible. The gold-standard for detection is histology, but biopsy is uncomfortable for the patient and carries a risk of complications. Detection of changes at a molecular level may preempt histological injury, and thereby identify injury earlier. Recent findings Indicators of immune system activation, such as candidate chemokines chemokine (C-X-C motif) ligand (CXCL)9 and CXCL10, and by-products of neutrophil activity, have been related to acute rejection and early allograft function. Transcriptomic studies of multiple-gene panels have identified candidate combinations that have proven very promising in risk-stratification and prediction of acute rejection, as well as diagnosis of both T-cell-mediated and antibody-mediated rejection. Serum and urine cell-free DNA is also a promising area of investigation, particularly in antibody-mediated rejection. Summary Noninvasive, rapid, and accurate tests for risk-prediction and diagnosis in renal transplant allografts are urgently required. The ideal candidate is one that can be measured in either urine or blood, is cheap, and is both sensitive and specific for the condition of interest. Numerous strategies have been proposed, with varying degrees of clinical and preclinical success. A few that meet the essential criteria have been evaluated; a few have made it as far as clinical testing. Correspondence to John M. O'Callaghan, MBBS, BSc, DPhil, FRCS, Oxford Transplant Centre, Oxford University Hospitals NHS Foundation Trust, Churchill Hospital, Old Road, Oxford OX3 7LE, UK. Tel: +4401865227131; e-mail: john.ocallaghan@ouh.nhs.uk Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Antimicrobial stewardship in transplant patients
Purpose of review To provide an update on the current landscape of antimicrobial stewardship in solid organ transplant (SOT) recipients. Recent findings Constructing personalized antimicrobial prescribing approaches to avoid untoward consequences of antimicrobials while improving outcomes is an emerging and critical aspect of transplant medicine. Stewardship activities encompassing the specialized interests of transplant patients and programs are evolving. New literature evaluating strategies to optimize antimicrobial agent selection, dosing, and duration have been published. Additionally, consensus guidance for certain infectious clinical syndromes is available and should inform institutional clinical practice guidelines. Novel metrics for stewardship-related outcomes in transplantation are desperately needed. Though exciting new molecular diagnostic technologies will likely be pivotal in the care of immunocompromised patients, optimal clinical adaptation and appropriate integration remains unclear. Important studies understanding the behaviors influencing antimicrobial prescribing in organizational transplant cultures are needed to optimize interventions. Summary Consequences of antimicrobial use, such as Clostridiodes difficile and infections with multidrug-resistant organisms disproportionately affect SOT recipients and are associated with poor allograft and patient outcomes. Application of ASP interventions tailored to SOT recipients is recommended though further studies are needed to provide guidance for best practice. Correspondence to Jonathan Hand, MD, 1514 Jefferson Highway, New Orleans, LA 70121, USA. Tel: +1 504 842 1191; fax: +1 504 842 5254; e-mail: Jonathan.Hand@ochsner.org Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

Caring for the patient with a failing allograft: challenges and opportunities
Purpose of review The population of kidney transplant recipients with advanced chronic kidney disease is growing but their outcomes are poor and care is not standardized. There has been wide variety of research in recent years on different aspects of care in failing allografts, and these research findings may help the providers in optimizing care. The purpose of the review is to outline the challenges and opportunities in management of failing allograft, and provide tools for improvement. Recent findings This review summarizes the recent research in field of failing allograft including outcomes, immunosuppression, risk factor management, multidisciplinary CKD care, dialysis initiation, nephrectomy and re-transplantation. Summary Kidney allograft failure is a period of higher risk of mortality compared with other transition periods for patients with ESRD. Risk mitigation is a complex challenge for patients and their care teams. In addition to summarizing the recent literature, we propose a checklist approach to the various issues, medical, surgical, psychological and nutritional as patients approach kidney transplant failure while they consider initiation of dialysis and possible repeat transplantation. Once standard algorithms are instituted, studies can be conducted to identify those high-value interventions that actually reduce morbidity and mortality risk during this transition period. Correspondence to Nikhil Agrawal, Beth Israel Deaconess Medical Center, Boston, MA, 02215, USA. Tel: +617 632 9700; e-mail: nagrawa2@bidmc.harvard.edu Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.



ALEXANDROS SFAKIANAKIS ANAPAFSEOS 5 AGIOS NIKOLAOS CRETE 72100 GREECE +306932607174 +302841026182

Anaesthesiology

Effects of goal-directed crystalloid vs. colloid fluid therapy on microcirculation during free flap surgery: A prospective randomised clinical trial
BACKGROUND Macro, and microcirculatory effects of crystalloids and colloids are difficult to compare, because interventions to achieve haemodynamic stability seldom follow similar criteria. OBJECTIVES Our aim was to compare the effects of crystalloids and colloids on the microcirculation during free flap surgery when management was guided by detailed haemodynamic assessment. DESIGN A prospective randomised, controlled clinical trial. SETTINGS The investigation was performed at the University of Szeged, Hungary. PATIENTS Patients undergoing maxillofacial tumour resection and free flap reconstruction were randomised into groups treated with either intra-operative crystalloid (Ringerfundin, n = 15) or colloid (6% hydroxyethyl starch, HES, n = 15) solutions. INTERVENTIONS Macrohaemodynamics were monitored by a noncalibrated device (PulsioFlex-PULSION). Central venous oxygen saturation, venous-to-arterial PCO2-gap, lactate levels and urine output were measured hourly. Maintenance fluid was Ringerfundin (1 ml kg−1 h−1), and a multimodal, individualised, approach-based algorithm was applied to guide haemodynamic support. Hypovolaemia was treated with Ringerfundin or HES fluid boluses, respectively. The microcirculatory effects were assessed by laser-Doppler flowmetry (PeriFlux 5000 LDPM), with the probe placed on the flap and on a control area. Measurements were performed after the flap was prepared, then 1 and 12 h later. MAIN OUTCOME MEASURES The primary end-point was microcirculatory perfusion as determined by laser-Doppler flowmetry. RESULTS There was no difference between the groups regarding patient characteristics. Both groups remained haemodynamically stable throughout due to the use of approximately a 1.5 times higher total fluid volume in the Ringerfundin group than in the HES group: mean ± SD: 2581 ± 986 and 1803 ± 497) ml, respectively, (P = 0.011). There was no significant difference in the microcirculatory blood flow between the groups. CONCLUSION Our results showed that when fluid management was guided by detailed haemodynamic assessment, more crystalloid than colloid was needed to maintain haemodynamic stability, but there was no difference between the effects of crystalloids and colloids on the microcirculation. TRIAL REGISTRATION ClinicalTrials.gov (NCT03288051). Correspondence to Ildikó László, Department of Anaesthesiology and Intensive Therapy, University of Szeged, 6 Semmelweis St., Szeged 6725, Hungary; E-mail: laszlo.ildiko@med.u-szeged.hu © 2019 European Society of Anaesthesiology

Allogeneic red cell transfusion and its influence on relevant humoral and cellular immunological parameters: A prospective observational trial
BACKGROUND It is assumed that transfusion of allogeneic red cells is associated with increased peri-operative mortality and morbidity. Also assumed is the theory of transfusion-related immunomodulation. OBJECTIVE The aim of this study was to investigate the hypothesis that red cell transfusion specifically leads to an immunological response in surgical patients. DESIGN Prospective observational study. SETTING Departments of Orthopedic Surgery and Anaesthesia, University Hospital, Thailand. PATIENTS Low-risk, noncancer patients, aged 18 to 75 years undergoing elective major spine surgery, with and without red cell transfusion therapy. INTERVENTIONS Blood specimens were withdrawn four times (prior to surgery and on days 1, 3 and 5). MAIN OUTCOME MEASURES Assessment of immunocompetent cells and cytokines in transfused and nontransfused patients using flow cytometry and multiplex ELISA. RESULTS From a total of 78 patients, 61 met the requirements and were analysed in three groups: 19 with no transfusion and 26 and 16 transfused intra-operatively and on day 1 or 2, respectively. No patient experienced peri-operative haemorrhage. Postoperative infection or thrombosis occurred in 5.5% of nontransfused patients and 16.6% of transfused patients; the difference was not significant. There was no significant immunomodulatory effect of red cell transfusion: of 45 immunological parameters, only five little-relevant cytokines were significantly affected, although slightly and nonspecifically. CONCLUSION Our data indicate that red cell transfusion alone does not create an immunological response in otherwise healthy surgical patients. Our findings do not generally contradict the transfusion-related immunomodulation phenomenon, which has, however, primarily been observed in patients with an already weakened or procedure-deteriorated immune system, such as from malignant disease, significant comorbidity, extensive abdominal/thoracic surgery and cardiopulmonary bypass. TRIAL REGISTRATION The study was registered on 15 May 2014, before enrolment of the first patient, at www.ClinicalTrials.gov, NCT02140216. Correspondence to Benno von Bormann, Department of Anesthesiology, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkok 10700, Thailand Tel: +66 918825723/+66 24197990; e-mail: bvb@jodu.de © 2019 European Society of Anaesthesiology

Effect of positive end-expiratory pressure on gastric insufflation during induction of anaesthesia when using pressure-controlled ventilation via a face mask: A randomised controlled trial
BACKGROUND Face mask ventilation (FMV) during induction of anaesthesia is associated with risk of gastric insufflation that may lead to gastric regurgitation and pulmonary aspiration. A continuous positive airway pressure (CPAP) has been shown to reduce gastric regurgitation. We therefore hypothesised that CPAP followed by FMV with positive end-expiratory pressure (PEEP) during induction of anaesthesia would reduce the risk of gastric insufflation. OBJECTIVE The primary aim was to compare the incidence of gastric insufflation during FMV with a fixed PEEP level or zero PEEP (ZEEP) after anaesthesia induction. A secondary aim was to investigate the effects of FMV with or without PEEP on upper oesophageal sphincter (UES), oesophageal body and lower oesophageal sphincter (LES) pressures. DESIGN A randomised controlled trial. SETTING Single centre, Department of Anaesthesia and Intensive Care, Örebro University Hospital, Sweden. PARTICIPANTS Thirty healthy volunteers. INTERVENTIONS Pre-oxygenation without or with CPAP 10 cmH2O, followed by pressure-controlled FMV with either ZEEP or PEEP 10 cmH2O after anaesthesia induction. MAIN OUTCOME MEASURES A combined impedance/manometry catheter was used to detect the presence of gas and to measure oesophageal pressures. The primary outcome measure was the cumulative incidence of gastric insufflation, defined as a sudden anterograde increase in impedance of more than 1 kΩ over the LES. Secondary outcome measures were UES, oesophageal body and LES pressures. RESULTS The cumulative incidence of gastric insufflation related to peak inspiratory pressure (PIP), was significantly higher in the PEEP group compared with the ZEEP group (log-rank test P < 0.01). When PIP reached 30 cmH2O, 13 out of 15 in the PEEP group compared with five out of 15 had shown gastric insufflation. There was a significant reduction of oesophageal sphincter pressures within groups comparing pre-oxygenation to after anaesthesia induction, but there were no significant differences in oesophageal sphincter pressures related to the level of PEEP. CONCLUSION Contrary to the primary hypothesis, with increasing PIP the tested PEEP level did not protect against but facilitated gastric insufflation during FMV. This result suggests that PEEP should be used with caution after anaesthesia induction during FMV, whereas CPAP during pre-oxygenation seems to be safe. TRIAL REGISTRATION ClinicalTrials.gov, identifier: NCT02238691. This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0 Correspondence to Per Cajander, Department of Anaesthesia and Intensive Care Örebro University Hospital, Södra Grev-Rosengatan, 701 85, Örebro, Sweden Tel: +46 19 602 03 53; e-mail: per.cajander@regionorebrolan.se © 2019 European Society of Anaesthesiology

Effect of sevoflurane-based or propofol-based anaesthesia on the incidence of postoperative acute kidney injury: A retrospective propensity score-matched analysis
BACKGROUND Propofol may help to protect against ischaemic acute kidney injury (AKI); however, research on this topic is sparse. OBJECTIVE The current study aimed to investigate whether there were differences in the incidence of postoperative AKI after lung resection surgery between patients who received propofol-based total intravenous anaesthesia (TIVA) and those who received sevoflurane-based inhalational anaesthesia. DESIGN A retrospective observational study. SETTING A single tertiary care hospital. PATIENTS Medical records of patients aged 19 years or older who underwent curative lung resection surgery for nonsmall cell lung cancer between January 2005 and February 2018 were examined. MAIN OUTCOME MEASURES After propensity score matching, the incidence of AKI in the first 3 postoperative days was compared between patients who received propofol and those who received sevoflurane. Logistic regression analyses were also used to investigate whether propofol-based TIVA lowered the risk of postoperative AKI. RESULTS The analysis included 2872 patients (1477 in the sevoflurane group and 1395 in the propofol group). After propensity score matching, 661 patients were included in each group; 24 (3.6%) of the 661 patients in the sevoflurane group developed AKI compared with 23 (3.5%) of the 661 patients in the propofol group (95% confidence intervals of difference in incidence −0.019 to 0.022, P = 0.882). The logistic regression analyses revealed that the incidence of AKI was not different in the two groups (odds ratio 0.96, 95% confidence interval 0.53 to 1.71, P = 0.882). CONCLUSION In this retrospective study, no significant difference was found in the incidence of postoperative AKI after lung resection surgery between patients who received propofol-based TIVA and those who received sevoflurane-based inhalational anaesthesia. Considering the methodological limitation of this retrospective study, further studies are required to confirm these results. Correspondence to Tak Kyu Oh, Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, 166, Gumi-ro, Bundang-gu, Seongnam-si 13620, Gyeonggi-do, South Korea Tel: +82 31 787 7501; fax: +82 31 787 4063; e-mail: airohtak@hotmail.com Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.ejanaesthesiology.com). © 2019 European Society of Anaesthesiology

Colour Doppler ultrasound after major cardiac surgery improves diagnostic accuracy of the pulmonary infection score in acute respiratory failure: A prospective observational study
BACKGROUND Postoperative pneumonia is a frequent complication after cardiac surgery, and its diagnosis is difficult. Little is known about the diagnostic accuracy of lung ultrasound (LUS) in the detection of pneumonia in cardiac surgical patients. The substitution of chest radiography by colour Doppler LUS (LUS-sCPIS) in the simplified clinical pulmonary infection score (sCPIS) could improve the diagnosis of pneumonia following cardiac surgery. OBJECTIVE The aim of this study was to compare the diagnostic accuracy of LUS-sCPIS and of sCPIS alone in the detection of postoperative pneumonia after cardiac surgery. DESIGN A prospective study of diagnostic accuracy. SETTING A Surgical Intensive Care Unit of a French University Hospital. PATIENTS Fifty-one patients with acute respiratory failure within 72 h after cardiac surgery were enrolled between January and May 2015. MAIN OUTCOME MEASURE The two index tests, LUS-sCPIS and sCPIS, were calculated for all patients at the onset of acute respiratory failure. The reference standard for the diagnosis of pneumonia was based on the consensus of three physicians, blind to the sCPIS and LUS-sCPIS data, based on a posthoc review of all the clinical, radiological and microbiological evidence. The diagnostic accuracy of LUS-sCPIS was compared with that of sCPIS in the detection of postoperative pneumonia. RESULTS Pneumonia was diagnosed in 26 out of 51 patients. The LUS-sCPIS detected the presence of pneumonia with a sensitivity of 92% (95% CI 0.85 to 0.99) and a specificity of 68% (95% CI 0.55 to 0.81). The sCPIS detected the presence of pneumonia with a sensitivity of 35% (95% CI 0.22 to 0.48) and a specificity of 84% (95% CI 0.74 to 0.94). The area under the curve (AUC) of LUS-sCPIS at 0.80 (95% CI 0.69 to 0.91) was higher than the AUC of sCPIS at 0.59 (95% CI 0.47 to 0.71; P = 0.0008). CONCLUSION Compared with sCPIS, LUS-sCPIS improved diagnostic accuracy in the detection of postoperative pneumonia in patients with acute respiratory failure after cardiac surgery. It could be a useful bedside tool to guide pneumonia management. TRIAL REGISTRATION Clinicaltrials.gov identifier: NCT03279887. https://clinicaltrials.gov/ct2/show/NCT03279887?term=bougl%C3%A9&rank=4 Correspondence to Adrien Bouglé, MD, PhD, Département d'Anesthésie et de Réanimation, Réanimation de Chirurgie Cardiaque, Institut de Cardiologie, Hôpital Universitaire La Pitié-Salpêtrière, 47–83 boulevard de l'Hôpital, Paris 75013, France; e-mail: adrien.bougle@aphp.fr Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.ejanaesthesiology.com). © 2019 European Society of Anaesthesiology

Reintubation in the ICU following cardiac surgery: is it more difficult than first-time intubation in the operating room?: A prospective, observational study
BACKGROUND After cardiac surgery, a patient's trachea is usually extubated; however, 2 to 13% of cardiac surgery patients require reintubation in the ICU. OBJECTIVE The objective of this study was to compare the initial intubation in the cardiac operating room with reintubation (if required) in the ICU following cardiac surgery. DESIGN A prospective, observational study. SETTING Department of Anesthesiology and Intensive Care Medicine, Clinical Hospital of Santiago, Spain. PATIENTS With approval of the local ethics committee, over a 44-month period, we prospectively enrolled all cardiac surgical patients who were intubated in the operating room using direct laryngoscopy, and who required reintubation later in the ICU. MAIN OUTCOME MEASURES The primary endpoint was to compare first-time success rates for intubation in the operating room and ICU. Secondary endpoints were to compare the technical difficulties of intubation (modified Cormack–Lehane glottic view, operator-reported difficulty of intubation, need for support devices for direct laryngoscopy) and the incidence of complications. RESULTS A total of 122 cardiac surgical patients required reintubation in the ICU. Reintubation was associated with a lower first-time success rate than in the operating room (88.5 vs. 97.6%, P = 0.0048). Reintubation in the ICU was associated with a higher incidence of Cormack–Lehane grades IIb, III or IV views (34.5 vs. 10.7%, P < 0.0001), a higher incidence of moderate or difficult intubation (17.2 vs. 6.5%, P = 0.0001) and a greater need for additional support during direct laryngoscopy (20.5 vs. 10.7%, P = 0.005). Complications were more common during reintubations in the ICU (39.3 vs. 5.7%, P < 0.0001). CONCLUSION Compared with intubations in the operating room, reintubation of cardiac surgical patients in the ICU was associated with more technical difficulties and a higher incidence of complications. CLINICAL TRIAL NUMBER Ethics committee of Galicia number 2015-012. Correspondence to Dr Manuel Taboada, Department of Anesthesiology and Intensive Care Medicine, Servicio de Anestesiología y Reanimación del Hospital Clínico Universitario de Santiago de Compostela, Choupana sn, CP:15706 Santiago de Compostela, A Coruña, España Tel: +00 34 678195618; e-mail: manutabo@yahoo.es © 2019 European Society of Anaesthesiology

Propofol intravenous anaesthesia with desflurane compared with desflurane alone on postoperative liver function after living-donor liver transplantation: A randomised controlled trial
BACKGROUND Propofol is an anaesthetic that resembles α-tocopherol and it has been suggested that it protects against ischaemia-reperfusion injury in liver transplantation. Living-donor liver transplantation (LDLT) presents an opportunity to test this hypothesis in both donors and recipients. OBJECTIVES We compared clinical outcomes after LDLT following anaesthesia with propofol and desflurane against desflurane alone. DESIGN A prospective, randomised, parallel study. SETTING Single-centre trial, study period June 2014 and May 2017. PATIENTS Sixty-two pairs of adult donors and recipients who underwent LDLT. INTERVENTION Patients were randomised to receive either desflurane balanced anaesthesia or propofol total intravenous anaesthesia combined with desflurane anaesthesia. MAIN OUTCOME MEASURES The primary outcome was peak liver transaminase levels during the first 7 days after surgery. Liver function was assessed at 10 different time-points (before surgery, 1 h after reperfusion, upon arrival in the ICU, and daily until postoperative day 7). Creatinine was measured to evaluate the incidence of acute kidney injury. TNF-α, IL-1β, IL-6 and TGF-β1 were assessed in 31 donors after induction, at hepatectomy and at the end of surgery and in 52 recipients after induction, and 1, 3 and 24 h after reperfusion. RESULTS Peak liver transaminase levels were not significantly different between the two groups. Liver function tests and creatinine were also similar between groups at all time-points. There was no difference in the incidence of postoperative complications, including acute kidney injury. With the exception of higher TNF-α in donors of the Propofol group at hepatectomy (0.60 ± 0.29 vs. 1.03 ± 0.53, P = 0.01) cytokine results were comparable between the two groups. CONCLUSION Despite the simultaneous administration of propofol infusion in both donors and recipients, no improvement in laboratory or surgical outcome was observed after LDLT compared with patients who received desflurane anaesthesia alone. TRIAL REGISTRATION NCT02504138 at clinicaltrials.gov. Correspondence to Young C. Yoo, Department of Anesthesiology and Pain Medicine, Severance Hospital, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea Tel: +82 2 2228 2420; fax: +82 2 2227 7897; e-mail: seaoyster@yuhs.ac © 2019 European Society of Anaesthesiology

Can quantitative sensory tests predict failed back surgery?: A prospective cohort study
BACKGROUND Failed back surgery syndrome (FBSS) is a pain condition refractory to therapy, and is characterised by persistent low back pain after spinal surgery. FBSS is associated with severe disability, low quality of life and high unemployment. We are currently unable to identify patients who are at risk of developing FBSS. Patients with chronic low back pain may display signs of central hypersensitivity as assessed by quantitative sensory tests (QST). This can contribute to the risk of developing persistent pain after surgery. OBJECTIVE We tested the hypothesis that central hypersensitivity as assessed by QST predicts FBSS. DESIGN AND SETTING We performed a prospective cohort study in three tertiary care centres with 141 patients scheduled for up to three segment spinal surgery for chronic low back pain due to degenerative changes. PATIENTS Chronic low back pain was defined as at least 3 on a numerical rating scale on most days during the week and with a minimum duration of 3 months. OUTCOMES We defined FBSS as persistent pain, persistent disability or a composite outcome defined as either persistent pain or disability. The primary outcome was persistent pain 12 months after surgery. We applied 14 QST using electrical, pressure and temperature stimulation to predict FBSS and assessed the association of QST with FBSS in multivariable analyses adjusted for sociodemographic, psychological and clinical and surgery-related characteristics. RESULTS None of the investigated 14 QST predicted FBSS, with 95% confidence intervals of crude and adjusted associations of all QST including one as a measure of no association. Results remained robust in all sensitivity and secondary analyses. CONCLUSION The study indicates that assessment of altered central pain processing using current QST is unlikely to identify patients at risk of FBSS and is therefore unlikely to inform clinical decisions. Correspondence to Prof. Michele Curatolo, MD, PhD, Department of Anesthesiology and Pain Medicine, University of Washington, 1959 NE Pacific Street, Box 356540 Seattle, WA 98195-6540, USA Tel: +1 206 543 2568; fax: +1 206 543 2958; e-mail: curatolo@uw.edu Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.ejanaesthesiology.com). © 2019 European Society of Anaesthesiology

Tidal volume challenge to predict fluid responsiveness in the operating room: A prospective trial on neurosurgical patients undergoing protective ventilation
BACKGROUND Pulse pressure variation (PPV) and stroke volume variation (SVV) do not predict fluid responsiveness when using a protective ventilation strategy: the use of functional haemodynamic tests can be useful to overcome this limitation. OBJECTIVES We tested the use of a tidal volume challenge (VTC), during 6 ml kg−1 [predicted body weight (PBW)] ventilation, and the end-expiratory occlusion test (EEOT) for prediction of fluid responsiveness. DESIGN An interventional prospective study. SETTING Supine elective neurosurgical patients. INTERVENTIONS The study protocol was, first, the initial EEOT test was performed during baseline 6 ml kg−1 PBW ventilation; second, VTC was performed by increasing the VT up to 8 ml kg−1 PBW and PPV and SVV changes were recorded after 1 min; third, a second EEOT was performed during 8 ml kg−1 PBW ventilation; and VT was reduced back to 6 ml kg−1 PBW and a third EEOT was performed. Finally, a 250 ml fluid challenge was administered over 10 min to identify fluid responders (increase in stroke volume index ≥10%). RESULTS In the 40 patients analysed, PPV and SVV values at baseline and EEOT performed at 6 ml kg−1 PBW did not predict fluid responsiveness. A 13.3% increase in PPV after VTC predicted fluid responsiveness with a sensitivity of 94.7% and a specificity of 76.1%, while a 12.1% increase in SVV after VTC predicted fluid responsiveness with a sensitivity of 78.9% and a specificity of 95.2%. After EEOT performed at 8 ml kg−1 PBW, a 3.6% increase in cardiac index predicted fluid responsiveness with a sensitivity of 89.4% and a specificity of 85.7%, while a 4.7% increase in stroke volume index (SVI) with a sensitivity of 89.4% and a specificity of 85.7%. CONCLUSION The changes in PPV and SVV obtained after VTC are reliable and comparable to the changes in CI and SVI obtained after EEOT performed at 8 ml kg−1 PBW in predicting fluid responsiveness in neurosurgical patients. TRIAL REGISTRATION ACTRN12618000351213. Correspondence to Antonio Messina, MD, PhD, Department of Anaesthesia and Intensive Care Medicine, IRCCS Humanitas, Humanitas University, Via Alessandro Manzoni, 56, Rozzano – Milan 20089, Italy. Tel: +39(0)2 8224 8282; e-mail: mess81rc@gmail.com Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.ejanaesthesiology.com). © 2019 European Society of Anaesthesiology

Effect of pre-operative oral carbohydrate loading on recovery after day-case cholecystectomy: A randomised controlled trial
BACKGROUND Pre-operative carbohydrate loading has been shown to reduce pre-operative discomfort and postoperative nausea and vomiting in general surgical patients. Few studies have considered day-case surgery. OBJECTIVE The aim of this prospective randomised study was to determine whether pre-operative carbohydrate loading enhanced recovery after day-case cholecystectomy. DESIGN A randomised controlled trial. SETTING Secondary care in a district general and a university hospital in Finland between 2013 and 2016. PATIENTS A total of 113 patients American Society of Anesthesiologists physical status I or II aged 18 to 70 undergoing day-case cholecystectomy were included in the study. Exclusion criteria were bleeding or coagulation disorders, BMI more than 40 kg m−2, dementia, insulin-treated diabetes, migraine, Meniere's disease or a history of alcohol or drug abuse. INTERVENTION The carbohydrate-rich drink group received oral carbohydrate (200 ml) 2 to 3 h before surgery, and the control (fasting) group fasted from midnight according to standard protocol. MAIN OUTCOME MEASURES Visual analogue scales (VAS) were used to score six forms of discomfort: the need for analgesia and antiemetics, the time to drinking, eating and first mobilisation after surgery and the time to discharge. Any hospital re-admission was also recorded. RESULTS The highest VAS scores were seen for mouth dryness and tiredness 2 h after surgery in the fasting group. There were no significant differences in any VAS scores between the study groups. No differences in time to mobilisation, need for pain or antiemetic medication or time to discharge were seen between the groups. CONCLUSION Compared with overnight fasting, pre-operative carbohydrate loading did not significantly enhance peri-operative well being or recovery in patients undergoing day-case cholecystectomy. TRIAL REGISTRATION Clinicaltrials.gov Identifier: NCT03757208. Correspondence to Heli Helminen, Senior Physician, Department of Surgery, Seinäjoki Central Hospital, Hanneksenrinne 7, 60220 Seinäjoki, Finland Tel: +358 64155888; e-mail: heli.helminen@epshp.fi © 2019 European Society of Anaesthesiology



ALEXANDROS SFAKIANAKIS ANAPAFSEOS 5 AGIOS NIKOLAOS CRETE 72100 GREECE +306932607174 +302841026182

Actas Dermo-Sifiliográficas

Microsporum audouinii: un dermatofito causante de una tiña reemergente

Publication date: Available online 29 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): B. Lozano-Masdemont, B. Carrasco-Fernández, I. Polimón-Olabarrieta, M.T. Durán-Valle



Eccema y urticaria en la población adulta en Portugal: un estudio de prevalencia

Publication date: Available online 29 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): D. Carvalho, P. Aguiar, P. Ferrinho, P. Mendes-Bastos, A. Palma-Carlos

Resumen
Antecedentes y objetivos

Tanto el eccema como la urticaria son enfermedades inflamatorias de la piel. La prevalencia de ambas varía a lo largo de todo el mundo y se desconocen las razones de este hecho. Nuestro objetivo es investigar la prevalencia del eccema y la urticaria en la población portuguesa adulta (≥ 16 años).

Materiales y métodos

Se realizó una encuesta telefónica en el último trimestre de 2017. Para calcular las prevalencias, los individuos debían haber sido diagnosticados previamente, por un profesional sanitario, de eccema/urticaria, ser mayores de 16 años y residir en Portugal. La muestra era aproximadamente representativa de la población, región, sexo y grupo de edad. La ratio de odds se empleó para medir las asociaciones con la prevalencia. Se utilizó el software SPSS Statistics, y aquellos datos con un valor p < 0,005 con un intervalo de confianza del 95% fueron considerados estadísticamente significativos.

Resultados

Se analizaron 5.000 llamadas telefónicas. La prevalencia en Portugal del eccema y la urticaria es del 4,4% y 3,4%, respectivamente. El Algarve es la región en la que la prevalencia de ambas enfermedades es más alta. Ser mujer es el factor que más influyó en estas enfermedades, con una OR = 1,99 (p < 0,001; IC: 1,49-2,66) para el eccema y OR = 1,73 (p = 0,001; IC: 1,25-2,40) para la urticaria, siendo las prevalencias también más altas (5,7% y 4,2%, respectivamente).

Conclusiones

Las prevalencias encontradas son más altas que las observadas en estudios anteriores en Portugal y comparables a los resultados procedentes de otros países. Las comparativas de la prevalencia en el eccema se ven afectadas por varios obstáculos. En cuanto a la urticaria, nuestros resultados parecen estar en consonancia con otros. Ser mujer con eccema y urticaria es más frecuente y representa un factor de riesgo más alto que el ser hombre. De acuerdo con Harrop et al., 2007, en Europa, el eccema atópico supone el 0,14-0,60% del eccema total. En este sentido, podemos estimar que la prevalencia del eccema atópico en Portugal ronda el 0,61-2,64%.

Abstract
Background and aims

Eczema and urticaria are both inflammatory skin diseases. The prevalence of both diseases varies worldwide and the reasons are unknown. We aimed to investigate the eczema and urticaria prevalence in the Portuguese adult (≥ 16 years-old) population.

Materials and methods

A telephone interview survey was performed in the last quarter of 2017. To calculate the prevalences, subjects should have been previously diagnosed with eczema/urticaria by a health professional, be aged ≥ 16 years-old, and reside in Portugal. The sample had a proportion that was approximately representative by population, region, gender, and age group. Odds ratios were performed to measure associations with prevalences. SPSS statistics and values of p < 0.05 with 95% confidence intervals were considered statistically significant.

Results

5,000 phone calls were analysed. The prevalence of eczema and urticaria in Portugal is 4.4% and 3.4%, respectively. Algarve is the region with the highest prevalence for both diseases. Being a female is the factor that most influenced these diseases with an OR = 1.99 (p < 0.001; CI 1.49-2.66) for eczema and 1.73 (p = 0.001; CI 1.25 – 2.40) for urticaria, with also higher prevalences (5.7% and 4.2%, respectively).

Conclusions

The prevalences found are higher than in previous studies in Portugal and comparable to results from other countries. Comparisons among prevalence of eczema are affected by several obstacles. Regarding urticaria, our results seem to be in the same line as others. Being female with eczema and urticaria is more common and represents a higher risk factor than male subjects. According to Harrop et al., 2007, in Europe, atopic eczema is 0.14-0.60% of general eczema. In this way, we can estimate that prevalence of atopic eczema in Portugal is around 0.61-2.64%.

Graphical abstract

Graphical abstract for this article



Análisis de la proporción de derivaciones potencialmente evitables desde Atención Primaria a Dermatología por lesiones quísticas o tumorales benignas en España. Datos del estudio DIADERM

Publication date: Available online 29 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): C. González-Cruz, M.Á. Descalzo, S. Arias-Santiago, A. Molina-Leyva, Y. Gilaberte, P. Fernández-Crehuet, H. Husein-ElAhmed, A. Viera-Ramírez, P. Fernández-Peñas, R. Taberner, A. Buendía-Eisman, I. García-Doval, V. García-Patos

Resumen
Antecedentes y objetivo

Las lesiones cutáneas constituyen un motivo de consulta frecuente en Atención Primaria (AP). Aquellas que no supongan un problema de salud, sino una cuestión estética, no deben ser tratadas en el Sistema Nacional de Salud, según la legislación vigente. El objetivo de este trabajo es estimar qué porcentaje de derivaciones remitidas desde AP a Dermatología por lesiones quísticas o tumores benignos corresponde a lesiones que podríamos considerar potencialmente evitables.

Material y método

Utilizamos los diagnósticos principales de los pacientes derivados de AP, recogidos en el estudio representativo nacional DIADERM. Cada uno de los diagnósticos derivados fue clasificado como potencialmente evitable si se correspondía con alguno de los diagnósticos con criterio de alta desde AP, establecidos en el documento de consenso propuesto por la sección territorial andaluza de la Academia Española de Dermatología y Venereología.

Resultados

Se recogieron datos de 2.171 motivos principales de consulta derivados de AP como primeras consultas. De estos, 686 (31,6%) son diagnósticos que podrían corresponderse con derivaciones potencialmente evitables por lesiones quísticas o tumorales benignas. Un 22% (478) del total de las consultas fueron dadas de alta en la primera visita. Los diagnósticos más frecuentes entre estos fueron las queratosis seborreicas (9,3%) y los nevus melanocíticos (8,6%).

Conclusiones

La proporción de derivaciones potencialmente evitables a Dermatología desde AP por lesiones quísticas y tumorales benignas supone casi un tercio de las consultas. El conocimiento de la realidad asistencial de nuestro entorno puede ser útil para mejorar la planificación, la formación y la gestión sanitaria.

Abstract
Background and objective

Skin lesions are a common reason for consulting a Primary Care (PC) physician. Current legislation in Spain states that purely aesthetic skin problems that do not pose a health problem are not to be treated within the National Health Service. The aim of this study was to estimate the proportion of referrals from PC physicians to dermatologists that were for cystic lesions or benign tumors and could potentially have been avoided.

Material and method

We consulted cases registered in the DIADERM study dataset, which is representative of dermatology practice in Spain, and collected the main diagnoses given on referring patients from PC. A referral diagnosis was classified as potentially avoidable if it corresponded to one of the PC discharge diagnoses listed in a consensus paper of the Andalusian section of the Spanish Academy of Dermatology and Venereology.

Results

We collected 2,171 main reasons for first-visit referrals to dermatologists; 686 of them (31.6%) were for cystic lesions or benign tumors and classified as potentially avoidable. In 478 cases (22%) the patients were discharged on the first visit. The most frequent diagnoses in such cases were seborrheic keratosis (9.3%) and melanocytic nevus (8.6%).

Conclusions

Nearly a third of referrals from primary care to a dermatologist were for cystic lesions and benign tumors and could have been avoided. A clearer understanding of our caseload can be useful for improving planning, training, and health care system management.



Osteoporosis y psoriasis

Publication date: Available online 28 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): M. Muñoz-Torres, P. Aguado, E. Daudén, J.M. Carrascosa, R. Rivera

Resumen

La psoriasis es un proceso inflamatorio crónico que se ha asociado con múltiples comorbilidades, especialmente las formas más graves y asociadas a artritis. El estado de inflamación sistémica es, probablemente, la conexión entre todas estas enfermedades concomitantes. Algunos trabajos recientes indican que los pacientes con psoriasis pueden tener mayor riesgo de fracturas patológicas y osteoporosis. Las guías actuales de abordaje de las comorbilidades de la psoriasis no incluyen valoración de la salud del hueso. Por eso, en este artículo nos proponemos revisar la evidencia disponible sobre la relación entre psoriasis y osteoporosis. Repasaremos primero el concepto de osteoporosis, abordaremos también el papel de la vitamina D en el hueso y, por último, proponemos un algoritmo de manejo y tratamiento de la osteoporosis en el paciente con psoriasis.

Abstract

Psoriasis is a chronic inflammatory disease associated with multiple comorbidities, particularly in patients with arthritis or more severe forms of the disease. The link between all these comorbidities is probably systemic inflammation. Several recent studies have indicated that patients with psoriasis may be at an increased risk of pathologic fractures and osteoporosis. Current guidelines on comorbidities in psoriasis do not recommend assessment of bone health. In this article, we review the available evidence on the association between psoriasis and osteoporosis. We first examine the concept of osteoporosis and the role of vitamin D in bone health and then propose an algorithm for managing and treating this condition in patients with psoriasis.



Fístula parotídea tras biopsia cutánea: tratamiento con toxina botulínica

Publication date: Available online 28 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): B. Bancalari, B. Llombart, C. Requena, J.B. Vendrell



Experiencia en el manejo de 3 tumores pilares proliferantes: definición, diagnósticos diferenciales y alternativas terapéuticas

Publication date: Available online 28 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): C.E. Alarcón Pérez, D. Gómez Ángulo, M. Olmos Pérez, O. Mora Hernández, S.D. Morales

Resumen

El tumor pilar proliferante es una neoplasia cutánea rara, que se deriva de la vaina de la raíz externa de los folículos pilosos con un amplio espectro en su presentación dado a que puede variar desde la benignidad hasta la malignidad con alta probabilidad de recurrencia posterior a su escisión. En este artículo describimos la experiencia del Hospital de San José en Bogotá, Colombia en el manejo de 3 tumores pilares proliferantes, con una presentación clínica y un comportamiento patológico distinto.

Abstract

A proliferating pilar tumor is a rare skin neoplasm that arises from the outer root sheath of a hair follicle. Presentation varies widely, as the tumor can be benign or malignant and has a high probability of recurring after excision.

We report our experience managing 3 proliferating pilar tumors with different clinical presentations and pathology findings at Hospital de San José, Bogota, Colombia.



Pioderma gangrenoso asociado a colitis ulcerosa con buena respuesta a ustekinumab

Publication date: Available online 28 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): J. Piqueras-García, A.J. Sahuquillo-Torralba, I. Torres-Navarro, R. Botella-Estrada



FR - Brentuximab como tratamiento de los linfomas cutáneos primarios CD30

Publication date: Available online 28 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): D. Morgado-Carrasco, A. Combalia, T. Estrach Panella



Diagnóstico y tratamiento del síndrome de piel sensible: un algoritmo para la práctica clínica habitual

Publication date: Available online 27 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): A. Guerra-Tapia, E. Serra-Baldrich, L. Prieto Cabezas, E. González-Guerra, J.L. López-Estebaranz

Resumen

Tradicionalmente, la piel sensible se ha considerado como un problema cosmético o como una alteración puramente psicosomática con un fuerte componente subjetivo. Sin embargo, diversos estudios científicos sobre sus procesos fisiopatológicos y su etiopatogenia han demostrado que se trata de una entidad compleja que ya diversos autores consideran un síndrome neurodermatológico. Sus características hacen que su diagnóstico y tratamiento puedan resultar complicados en la práctica clínica habitual, siendo necesarias herramientas sencillas que se puedan usar de rutina, tanto para identificar esta entidad, que puede presentarse acompañada de otra patología, como para su manejo independiente. En este trabajo realizamos una revisión práctica de los avances científicos más recientes el campo de la piel sensible que justifican su consideración individual y ofrecen herramientas para identificarla y tratarla. Proponemos algoritmos de diagnóstico y de tratamiento basados en las evidencias de la literatura y en la opinión de los expertos que firman este artículo.

Abstract

Sensitive skin has traditionally been viewed as a cosmetic problem or as a purely psychosomatic alteration with a major subjective component. Different studies of its pathophysiologic etiology, however, have shown it to be a complex entity that several authors now consider to be a neurodermatological syndrome. Because of this complexity, skin sensitivity can be difficult to diagnose and treat, particularly considering that it may present with another disease. Simple tools applicable to clinical practice are thus necessary to identify and manage this disease as an independent entity. In this study, we perform a practical review of the most recent scientific advances in the area of sensitive skin that justify it being considered an individual entity, and provide tools for its identification and treatment. We propose diagnostic and treatment algorithms based on evidence from the literature and our experience and expertise.

Graphical abstract

Graphical abstract for this article



Nódulo rosado de lento crecimiento en glúteo

Publication date: Available online 27 May 2019

Source: Actas Dermo-Sifiliográficas

Author(s): E. Rodríguez-Lomba, B. Lozano-Masdemont, J.A. Avilés-Izquierdo





ALEXANDROS SFAKIANAKIS ANAPAFSEOS 5 AGIOS NIKOLAOS CRETE 72100 GREECE +306932607174 +302841026182

Ethics

The Effect of Top Management Trustworthiness on Turnover Intentions via Negative Emotions: The Moderating Role of Gender

Abstract

Based on a field study (N = 303), this paper explores the differential role that perceived top management trustworthiness has on female and male employees' negative emotions and turnover intentions in organizations. A theoretical model is established that explicates a negative indirect effect of perceived top management trustworthiness on employee turnover intentions through employee negative emotions. The results reveal that there is a negative relationship between perceived top management trustworthiness and employee negative emotions and resulting turnover intentions and that this effect is stronger for female employees than for male employees. These results demonstrate the pivotal role played by top management trustworthiness, provide an explanation for the turnover gender gap, and highlight the subjectivity in reactions to trustworthiness perceptions. The implications for organizations are discussed in line with the need for top management to positively influence employees and particularly women, to retain them in their workforce.



The Political Embeddedness of Entrepreneurship in Extreme Contexts: The Case of the West Bank

Abstract

This article underscores the need for entrepreneurship research in extreme contexts to conceptualize the idiosyncrasies of the geopolitical dynamics under which entrepreneurs operate, and to consider the ethical implications emanating thereof. Undertaking such a task will illuminate the contextual challenges that local entrepreneurs must routinely placate, or otherwise navigate, to survive. Drawing on rich qualitative data from the Occupied Palestinian Territory of the West Bank, this paper demonstrates one avenue by which to capture the nuances of an extreme context in relation to its effects on the entrepreneurial process. Specifically, it shows how data collected at myriad institutional sites—from actors that are not only directly, but also tangentially, connected to entrepreneurship in the local market—can effectively unveil the vicissitudes of the extreme context. This article further contends that a comprehensive and a holistic understanding of the extreme context will move toward revealing the nature of political embeddedness of entrepreneurs in their institutionally unstable environment—a concern that is especially conspicuous in geopolitical areas that would qualify as being extreme.



The Imaginary Intrasexual Competition: Advertisements Featuring Provocative Female Models Trigger Women to Engage in Indirect Aggression

Abstract

Recent research suggests that women react to idealized female models in advertising as they would react to real-life sexual rivals. Across four studies, we investigate the negative consequences of this imaginary competition on consumers' mate-guarding jealousy, indirect aggression, and drive for thinness. A meta-analysis of studies 1–3 shows that women exposed to an idealized model report more mate-guarding jealousy and show increased indirect aggression (i.e., derogation and social exclusion), but do not report a higher desire for thinness. Study 4 replicates these findings and reveals that the main driver of aggression is the sexually provocative attitude of the model (a signal of a flirting behavior and of sexual availability), rather than her thin body size. The ethical implications of these findings for advertising are discussed in light of recent concerns about female bullying, online, and in the workplace.



Categorization of Whistleblowers Using the Whistleblowing Triangle

Abstract

In view of recent studies that identified certain interest groups as potential whistleblowers, we propose an integrative conceptual framework to examine whistleblower behavior by whistleblower type. The framework, dubbed the whistleblowing triangle, is modeled on the fraud triangle and is comprised of three factors that condition the act of whistleblowing: pressure, opportunity, and rationalization. For a rich examination, we use a qualitative research framework to analyze 11 whistleblowing cases of corporate financial statement fraud in Canada that were publicly denounced between 1995 and 2012. Our analysis indicates that whistleblowers are not only insiders (employees, managers, and shareholders involved in management) but also outsiders [financial analysts (short sellers), auditing firms, journalists, politicians, customers, and investors]. It also suggests that a dynamic relation may exist between whistleblowers. In addition, our findings show that most whistleblowers opt for external channels when they fail to receive an adequate response from management, seek media exposure, are interested in financial benefits resulting from the act of whistleblowing (short sellers), or are interested in protecting their investment. Lastly, we propose categorizing whistleblowers into four conceptual types: protective, skeptical, role-prescribed, and self-interested.



When and for Whom Ethical Leadership is More Effective in Eliciting Work Meaningfulness and Positive Attitudes: The Moderating Roles of Core Self-Evaluation and Perceived Organizational Support

Abstract

Despite urgent calls for more research on the integration of business ethics and the meaning of work, to date, there have been few corresponding efforts, and we know surprisingly little about this relationship. In this study, we address this issue by examining when and for whom ethical leadership is more (or less) effective in promoting a sense of work meaningfulness among employees, and their subsequent work attitudes. Drawing on the contingency theories of leadership and work meaningfulness literature, we speculate that both employees' core self-evaluation (CSE; as a dispositional characteristic) and perceived organizational support (POS; as a situational characteristic) moderate the relationship, but in different ways, and these associations carry over to employees' subsequent work attitudes in terms of job satisfaction, organizational commitment and turnover intention. We test our hypotheses with two-wave survey data collected from 377 employees. Results indicate that ethical leadership is effective in eliciting work meaningfulness and attitudes for employees higher in CSE or when POS is lower, and ineffective for those lower in CSE or when POS is higher. A supplementary analysis reveals a three-way interaction between ethical leadership, CSE and POS in predicting a sense of work meaningfulness and subsequent work attitudes. Our research cautions that ethical leadership is not a universally positive practice; it can be ineffective or even have a negative impact under some circumstances.



Impact of Enforcement on Healthcare Billing Fraud: Evidence from the USA

Abstract

Each state's Medicaid Fraud Control Unit (MFCU) prosecutes billing fraud cases against individual healthcare providers who fraudulently bill Medicaid for services provided. Once an individual is convicted of billing fraud, the Office of Inspector General for the Department of Health and Human Services may exclude the individual from billing any federal government healthcare program, including Medicaid. Excluded individuals are added to a public list of exclusions, which restricts their ability to practice professionally. Prompted by criminology research into the impact of policing resources, we test whether these government enforcement initiatives against fraud serve as a deterrent to would-be fraudulent billers. We document that key enforcement proxies, the staffing level and budget of an MFCU, are positively associated with the yearly number of exclusions added at the state level. Our results are consistent with the exclusion list not being a deterrent but provide support for MFCUs' fraud detection efforts. This paper provides industry-specific fraud insights for auditors and other individuals involved in public policy, specifically Medicaid, and introduces a novel dataset to the accounting fraud research literature.



The Risk of Fraud in Family Firms: Assessments of External Auditors

Abstract

There is a dearth of business ethics research on family firms, despite the importance of such firms to the US economy (Vazquez in J Bus Ethics, 2016. doi:10.1007/s10551-016-3171-1). We answer Vazquez's (2016) call to examine the intersection of family-firm research and business ethics, by investigating whether external auditors assess higher risk of fraud in family firms. We test the contradictory predictions of two dominant theoretical perspectives in family-firm research—entrenchment theory and alignment theory. We conduct an experiment with highly experienced external audit professionals, who assess the risk of fraud and make client acceptance decisions for family firms versus non-family firms with different strength of corporate governance: strong versus weak audit committees (ACs). We find that auditors assess the risk of fraud as higher for family firms than for non-family firms, consistent with the predictions of entrenchment theory. Auditors are also less likely to make client acceptance recommendations for family firms. The strength of the AC moderates the family-firm effect, whereby auditors assess family firms with weak ACs to have the highest fraud risk and to be the least desirable audit clients. Our findings suggest that auditors perceive more severe agency conflicts to be present in family firms than in non-family firms, consistent with entrenchment theory, according to which family members may behave opportunistically to extract rents and potentially expropriate the firm's resources at the expense of minority shareholders.



The Moral Entrepreneur: A New Component of Ethical Leadership

Abstract

Ethical leadership has become a popular subject of empirical research in recent years. Most studies follow Brown et al.'s (Organ Behav Hum Decis Process, 97:117–134, 2005) definition of ethical leadership, which consists of two components: the moral person and the moral manager. In this paper, I argue for a third relevant component: i.e., the moral entrepreneur who creates a new ethical norm. Viewing moral entrepreneurship as a new component of ethical leadership opens up avenues for studying various antecedents and outcomes of ethical leadership that have not been acknowledged so far, or at least, not adequately.



The Leader as Chief Truth Officer: The Ethical Responsibility of "Managing the Truth" in Organizations

Abstract

Our aim is to analyze the position of the leader in relation to the ethical dimension of truth-telling within the organization under his/her control. Based on Michel Foucault's study of truth-telling, we demonstrate that the role of the leader toward the corporation and the imperative of organizational performance place the leader in an ambiguous position: he/she is obliged to take the lead in "telling the truth" internally and externally, but also to bear the consequences of this "truth-telling" for the organization and for himself/herself. In this process of construction and implementing the truth, the leader is organizer and figurehead of the corporation's truth-telling practices: determining the frontiers between truth that can be said and that which should remain hidden, both inside and outside the corporation; establishing a dialogue based on truth (i.e., an authentic, sincere relationship with all partners); guaranteeing that the rules of truth-telling are respected; and offering a truth which is compatible with the firm's economic and ethical interest. Invested with the authority—the office—of managing truth within the corporation, the leader can be considered to be the "Chief Truth Officer." From this perspective, we demonstrate that this role requires specific skills, like courage and practical wisdom.



The Interpersonal Benefits of Leader Mindfulness: A Serial Mediation Model Linking Leader Mindfulness, Leader Procedural Justice Enactment, and Employee Exhaustion and Performance

Abstract

Although it is an increasingly popular assumption that leader mindfulness may positively affect leader behaviors and, in turn, employee outcomes, to date, little empirical evidence supports this view. Against this backdrop, the present research seeks to develop and test a serial mediation model of leader mindfulness. Specifically, we propose that leader mindfulness enhances employee performance and that this relationship is explained by increased leader procedural justice enactment and, subsequently, reduced employees' emotional exhaustion. We conducted three studies to test this model. Study 1 involved employees from a wide range of organizations in the USA (N = 275 employees). Study 2 used a sample of leaders and employees from China and measured our model variables at three different points in time (N = 182 employees and 54 leaders). Both studies provide consistent support for our hypotheses. Finally, Study 3 involved a laboratory experiment in which 62 senior executives were assigned to either a mindfulness induction or to a control condition. Again, results revealed a significant and positive link between leader mindfulness and leader procedural justice enactment. In sum, these findings expand our understanding of mindfulness to the domain of leadership, a key area of organizational research. Moreover, they complement prior studies by showing that mindfulness dynamics go beyond intrapersonal effects but also influence the attitudes and behaviors of others. We discuss our findings in light of their contributions to the mindfulness, ethics, and leadership literatures and point out implications for practice.



Alexandros Sfakianakis
Anapafseos 5 . Agios Nikolaos
Crete.Greece.72100
2841026182
6948891480