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1.
J Youth Adolesc ; 53(7): 1579-1592, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38270823

RESUMO

Research has documented trends in bullying victimization for sexually diverse adolescents in the US, but trends regarding school social unsafety are understudied and there is a dearth of research examining these trends for gender diverse adolescents. This study aimed to identify disparities in bullying victimization and feelings of social unsafety in schools for sexually and gender diverse adolescents. Data stem from the 2014 (N = 15,800; M age = 14.17, SD = 1.50), 2016 (N = 22,310; M age = 14.17, SD = 1.49), and 2018 (N = 10,493; M age = 14.02, SD = 1.52) survey cycles of the Social Safety Monitor, a Dutch cross-sectional school-based study. Findings indicate that sexual orientation disparities remained relatively small, but stable over time, while gender diverse adolescents remained more likely to be victimized and feel unsafe in school, with larger disparities overall. Monitoring these trends is highly relevant, especially considering recent negative developments regarding societal acceptance of sexual and gender diversity.


Assuntos
Bullying , Vítimas de Crime , Minorias Sexuais e de Gênero , Estudantes , Humanos , Bullying/estatística & dados numéricos , Bullying/psicologia , Adolescente , Masculino , Feminino , Vítimas de Crime/psicologia , Vítimas de Crime/estatística & dados numéricos , Minorias Sexuais e de Gênero/psicologia , Minorias Sexuais e de Gênero/estatística & dados numéricos , Estudos Transversais , Estudantes/psicologia , Estudantes/estatística & dados numéricos , Instituições Acadêmicas , Países Baixos , Comportamento do Adolescente/psicologia , Inquéritos e Questionários
2.
Dis Aquat Organ ; 152: 73-83, 2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-36453456

RESUMO

The Critically Endangered southern corroboree frog Pseudophryne corroboree is dependent upon captive assurance colonies for its continued survival. Although the captive breeding programme for this species has largely been successful, embryonic mortality remains high (40-90% per year). This study aimed to investigate the causes of mortality in P. corroboree embryos in the captive collection at Melbourne Zoo. During the 2021 breeding season, we investigated 108 abnormal embryos to determine the impact of infections and anatomical deformities on survival and used culture and molecular methods to identify microbes. Overall, 100% of abnormal embryos had fungal infections, and of these, 41.6% also had anatomical deformities. The mortality rate in abnormal embryos was 89.8%; however, we detected no difference in survival in any of the 3 observed fungal growth patterns or between deformed and non-deformed embryos. Sanger sequencing of the ITS region identified fungal isolates belonging to the genus Ilyonectria, the first record in a vertebrate host, and another as a Plectosphaerella sp., which is the first record of infection in an embryo. Dominant bacteria identified were of the genera Herbaspirillum and Flavobacterium; however, their role in the mortality is unknown. Fungal infection and deformities have a significant impact on embryo survival in captive-bred P. corroboree. In a species which relies on captive breeding, identifying and reducing the impacts of embryonic mortality can inform conservation efforts and improve reintroduction outcomes.


Assuntos
Anuros , Flavobacterium , Animais , Estações do Ano
3.
Anaesthesia ; 75(9): 1191-1204, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32430910

RESUMO

Mortality remains high for patients on the waiting list for organ transplantation. A marked imbalance between the number of available organs and recipients that need to be transplanted persists. Organs from deceased donors are often declined due to perceived and actual suboptimal quality. Adequate donor management offers an opportunity to reduce organ injury and maximise the number of organs than can be offered in order to respect the donor's altruistic gift. The cornerstones of management include: correction of hypovolaemia; maintenance of organ perfusion; prompt treatment of diabetes insipidus; corticosteroid therapy; and lung protective ventilation. The interventions used to deliver these goals are largely based on pathophysiological rationale or extrapolations from general critical care patients. There is currently insufficient high-quality evidence that has assessed whether any interventions in the donor after brain death may actually improve immediate post-transplant function and long-term graft survival or recipient survival after transplantation. Improvements in our understanding of the underlying mechanisms following brain death, in particular the role of immunological and metabolic changes in donors, offer promising future therapeutic opportunities to increase organ utilisation. Establishing a UK donor management research programme involves consideration of ethical, logistical and legal issues that will benefit transplanted patients while respecting the wishes of donors and their families.


Assuntos
Morte Encefálica , Sobrevivência de Enxerto/fisiologia , Transplante de Órgãos/estatística & dados numéricos , Doadores de Tecidos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Humanos , Transplante de Órgãos/tendências , Análise de Sobrevida , Obtenção de Tecidos e Órgãos/tendências , Reino Unido , Listas de Espera
4.
Am J Transplant ; 17(2): 411-419, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27428556

RESUMO

The gap between supply and demand in kidney transplantation has led to increased use of marginal kidneys; however, kidneys with acute kidney injury are often declined/discarded. To determine whether this policy is justified, we analyzed outcomes of donor kidneys with acute kidney injury (AKI) in a large UK cohort. A retrospective analysis of the UK Transplant Registry evaluated deceased donors between 2003 and 2013. Donors were classified as no AKI, or AKI stage 1-3 according to Acute Kidney Injury Network (AKIN) criteria. Relationship of AKI with delayed graft function/primary nonfunction (DGF/PNF), estimated glomerular filtration rate (eGFR), and graft-survival at 90 days and 1 year was analyzed. There were 11 219 kidneys (1869 [17%] with AKI) included. Graft failure at 1 year is greater for donors with AKI than for those without (graft survival 89% vs. 91%, p = 0.02; odds ratio (OR) 1.20 [95% confidence interval (CI): 1.03-1.41]). DGF rates increase with donor AKI stage (p < 0.005), and PNF rates are significantly higher for AKIN stage 3 kidneys (9% vs. 4%, p = 0.04) Analysis of association between AKI and recipient eGFR suggests a risk of inferior eGFR with AKI versus no AKI (p < 0.005; OR 1.25 [95% CI: 1.08-1.31]). We report a small reduction in 1-year graft-survival of kidneys from donors with AKI. We conclude that AKI stage 1 or 2 kidneys should be used; however, caution is advised for AKI stage 3 donors.


Assuntos
Injúria Renal Aguda/fisiopatologia , Rejeição de Enxerto/epidemiologia , Sobrevivência de Enxerto , Transplante de Rim , Obtenção de Tecidos e Órgãos/métodos , Adolescente , Adulto , Cadáver , Feminino , Taxa de Filtração Glomerular , Humanos , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo , Doadores de Tecidos , Reino Unido/epidemiologia , Adulto Jovem
5.
Br J Surg ; 104(8): 1010-1019, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28488729

RESUMO

BACKGROUND: Anastomotic leakage is a potential major complication after colorectal surgery. The C-seal was developed to help reduce the clinical leakage rate. It is an intraluminal sheath that is stapled proximal to a colorectal anastomosis, covering it intraluminally and thus preventing intestinal leakage in case of anastomotic dehiscence. The C-seal trial was initiated to evaluate the efficacy of the C-seal in reducing anastomotic leakage in stapled colorectal anastomoses. METHODS: This RCT was performed in 41 hospitals in the Netherlands, Germany, France, Hungary and Spain. Patients undergoing elective surgery with a stapled colorectal anastomosis less than 15 cm from the anal verge were eligible. Included patients were randomized to the C-seal and control groups, stratified for centre, anastomotic height and intention to create a defunctioning stoma. Primary outcome was anastomotic leakage requiring invasive treatment. RESULTS: Between December 2011 and December 2013, 402 patients were included in the trial, 202 in the C-seal group and 200 in the control group. Anastomotic leakage was diagnosed in 31 patients (7·7 per cent), with a 10·4 per cent leak rate in the C-seal group and 5·0 per cent in the control group (P = 0·060). Male sex showed a trend towards a higher leak rate (P = 0·055). Construction of a defunctioning stoma led to a lower leakage rate, although this was not significant (P = 0·095). CONCLUSION: C-seal application in stapled colorectal anastomoses does not reduce anastomotic leakage. Registration number: NTR3080 (http://www.trialregister.nl/trialreg/index.asp).


Assuntos
Implantes Absorvíveis , Fístula Anastomótica/prevenção & controle , Colo/cirurgia , Reto/cirurgia , Idoso , Anastomose Cirúrgica/efeitos adversos , Neoplasias Colorretais/cirurgia , Divertículo do Colo/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Desenho de Prótese , Grampeamento Cirúrgico/efeitos adversos
6.
Br J Anaesth ; 118(5): 720-732, 2017 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-28510740

RESUMO

BACKGROUND: Kidney transplantation is associated with harmful processes affecting the viability of the graft. One of these processes is associated with the phenomenon of ischaemia-reperfusion injury. Anaesthetic conditioning is a widely described strategy to attenuate ischaemia-reperfusion injury. We therefore conducted the Volatile Anaesthetic Protection of Renal Transplants-1 trial, a pilot project evaluating the influence of two anaesthetic regimens, propofol- vs sevoflurane-based anaesthesia, on biochemical and clinical outcomes in living donor kidney transplantation. METHODS: Sixty couples were randomly assigned to the following three groups: PROP (donor and recipient propofol), SEVO (donor and recipient sevoflurane), and PROSE (donor propofol and recipient sevoflurane). The primary outcome was renal injury reflected by urinary biomarkers. The follow-up period was 2 yr. RESULTS: Three couples were excluded, leaving 57 couples for analysis. Concentrations of kidney injury molecule-1 (KIM-1), N -acetyl-ß- d -glucosaminidase (NAG), and heart-type fatty acid binding protein (H-FABP) in the first urine upon reperfusion showed no differences. On day 2, KIM-1 concentrations were higher in SEVO [952.8 (interquartile range 311.8-1893.0) pg mmol -1 ] compared with PROP [301.2 (202.0-504.7) pg mmol -1 ]. This was the same for NAG: SEVO, 1.835 (1.162-2.457) IU mmol -1 vs PROP, 1.078 (0.819-1.713) IU mmol -1 . Concentrations of H-FABP showed no differences. Measured glomerular filtration rate at 3, 6, and 12 months showed no difference. After 2 yr, there was a difference in the acute rejection rate ( P =0.039). Post hoc testing revealed a difference between PROP (35%) and PROSE (5%; P =0.020). The difference between PROP and SEVO (11%) was not significant ( P =0.110). CONCLUSIONS: The SEVO group showed higher urinary KIM-1 and NAG concentrations in living donor kidney transplantation on the second day after transplantation. This was not reflected in inferior graft outcome. CLINICAL TRIAL REGISTRATION: NCT01248871.


Assuntos
Anestesia por Inalação , Anestesia Intravenosa , Anestésicos Inalatórios , Anestésicos Intravenosos , Transplante de Rim/métodos , Doadores Vivos , Propofol , Sevoflurano , Injúria Renal Aguda/etiologia , Adolescente , Adulto , Idoso , Biomarcadores/urina , Proteína 3 Ligante de Ácido Graxo/urina , Feminino , Receptor Celular 1 do Vírus da Hepatite A/metabolismo , Humanos , Terapia de Imunossupressão , Masculino , Pessoa de Meia-Idade , Proteínas de Neoplasias/urina , Projetos Piloto , Estudos Prospectivos , Traumatismo por Reperfusão/prevenção & controle , Adulto Jovem
7.
Am J Transplant ; 16(9): 2545-55, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-26946212

RESUMO

The increased demand for organs has led to the increased usage of "higher risk" kidney and liver grafts. These grafts from donation after circulatory death or expanded criteria donors are more susceptible to preservation injury and have a higher risk of unfavorable outcomes. Dynamic, instead of static, preservation could allow for organ optimization, offering a platform for viability assessment, active organ repair and resuscitation. Ex situ machine perfusion and in situ regional perfusion in the donor are emerging as potential tools to preserve and resuscitate vulnerable grafts. Preclinical findings have ignited clinical organ preservation research that investigates dynamic preservation, its various modes (continuous, preimplantation) and temperatures (hypo-, sub, or normothermic). This review outlines the current status of dynamic preservation of kidney and liver grafts and describes ongoing research and emerging clinical trials.


Assuntos
Sobrevivência de Enxerto , Transplante de Rim/tendências , Transplante de Fígado/tendências , Preservação de Órgãos/métodos , Ressuscitação , Doadores de Tecidos/provisão & distribuição , Animais , Humanos , Soluções para Preservação de Órgãos
8.
Am J Transplant ; 16(5): 1421-40, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-26602379

RESUMO

In an era where we are becoming more reliant on vulnerable kidneys for transplantation from older donors, there is an urgent need to understand how brain death leads to kidney dysfunction and, hence, how this can be prevented. Using a rodent model of hemorrhagic stroke and next-generation proteomic and metabolomic technologies, we aimed to delineate which key cellular processes are perturbed in the kidney after brain death. Pathway analysis of the proteomic signature of kidneys from brain-dead donors revealed large-scale changes in mitochondrial proteins that were associated with altered mitochondrial activity and morphological evidence of mitochondrial injury. We identified an increase in a number of glycolytic proteins and lactate production, suggesting a shift toward anaerobic metabolism. Higher amounts of succinate were found in the brain death group, in conjunction with increased markers of oxidative stress. We characterized the responsiveness of hypoxia inducible factors and found this correlated with post-brain death mean arterial pressures. Brain death leads to metabolic disturbances in the kidney and alterations in mitochondrial function and reactive oxygen species generation. This metabolic disturbance and alteration in mitochondrial function may lead to further cellular injury. Conditioning the brain-dead organ donor by altering metabolism could be a novel approach to ameliorate this brain death-induced kidney injury.


Assuntos
Biomarcadores/análise , Morte Encefálica/fisiopatologia , Rim/fisiopatologia , Metabolômica/métodos , Estresse Oxidativo/genética , Proteômica/métodos , Animais , Masculino , Ratos , Ratos Endogâmicos F344 , Transdução de Sinais
9.
Am J Transplant ; 14(7): 1481-7, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24909061

RESUMO

Hypoxia-inducible factors are the universal cellular oxygen-sensitive transcription factors that activate a number of hypoxia responsive genes, some of which are responsible for protective cellular functions. During organ donation, allografts are exposed to significant periods of hypoxia and ischemia. Exploiting this pathway during donor management and organ preservation could prevent and reduce allograft injury and improve the outcomes of organ transplantation. We review the evidence on this pathway in organ preservation, drawing on experimental studies on donor management and ischemia reperfusion injury focusing on kidney, liver, cardiac and lung transplantation. We review the major technical and experimental challenges in exploring this pathway and suggest potential future avenues for research.


Assuntos
Fator 1 Induzível por Hipóxia/metabolismo , Hipóxia/metabolismo , Preservação de Órgãos , Transplante de Órgãos , Traumatismo por Reperfusão/prevenção & controle , Obtenção de Tecidos e Órgãos , Humanos , Traumatismo por Reperfusão/metabolismo
10.
World J Surg ; 38(8): 1922-8, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24510248

RESUMO

INTRODUCTION: After the introduction of mesh in inguinal hernia repair, the focus to improve surgical technique has changed from recurrence to chronic postoperative inguinal pain. At present, the most common surgical techniques are the Lichtenstein hernioplasty and total extraperitoneal procedure. Both techniques have their own specific disadvantages, with regard to potential nerve damage and the necessity of general anesthesia, respectively. OBJECTIVE: The goal of this study was to evaluate the results of a new technique in which the inguinal nerves are not at risk, and in which general anesthesia is not needed: trans rectus sheath extraperitoneal procedure (TREPP). MATERIAL AND METHODS: Between 2006 and 2010, a total of 1,000 patients were treated for inguinal hernia with TREPP. A questionnaire concerning pain, sensibility changes, patient satisfaction, and recurrence was sent to all patients. RESULTS: The questionnaire was completed by 932 patients. Almost 90% of patients had not experienced any pain since the surgical procedure; 8% of patients reported experiencing some pain, but less than preoperatively; and 2% of patients reported an increase in pain postoperatively. Recurrence occurred in 1 and 3% were unsure about this. Reduced sensibility of the scar, scrotum, and upper leg was reported by 12.4, 1.4, and 1.5%, respectively. Overall, 97.4% of patients were satisfied with the results of the surgical procedure. The time period in which TREPP was performed was not associated with any of the outcome measures. CONCLUSION: TREPP has proven to be a feasible new technique for inguinal hernia repair, with excellent results, justifying a randomized controlled trial in which TREPP should be compared with standard techniques.


Assuntos
Dor Crônica/prevenção & controle , Hérnia Inguinal/cirurgia , Herniorrafia/métodos , Dor Pós-Operatória/prevenção & controle , Peritônio/cirurgia , Reto/cirurgia , Parede Abdominal/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Dor Crônica/etiologia , Feminino , Herniorrafia/instrumentação , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Recidiva , Estudos Retrospectivos , Telas Cirúrgicas , Inquéritos e Questionários
11.
Aust Vet J ; 102(4): 222-225, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38342493

RESUMO

A juvenile grey-headed flying fox (GHFF) (Pteropus poliocephalus) presented to the Australia Zoo Wildlife Hospital after a wildlife carer found the animal hanging on the outside of an aviary. On presentation, the animal was emaciated and moribund with disseminated, multifocal, depigmented and proliferative lesions on the wing membranes and skin of the neck. Histopathology revealed multiple, well-circumscribed proliferative epidermal lesions with intracytoplasmic inclusion bodies. A poxvirus was identified via transmission electron microscopy and next-generation sequencing (NGS). Analysis of sequences obtained demonstrated 99% nucleotide identity to Pteropox virus strain Australia (GenBank KU980965). To the authors' knowledge, this paper describes the first case of Pteropox virus infection in a GHFF.


Assuntos
Quirópteros , Animais , Animais Selvagens , Austrália
12.
Colorectal Dis ; 15(5): e271-5, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23398601

RESUMO

AIM: Reported incidence rates of colorectal anastomotic leakage (AL) vary between 2.5 and 20%. There is little information on late anastomotic leakage (LAL). The aim of this study was to determine the incidence of LAL after colorectal resection. METHOD: All patients undergoing colorectal resection with primary anastomosis between January 2004 and October 2009 at the University Medical Center Groningen were included. LAL was defined as anastomotic leakage diagnosed more than 30 days after surgery. RESULTS: One hundred and forty-one patients were analysed. Indications for surgery included both benign and malignant conditions. The incidence of early anastomotic leakage (EAL) within 30 days after surgery was 13%. The LAL rate was 6%. Eighty-nine per cent of patients with EAL underwent relaparotomy compared with 44% for LAL (P = 0.02). CONCLUSION: One-third of all anastomotic leakages were diagnosed more than 30 days after surgery. Of these, 44% underwent relaparotomy. Patients with leakage diagnosed within 30 days after surgery were more likely to undergo relaparotomy. LAL is a significant problem after colorectal surgery.


Assuntos
Fístula Anastomótica/etiologia , Carcinoma/cirurgia , Colo/cirurgia , Neoplasias Colorretais/cirurgia , Endometriose/cirurgia , Neoplasias Ovarianas/cirurgia , Reto/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Anastomose Cirúrgica/efeitos adversos , Fístula Anastomótica/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo , Adulto Jovem
13.
Am J Transplant ; 12(7): 1824-30, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22578189

RESUMO

Static cold storage (CS) is the most widely used organ preservation method for deceased donor kidney grafts but there is increasing evidence that hypothermic machine perfusion (MP) may result in better outcome after transplantation. We performed an economic evaluation of MP versus CS alongside a multicenter RCT investigating short- and long-term cost-effectiveness. Three hundred thirty-six consecutive kidney pairs were included, one of which was assigned to MP and one to CS. The economic evaluation combined the short-term results based on the empirical data from the study with a Markov model with a 10-year time horizon. Direct medical costs of hospital stay, dialysis treatment, and complications were included. Data regarding long-term survival, quality of life, and long-term costs were derived from literature. The short-term evaluation showed that MP reduced the risk of delayed graft function and graft failure at lower costs than CS. The Markov model revealed cost savings of $86,750 per life-year gained in favor of MP. The corresponding incremental cost-utility ratio was minus $496,223 per quality-adjusted life-year (QALY) gained. We conclude that life-years and QALYs can be gained while reducing costs at the same time, when kidneys are preserved by MP instead of CS.


Assuntos
Análise Custo-Benefício , Criopreservação/economia , Hipotermia Induzida , Transplante de Rim , Preservação de Órgãos/métodos , Humanos , Cadeias de Markov , Preservação de Órgãos/economia
14.
Am J Transplant ; 12(3): 660-8, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22176838

RESUMO

Local renal complement activation by the donor kidney plays an important role in the pathogenesis of renal injury inherent to kidney transplantation. Contradictory results were reported about the protective effects of the donor C3F allotype on renal allograft outcome. We investigated the influence of the donor C3F allotype on renal transplant outcome, taking all different donor types into account. C3 allotypes of 1265 donor-recipient pairs were determined and divided into four genotypic groups according to the C3F allotype of the donor and the recipient. The four genotypic groups were analyzed for association with primary nonfunction (PNF), delayed graft function, acute rejection, death-censored graft survival and patient survival. Considering all donor types, multivariable analysis found no association of the donor C3F allotype with renal allograft outcome. Also, for living and deceased brain-dead donors, no association with allograft outcome was found. Post hoc subgroup analysis within deceased cardiac dead (DCD) donors revealed an independent protective association of donor C3F allotype with PNF. This study shows that the donor C3F allotype is not associated with renal allograft outcome after kidney transplantation. Subgroup analysis within DCD donors revealed an independent protective association of the donor C3F allotype with PNF, which is preliminary and warrants further validation.


Assuntos
Complemento C3/genética , Rejeição de Enxerto/genética , Parada Cardíaca , Transplante de Rim/mortalidade , Polimorfismo Genético/genética , Doadores de Tecidos , Adulto , DNA/genética , Função Retardada do Enxerto , Feminino , Genótipo , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Fatores de Risco , Taxa de Sobrevida , Transplante Homólogo , Resultado do Tratamento
15.
Surg Endosc ; 26(1): 79-85, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21792718

RESUMO

BACKGROUND: Correct assessment of biliary anatomy can be documented by photographs showing the "critical view of safety" (CVS) but also by intraoperative cholangiography (IOC). METHODS: Photographs of the CVS and IOC images for 63 patients were presented to three expert observers in a random and blinded fashion. The observers answered questions pertaining to whether the biliary anatomy had been conclusively documented. RESULTS: The CVS photographs were judged to be "conclusive" in 27%, "probable" in 35%, and "inconclusive" in 38% of the cases. The IOC images performed better and were judged to be "conclusive" in 57%, "probable" in 25%, and "inconclusive" in 18% of the cases (P < 0.001 compared with the photographs). The observers indicated that they would feel comfortable transecting the cystic duct based on the CVS photographs in 52% of the cases and based on the IOC images in 73% of the cases (P = 0.004). The interobserver agreement was moderate for both methods (kappa values, 0.4-0.5). For patients with a history of cholecystitis, both the CVS photographs and the IOC images were less frequently judged to be sufficient for transection of the cystic duct (P = 0.006 and 0.017, respectively). CONCLUSION: In this series, IOC was superior to photographs of the CVS for documentation of the biliary anatomy during laparoscopic cholecystectomy. However, both methods were judged to be conclusive only for a limited proportion of patients, especially in the case of cholecystitis. This study highlights that documenting assessment of the biliary anatomy is not as straightforward as it seems and that protocols are necessary, especially if the images may be used for medicolegal purposes. Documentation of the biliary anatomy should be addressed during training courses for laparoscopic surgery.


Assuntos
Colangiografia/normas , Colecistectomia Laparoscópica/métodos , Ducto Cístico/anatomia & histologia , Documentação/normas , Fotografação/normas , Colangite/patologia , Colangite/cirurgia , Colecistite/patologia , Colecistite/cirurgia , Ducto Colédoco/anatomia & histologia , Ducto Colédoco/lesões , Ducto Cístico/diagnóstico por imagem , Ducto Cístico/cirurgia , Cálculos Biliares/cirurgia , Humanos , Cuidados Intraoperatórios/métodos , Cuidados Intraoperatórios/normas , Complicações Intraoperatórias/prevenção & controle , Variações Dependentes do Observador , Pancreatite/cirurgia , Estudos Retrospectivos
16.
Am J Transplant ; 11(10): 2214-20, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21834917

RESUMO

Vascular renal resistance (RR) during hypothermic machine perfusion (HMP) is frequently used in kidney graft quality assessment. However, the association between RR and outcome has never been prospectively validated. Prospectively collected RR values of 302 machine-perfused deceased donor kidneys of all types (standard and extended criteria donor kidneys and kidneys donated after cardiac death), transplanted without prior knowledge of these RR values, were studied. In this cohort, we determined the association between RR and delayed graft function (DGF) and 1-year graft survival. The RR (mmHg/mL/min) at the end of HMP was an independent risk factor for DGF (odds ratio 38.1 [1.56-934]; p = 0.026) [corrected] but the predictive value of RR was low, reflected by a c-statistic of the receiver operator characteristic curve of 0.58. The RR was also found to be an independent risk factor for 1-year graft failure (hazard ratio 12.33 [1.11-136.85]; p = 0.004). Determinants of transplant outcome are multifactorial in nature and this study identifies RR as an additional parameter to take into account when evaluating graft quality and estimating the likelihood of successful outcome. However, RR as a stand-alone quality assessment tool cannot be used to predict outcome with sufficient precision.


Assuntos
Hipotermia Induzida , Rim , Doadores de Tecidos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Humanos , Transplante de Rim , Pessoa de Meia-Idade , Perfusão , Prognóstico , Adulto Jovem
17.
Am J Transplant ; 11(10): 2173-80, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21831156

RESUMO

Female kidneys and kidneys from small donors have been suggested to perform worse after kidney transplantation. Here, we evaluate the impact of gender and body dimensions on posttransplantation GFR in living donor transplantation. Two hundred and ninety-three donor-recipient pairs, who were transplanted at our center were evaluated. All pairs had detailed renal function measurement ((125) I-iothalamate and (131) I-hippuran) 4 months predonation in the donor and 2.5 months posttransplantation in donor and recipient. For 88 pairs, 5 years of recipient follow-up was available. Delta GFR was calculated as (recipient GFR-donor single kidney GFR). Recipients of both male and female kidneys had similar renal function at early and long term after transplantation. Male recipients had higher ERPF, ΔGFR and ΔERPF at both time points. Kidneys of donors smaller than their recipient had higher ΔGFR and ΔERPF than kidneys of larger donors at both time points (p < 0.05). In multivariate analysis, ΔGFR was predicted by donor/recipient BSA-ratio together with transplantation related factors (R(2) 0.19), irrespective of donor and recipient gender. In conclusion, in living donor transplantation, female kidneys perform as well as male donor kidneys. Kidneys adapt to the recipient's body size and demands, independent of gender, without detrimental effects in renal function and outcome up to mid-long term.


Assuntos
Tamanho Corporal , Transplante de Rim , Rim/fisiopatologia , Doadores Vivos , Adulto , Feminino , Taxa de Filtração Glomerular , Humanos , Masculino , Pessoa de Meia-Idade
18.
World J Surg ; 35(6): 1235-41; discussion 1242-3, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21445669

RESUMO

BACKGROUND: This study aimed to identify safety measures practiced by Dutch surgeons during laparoscopic cholecystectomy. METHOD: An electronic questionnaire was sent to all members of the Dutch Society of Surgery with a registered e-mail address. RESULTS: The response rate was 40.4% and 453 responses were analyzed. The distribution of the respondents with regard to type of hospital was similar to that in the general population of Dutch surgeons. The critical view of safety (CVS) technique is used by 97.6% of the surgeons. It is documented by 92.6%, mostly in the operation report (80.0%), but often augmented by photography (42.7%) or video (30.2%). If the CVS is not obtained, 50.9% of surgeons convert to the open approach, 39.1% continue laparoscopically, and 10.0% perform additional imaging studies. Of Dutch surgeons, 53.2% never perform intraoperative cholangiography (IOC), 41.3% perform it incidentally, and only 2.6% perform it routinely. A total of 105 bile duct injuries (BDIs) were reported in 14,387 cholecystectomies (0.73%). The self-reported major BDI rate (involving the common bile duct) was 0.13%, but these figures need to be confirmed in other studies. CONCLUSION: The CVS approach in laparoscopic cholecystectomy is embraced by virtually all Dutch surgeons. The course of action when CVS is not obtained varies. IOC seems to be an endangered skill as over half the Dutch surgeons never perform it and the rest perform it only incidentally.


Assuntos
Colecistectomia Laparoscópica/métodos , Competência Clínica , Ducto Colédoco/lesões , Complicações Intraoperatórias/epidemiologia , Monitorização Intraoperatória/métodos , Colangiografia/métodos , Colecistectomia Laparoscópica/efeitos adversos , Estudos Transversais , Feminino , Humanos , Complicações Intraoperatórias/diagnóstico , Masculino , Países Baixos , Padrões de Prática Médica , Medição de Risco , Gestão da Segurança , Inquéritos e Questionários , Resultado do Tratamento
19.
Am J Transplant ; 10(3): 477-89, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20055812

RESUMO

Because the vagus nerve is implicated in control of inflammation, we investigated if brain death (BD) causes impairment of the parasympathetic nervous system, thereby contributing to inflammation. BD was induced in rats. Anaesthetised ventilated rats (NBD) served as control. Heart rate variability (HRV) was assessed by ECG. The vagus nerve was electrically stimulated (BD + STIM) during BD. Intestine, kidney, heart and liver were recovered after 6 hours. Affymetrix chip-analysis was performed on intestinal RNA. Quantitative PCR was performed on all organs. Serum was collected to assess TNFalpha concentrations. Renal transplantations were performed to address the influence of vagus nerve stimulation on graft outcome. HRV was significantly lower in BD animals. Vagus nerve stimulation inhibited the increase in serum TNFalpha concentrations and resulted in down-regulation of a multiplicity of pro-inflammatory genes in intestinal tissue. In renal tissue vagal stimulation significantly decreased the expression of E-selectin, IL1beta and ITGA6. Renal function was significantly better in recipients that received a graft from a BD + STIM donor. Our study demonstrates impairment of the parasympathetic nervous system during BD and inhibition of serum TNFalpha through vagal stimulation. Vagus nerve stimulation variably affected gene expression in donor organs and improved renal function in recipients.


Assuntos
Morte Encefálica/diagnóstico , Inflamação/patologia , Estimulação do Nervo Vago/métodos , Anestesia , Animais , Regulação para Baixo , Eletrocardiografia/métodos , Frequência Cardíaca , Mucosa Intestinal/metabolismo , Masculino , Ratos , Ratos Endogâmicos F344 , Ratos Endogâmicos Lew , Fator de Necrose Tumoral alfa/sangue , Nervo Vago/patologia
20.
Br J Surg ; 97(7): 1079-86, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20632275

RESUMO

BACKGROUND: Surgery for chronic pancreatitis is indicated for intractable pain or the treatment of complications. This retrospective cohort study evaluated the applicability of pain coping and quality-of-life (QOL) scoring in patients with chronic pancreatitis. METHODS: Between 1995 and 2008, 155 patients underwent surgery for chronic pancreatitis in two Dutch university hospitals. Medical charts were reviewed, and QOL and coping with pain were assessed by two validated questionnaires. RESULTS: Median follow-up was 5.6 years. The aetiology was alcohol related in 48.3 per cent. Some 111 resections and 46 drainage procedures were performed. Fifty-seven patients had major complications and the hospital mortality rate was 1.3 per cent. After surgery the number of patients needing analgesics was reduced (P < 0.001). Alcohol consumption significantly reduced pain coping mechanisms (P = 0.032). Overall, QOL remained poor after surgery. Scores on three dimensions of the QOL questionnaire were significantly better after drainage than after resection procedures. CONCLUSION: In general, QOL after surgery for chronic pancreatitis remains poor, owing to pre-existing lifestyle and co-morbidity. Patients selected for a pancreatic duct drainage procedure have a better postoperative QOL than those undergoing resectional procedures. Alcohol consumption is associated with poor ability to cope with pain after surgery and should be discouraged.


Assuntos
Dor Intratável/psicologia , Pancreatite Crônica/cirurgia , Complicações Pós-Operatórias/etiologia , Qualidade de Vida , Adaptação Psicológica , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pancreatite Crônica/psicologia , Satisfação do Paciente , Estudos Retrospectivos
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