RESUMEN
BACKGROUND: Workplace microaggressions are a longstanding but understudied problem in the surgical specialties. Microaggressions in health care are linked to negative emotional and physical health outcomes and can contribute to burnout and suboptimal delivery of patient care. They also negatively impact recruitment, retention, and promotion, which often results in attrition. Further attrition at the time of an impending surgical workforce shortage risks compromising the delivery of health care to the diverse US population, and may jeopardize the financial stability of health care organizations. To date, studies on microaggressions have consisted of small focus groups comprising women faculty or trainees at a single institution. To our knowledge, there are no large, multiorganizational, gender-inclusive studies on microaggressions experienced by practicing surgeons. OBJECTIVE: This study aimed to examine the demographic and occupational characteristics of surgeons who do and do not report experiencing workplace microaggressions and whether these experiences would influence a decision to pursue a career in surgery again. STUDY DESIGN: We developed and internally validated a web-based survey to assess surgeon experiences with microaggressions and the associated sequelae. The survey was distributed through a convenience sample of 9 American College of Surgeons online Communities from November 2022 to January 2023. All American College of Surgeons Communities comprised members who had completed residency or fellowship training and had experience in the surgical workforce. The survey contained demographic, occupational, and validated microaggression items. Analyses include descriptive and chi-square statistics, t tests, and bivariable and multivariable logistic regression. RESULTS: The survey was completed by 377 American College of Surgeons members with the following characteristics: working as a surgeon (80.9%), non-Hispanic White (71.8%), general surgeons (71.0%), aged ≥50 years (67.4%), fellowship-trained (61.0%), and women (58.4%). A total of 254 (67.4%) respondents reported experiencing microaggressions. Younger surgeons (P=.002), women (P<.001), and fellowship-trained surgeons (P=.001) were more likely to report experiencing microaggressions than their counterparts. Surgeons working in academic medical centers or health care systems with teaching responsibilities were more likely to experience microaggressions than those in private practice (P<.01). Surgeons currently working as a surgeon or those who are unable to work reported more experience with microaggressions (P=.003). There was no difference in microaggressions experienced among respondents based on surgical specialty, race/ethnicity, or whether the surgeons reported having a disability. In multivariable logistic regression, women had higher odds of experiencing microaggressions compared with men (adjusted odds ratio, 15.9; 95% confidence interval, 7.7-32.8), and surgeons in private practice had significantly lower odds of experiencing microaggressions compared with surgeons in academic medicine (adjusted odds ratio, 0.3; 95% confidence interval, 0.1-0.8) or in health care systems with teaching responsibilities (adjusted odds ratio, 0.2; 95% confidence interval, 0.1-0.6). Among surgeons responding to an online survey, respondents reporting microaggressions were less likely to say that they would choose a career in surgery again (P<.001). CONCLUSION: Surgeons reporting experience with microaggressions represent a diverse range of surgical specialties and subspecialties. With the continued expansion of surgeon gender and race/ethnicity representation, deliberate efforts to address and eliminate workplace microaggressions could have broad implications for improving recruitment and retention of surgeons.
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Agresión , Cirujanos , Lugar de Trabajo , Humanos , Femenino , Adulto , Cirujanos/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Estados Unidos , Encuestas y Cuestionarios , Selección de Profesión , Sociedades MédicasRESUMEN
BACKGROUND: Abdominal wall surgical site complications following renal transplantation can be challenging to manage. A sub-group of these recipients will require operative management or advanced wound care such as negative pressure wound therapy (NPWT). The aim of this study was to determine if there were any preoperative, intraoperative and postoperative characteristics in our recipients' cohort which were associated with the requirement for such interventions. METHODS: A retrospective review of medical records was performed for all recipients who sustained abdominal wall complications following renal transplantation at our centre from 2006 to 2016. RESULTS: A total of 64/828 recipients (7.7%) had abdominal wall complications. The mean weight for these patients was 84.9 kg (±16.6 kg) and the mean body mass index was 30.2 (±5.1). Forty-five recipients (70%) had a superficial wound dehiscence while nine (14%) had a complete fascial dehiscence. Operative intervention was required in 13/64 patients (20%) and was more likely to be required in the presence of a fascial dehiscence (9/9, 100%) or a wound collection (10/31, 32%) (p < 0.001, p = 0.021). NPWT was used in 17/64 patients (27%) and was more commonly required in patients with diabetes mellitus (10/24, 42%), a complete fascial dehiscence (5/9, 56%) or evidence of infection (16/44, 36%) (p = 0.039, p = 0.034, p = 0.008). CONCLUSIONS: The requirement for either operative management or the use of NPWT in the management of abdominal wall complications following renal transplantation in our experience was more common in recipients with diabetes mellitus, and in the setting of either complete fascial dehiscence, abdominal wall wound collections and/ or infection.
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Pared Abdominal/cirugía , Trasplante de Riñón/efectos adversos , Terapia de Presión Negativa para Heridas/métodos , Complicaciones Posoperatorias/epidemiología , Adulto , Anciano , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Dehiscencia de la Herida Operatoria/etiología , Resultado del TratamientoRESUMEN
Acute kidney injury (AKI) after liver transplantation (LT) is a common event, but its pathogenesis remains unclear. The aim of this prospective study is to investigate the potential relationship between postreperfusion gene expression, serum mediators, and the onset of AKI after LT. Sixty-five consecutive patients undergoing LT were included in the study. Reverse transcription polymerase chain reaction (PCR) was performed on liver biopsies. Gene expression of 23 genes involved in ischemia/reperfusion injury (IRI) was evaluated. The serum concentrations of endothelin (ET)-1 and inflammatory cytokines were analyzed. AKI after LT developed in 21 (32%) recipients (AKI group). Reverse transcription PCR of reperfusion biopsy in the AKI group showed higher expression of several genes involved in IRI compared with the non-AKI group. Fold changes in the gene expression of ET-1, interleukin (IL) 18, and tumor necrosis factor α (TNF-α) were associated with creatinine peak value. AKI patients also had significantly higher ET-1, IL18, and TNF-α postoperative serum levels. Multivariate analysis showed that ET-1 (odds ratio [OR], 16.7; 95% confidence interval [CI], 3.34-83.42; P = 0.001) and IL18 (OR, 5.27; 95% CI, 0.99-27.82, P = 0.048) serum levels on postoperative day 1 were independently predictive of AKI. Receiver operating characteristic analysis demonstrated that the combination of biomarkers ET-1+IL18 was highly predictive of AKI (area under the receiver operating characteristic curve, 0.91; 95% CI, 0.83-0.99). Early allograft dysfunction and chronic kidney disease stage ≥ 2 occurred more frequently in AKI patients. These results suggest that the graft itself, rather than intraoperative hemodynamic instability, plays a main role in AKI after LT. These data may have mechanistic and diagnostic implications for AKI after LT. Liver Transplantation 24 922-931 2018 AASLD.
Asunto(s)
Lesión Renal Aguda/diagnóstico , Aloinjertos/patología , Trasplante de Hígado/efectos adversos , Hígado/patología , Complicaciones Posoperatorias/diagnóstico , Daño por Reperfusión/complicaciones , Lesión Renal Aguda/sangre , Lesión Renal Aguda/etiología , Adulto , Anciano , Biomarcadores/sangre , Biomarcadores/metabolismo , Biopsia , Creatinina/sangre , Endotelina-1/sangre , Endotelina-1/metabolismo , Femenino , Perfilación de la Expresión Génica , Rechazo de Injerto/patología , Humanos , Interleucina-18/sangre , Interleucina-18/metabolismo , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/sangre , Complicaciones Posoperatorias/etiología , Estudios Prospectivos , Factores de Tiempo , Factor de Necrosis Tumoral alfa/sangre , Factor de Necrosis Tumoral alfa/metabolismoRESUMEN
Despite the growing data supporting the role of microcirculation in regulating liver function, little of this knowledge has been translated into clinical practice. The aim of this study is to quantify hepatic microcirculation in vivo using sidestream dark field (SDF) imaging and correlate these findings with hepatic blood flow, hemodynamic parameters, and soluble mediators. Postreperfusion hepatic microcirculation was assessed using SDF imaging. Hepatic microcirculation measurements included functional sinusoidal density (cm/cm2 ), sinusoidal diameter (µm), red blood cell velocity (µm/second), volumetric blood flow (pl/second), and flow heterogeneity (FH) index. The serum concentrations of endothelin 1 (ET-1) and other inflammatory markers were analyzed with Luminex technology. Portal venous and hepatic artery flows were measured using a flowmeter. Twenty-eight patients undergoing cadaveric liver transplantations have been included in this study. Early allograft dysfunction (EAD) occurred in 7 (25%) patients and was associated with microcirculatory dysfunction. Low arterial and portal flow, high dose of inotropes, cold ischemia time, steatosis, and high ET-1 levels were all associated with impaired microcirculation. The time interval between portal venous and hepatic arterial reperfusion significantly correlated with the changes of the liver grafts' microcirculation. EAD patients tended to have higher serum levels of ET-1 on postoperative days 1, 2, 5, and 7 (all P < 0.01). Serum levels of ET-1 correlated significantly with microcirculation parameters. In conclusion, postreperfusion hepatic microcirculation is a determinant of organ dysfunction after liver reperfusion and could be used to identify very early patients at risk of EAD. Liver Transplantation 23 527-536 2017 AASLD.
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Diagnóstico por Imagen/métodos , Enfermedad Hepática en Estado Terminal/cirugía , Hemodinámica , Circulación Hepática , Trasplante de Hígado/efectos adversos , Microcirculación , Disfunción Primaria del Injerto/fisiopatología , Adulto , Anciano , Aloinjertos/irrigación sanguínea , Biomarcadores/sangre , Velocidad del Flujo Sanguíneo , Endotelina-1/sangre , Femenino , Arteria Hepática/fisiopatología , Humanos , Hígado/irrigación sanguínea , Hígado/diagnóstico por imagen , Masculino , Persona de Mediana Edad , Vena Porta/fisiopatología , Disfunción Primaria del Injerto/sangre , Disfunción Primaria del Injerto/epidemiología , Disfunción Primaria del Injerto/etiología , Reperfusión/efectos adversos , Índice de Severidad de la EnfermedadRESUMEN
Hepatic artery stenosis (HAS) is thought to predispose patients to biliary complications secondary to ischemic injury. Despite this, the clinical significance of HAS remains poorly defined. The aims of this study were to determine the prevalence and outcomes of HAS and to define which patients might benefit from endovascular treatment. From a prospective database of 662 adult patients undergoing liver transplantation between 2000 and 2011, we identified 54 patients who developed HAS. HAS was defined as any stenosis > 70% that was seen during multidetector computed tomographic angiography (MDCTA) or digital subtraction angiography. The benefit of endovascular therapy was evaluated with propensity score matching. New biliary complications occurred in 17 patients (31.4%), and 23 of the 54 study patients with HAS received endovascular treatment. Among the propensity score-matched patients, the biliary stricture-free survival time was significantly longer for those who received endovascular therapy (P = 0.03). An incidental diagnosis (P = 0.07) and a time from transplantation > 6 months (P = 0.021) were associated with a reduced risk of developing biliary stricture. Patients with symptomatic HAS who received treatment had better biliary stricture-free survival than patients who were treated conservatively, although no significant difference was recorded (P = 0.11). No patient with asymptomatic HAS and normal liver function tests developed biliary strictures. In conclusion, HAS intervention was associated with improved biliary stricture-free survival. In patients with late-onset HAS (≥6 months) and asymptomatic patients, endovascular treatment is not warranted.
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Constricción Patológica/terapia , Procedimientos Endovasculares , Arteria Hepática/fisiopatología , Hígado/fisiología , Adulto , Angiografía de Substracción Digital , Conductos Biliares/fisiopatología , Constricción Patológica/etiología , Bases de Datos Factuales , Femenino , Humanos , Isquemia/patología , Trasplante de Hígado/efectos adversos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Tiempo , Tomografía Computarizada por Rayos XRESUMEN
Encapsulating peritoneal sclerosis (EPS) is a rare complication of peritoneal dialysis (PD) that carries a high morbidity and mortality. The 'two hit theory' suggests that long term deterioration of the peritoneum combined with intraperitoneal inflammation is needed in the pathogenesis of EPS. For unclear reasons, post transplantation EPS is being increasingly reported in patients previously on PD. To date, there is no proven effective therapy with an absence of randomised controlled trials. Individual case reports and small case series have reported on the use of tamoxifen and corticosteroids for medical management of EPS. The use of everolimus has been reported in a single case, and never in the setting of renal transplantation. Here, we present the first case of post-transplant encapsulating peritoneal sclerosis treated successfully with a combination of everolimus, tamoxifen, low dose corticosteroid and surgery.
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Inmunosupresores/uso terapéutico , Trasplante de Riñón , Fibrosis Peritoneal/tratamiento farmacológico , Complicaciones Posoperatorias/tratamiento farmacológico , Sirolimus/análogos & derivados , Adulto , Terapia Combinada , Everolimus , Humanos , Masculino , Fibrosis Peritoneal/cirugía , Complicaciones Posoperatorias/cirugía , Sirolimus/uso terapéuticoRESUMEN
OBJECTIVES: To report the early outcomes of the initial selection and use of donation after cardiac death (DCD) donor livers for transplantation in New South Wales, following a guidelines implementation process. DESIGN AND SETTING: Review of database and medical records from the Australian National Liver Transplantation Unit and the NSW Organ and T2 Donation Service for DCD activity including organ donor offers and retrievals, from 1 July 2007 to 31 December 2010. MAIN OUTCOME MEASURES: Acceptance and utilisation rates of livers from DCD donors, and patient and graft outcomes after liver transplantation. RESULTS: Of the potential 84 DCD donor offers, 45 were declined, and 15 of the 39 attempted retrievals provided livers for transplantation. The most common reason for non-retrieval of the liver was the time to declaration of death exceeding 30 minutes after withdrawal of treatment (14 donors), followed by abnormality in the donor liver (eight donors). Data on early outcomes for liver transplant recipients showed a median peak aspartate aminotransferase of 3667 U/L (range, 919-11 264 U/L), but no delayed graft function. Four patients developed biliary complications (two within 3 months and two later). Patient and graft survival were 100% at a median follow-up of 15 months. CONCLUSIONS: As a result of the re-establishment of multiorgan donation through the DCD pathway, 15 (18%) of the selected DCD donors provided livers for transplantation. Patient and graft survival rates were excellent, and the rate of intra- and postoperative complications was acceptable. Hence, the selective transplantation of DCD donor liver allografts will continue to be pursued and the outcomes followed.
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Muerte , Selección de Donante/métodos , Enfermedad Hepática en Estado Terminal/cirugía , Trasplante de Hígado/métodos , Adolescente , Adulto , Niño , Preescolar , Selección de Donante/organización & administración , Selección de Donante/normas , Enfermedad Hepática en Estado Terminal/mortalidad , Estudios de Seguimiento , Supervivencia de Injerto , Humanos , Trasplante de Hígado/mortalidad , Persona de Mediana Edad , Nueva Gales del Sur , Selección de Paciente , Complicaciones Posoperatorias , Guías de Práctica Clínica como Asunto , Resultado del Tratamiento , Adulto JovenRESUMEN
OBJECTIVES: To examine whether incidence of colorectal malignancy is increased in Australasian liver transplant recipients compared with the general population of Australia, and to assess the characteristics and outcomes of colorectal malignancy in this patient group. DESIGN, SETTING AND PATIENTS: Data on patients who underwent orthotopic liver transplantation (OLTx) and had a diagnosis of de-novo colorectal malignancy after transplantation during the period 1985-2011 were obtained from the Australia and New Zealand Liver Transplant Registry, and these data were compared with colorectal malignancy data from the Australian Institute of Health and Welfare. MAIN OUTCOME MEASURES: Time from OLTx to diagnosis of colorectal malignancy, stage of colorectal malignancy at diagnosis, patient survival, and standardised incidence ratio (SIR) for colorectal malignancy. RESULTS: Forty-eight of 3735 recipients (1.3%) were diagnosed with colorectal malignancy at a median of 7.3 years after OLTx. More advanced colorectal malignancy (regional or metastatic disease) was evident at diagnosis in 20 of the 48 patients; these patients tended to be younger than patients with less advanced malignancy (P = 0.01) and diagnosed sooner after OLTx (P = 0.005). Despite treatment predominantly with surgery, 19 of the 48 patients died from the malignancy. The overall SIR for colorectal malignancy liver transplant recipients compared with the general population of Australia was 2.80 (95% CI, 2.06-3.71). CONCLUSIONS: The incidence of colorectal malignancy is increased in liver transplant recipients in comparison with the general population. Of concern is the tendency for advanced malignancy to be diagnosed in younger patients. These data highlight the importance of considering whether specific guidelines for colorectal malignancy screening in the Australasian adult liver transplant population are needed.
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Neoplasias Colorrectales/etiología , Trasplante de Hígado/efectos adversos , Adolescente , Adulto , Anciano , Australia/epidemiología , Niño , Neoplasias Colorrectales/epidemiología , Neoplasias Colorrectales/mortalidad , Femenino , Humanos , Incidencia , Trasplante de Hígado/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Nueva Zelanda/epidemiología , Sistema de Registros , Factores de Riesgo , Adulto JovenRESUMEN
BACKGROUND AND AIM: Donor liver steatosis can impact on liver allograft outcomes. The aim of the present study was to comprehensively report on the impact of type and grade of donor steatosis, as well as donor and recipient factors, including the reported Donor Risk Index (DRI), on liver allograft outcomes. METHODS: A review of unit data for all adult liver transplant procedures from 2001 to 2007, as well as donor offers. Donor liver biopsies were regraded for steatosis by an experienced histopathologist. RESULTS: Steatosis was detected in 184/255 (72%) of biopsies, of which 114 (62%) had microvesicular steatosis (MiS; 68 mild, 22 moderate, 24 severe) and 70 (38%) macrovesicular steatosis (MaS; 59 mild, 7 moderate, 4 severe). The majority (66/70, 94%) of biopsies with MaS also contained MiS. Allograft steatosis was associated with increasing donor body mass index (P = 0.000), plus donor male sex (P < 0.05). Primary non function (P = 0.002), early renal failure (P = 0.040), and requirement for retransplantation (P = 0.012) were associated only with severe MaS. Early biliary complications were associated with moderate MaS (P = 0.039). Only severe MaS was significantly associated with inferior allograft survival at 3 months (relative risk = 12.09 [8.75-19.05], P = 0.000) and 1 year (P = 0.000). CONCLUSIONS: MiS is a common finding and frequently coexists with MaS on liver allograft biopsy, while isolated MaS is uncommon. Only the presence of moderate to severe MaS is associated with inferior early allograft outcomes. The impact of severe MaS on allograft survival appears greater than other donor factors, including the calculated DRI.
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Hígado Graso/complicaciones , Hígado Graso/patología , Supervivencia de Injerto , Trasplante de Hígado/fisiología , Insuficiencia Renal/etiología , Adolescente , Adulto , Anciano , Análisis de Varianza , Índice de Masa Corporal , Hígado Graso/clasificación , Femenino , Supervivencia de Injerto/fisiología , Humanos , Estimación de Kaplan-Meier , Trasplante de Hígado/efectos adversos , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Reoperación , Índice de Severidad de la Enfermedad , Factores Sexuales , Adulto JovenRESUMEN
Complete hematopoietic chimerism and tolerance of a liver allograft from a deceased male donor developed in a 9-year-old girl, with no evidence of graft-versus-host disease 17 months after transplantation. The tolerance was preceded by a period of severe hemolysis, reflecting partial chimerism that was refractory to standard therapies. The hemolysis resolved after the gradual withdrawal of all immunosuppressive therapy.
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Hemólisis/inmunología , Trasplante de Hígado/inmunología , Quimera por Trasplante/inmunología , Tolerancia al Trasplante/inmunología , Niño , Femenino , Enfermedad Injerto contra Huésped , Humanos , Terapia de Inmunosupresión , Fallo Hepático Agudo/cirugía , Linfocitos T/inmunología , Tolerancia al Trasplante/genética , Trasplante HomólogoRESUMEN
BACKGROUND: Biliary complications are the most common complications of donation after circulatory death (DCD) liver transplantation and the international experience with DCD transplants suggests increased rates of biliary complications compared to donation after brain death transplants. Therefore, it is important to understand factors that are associated with the development of biliary complications within the Australian DCD context in order to inform future practice. The aim of this study is to determine the incidence of biliary complications after DCD liver transplantation at the Australian National Liver Transplantation Unit and identify factors associated with this outcome. METHODS: A retrospective analysis of all adult DCD liver transplants at the Australian National Liver Transplantation Unit from 2007 to 2015 was undertaken. The primary outcome measure was the incidence of biliary complications and was censored on 31 December 2016. Recipients were then stratified into groups based on the development of biliary complications and risk factor analysis was performed. RESULTS: Biliary complications occurred in 35% of DCD transplants, including seven anastomotic strictures and 10 non-anastomotic strictures. Higher donor risk index scores (P = 0.03), post-transplant portal vein complications (P = 0.042) and peak gamma-glutamyl transferase levels within 7 days post-transplant (P = 0.047) were associated with biliary complications. CONCLUSION: Findings from this study demonstrate that biliary complications remain common in DCD liver recipients. Recipients who developed a biliary complication tended to have higher donor risk index, elevated peak gamma-glutamyl transferase levels within 7 days post-transplant or a portal vein complication. The presence of any of these factors should prompt close monitoring for post-transplant biliary complications.
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Trasplante de Hígado , Obtención de Tejidos y Órganos , Adulto , Australia/epidemiología , Supervivencia de Injerto , Humanos , Trasplante de Hígado/efectos adversos , Estudios Retrospectivos , Donantes de TejidosRESUMEN
INTRODUCTION: Prosthetic arteriovenous grafts (AVGs) in the lower extremity represent a useful alternative for hemodialysis vascular access when all upper limb access sites have been used or in some patients when freedom of both hands is necessary during dialysis. Reported complications include an increased risk of infection and limb ischemia. This study evaluated our experience with the patency outcomes and complication rates of polytetrafluoroethylene (PTFE) AVGs placed in the thigh. METHODS: A retrospective outcomes analysis was performed of all femoral AVGs inserted between January 1992 and July 2007. Data were obtained by review of medical records for patient demographics, comorbidities, and AVG-related outcomes. Patency, complication rates, and risk factors for infection were determined. RESULTS: A total of 153 prosthetic AVGs were placed in 127 patients (63 men). Mean patient age was 52.7 ± 16.3 years. Median follow-up was 25 months (range, 1-169 months). The most common underlying renal disease was glomerulonephritis in 27 (21%). Hypertension and coronary artery disease were common comorbidities, respectively, in 49 (39%) and 23 patients (18%). The primary and secondary AVG patency rates at 12 months were 53.9% and 75.3%, respectively, and 2- and 5-year patency rates were, respectively, 39.6% and 19.3% (primary) and 63.8% and 50.6% (secondary). The mean AVG survival for all cases was 31.6 months (range, 0-149 months). Surgical thrombectomy was required in 82 (54%), and 22 AVGs (14%) required surgical revision for stenosis. Infection occurred in 41 AVGs (27%), and limb ischemia occurred in 2 (1.3%). Statistical analysis did not reveal a significant risk factor for infection. CONCLUSIONS: Femoral AVGs are a suitable alternative to upper limb vascular access, with acceptable primary and secondary patency rates. Infection occurred in approximately one-quarter of cases, whereas steal was uncommon.
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Derivación Arteriovenosa Quirúrgica , Prótesis Vascular , Infecciones Relacionadas con Prótesis/etiología , Diálisis Renal , Grado de Desobstrucción Vascular , Derivación Arteriovenosa Quirúrgica/efectos adversos , Prótesis Vascular/efectos adversos , Femenino , Arteria Femoral , Vena Femoral , Humanos , Estimación de Kaplan-Meier , Extremidad Inferior , Masculino , Persona de Mediana Edad , Politetrafluoroetileno , Factores de Riesgo , Trombosis/etiologíaRESUMEN
In small infants and babies who receive split or living-related adult left lateral segmental liver grafts, further reduction (hyper-reduction) of the graft may be necessary to optimize the size of the graft for the child. We report our experience with hyper-reduction of adult left lateral segment grafts in nine children. A retrospective review of the medical records of children who received hyper-reduced grafts at the Children's Hospital at Westmead, Australia was performed. Of 215 liver transplants performed on 186 children between 1986 and May 2009, 147 were reduced grafts. Nine grafts were further reduced (hyper-reduced) after an on-table assessment of graft size relative to the available abdominal space was made. Mean graft size reduction was by 30%. The pledgetted technique of resection was used in four patients. All required delayed closure of the abdomen, and in three patients, fascial closure was not possible and a Surgisis patch (Cook Surgical International, West Lafayette, IN, USA) was placed to augment the abdominal capacity. Two children had hepatic artery thrombosis. One was successfully thrombectomized. In the other, technical problems with the donor liver contributed to death 10 days post-transplant. Two bile leaks, one from the cut surface and the other at the anastomotic site, were oversewn at the time of abdominal closure. On follow-up (median 33 months), two developed biliary strictures requiring dilatation. Hyper-reduction of segmental grafts can be safely performed when needed. In view of its versatility, it may be preferable to hyper-reduce a graft rather than use a monosegment graft. Comparable long-term results are possible. The pledgetted technique of resection is easy, quick, and safe. The fact that it can be performed after revascularization with minimal blood loss adds great flexibility to this technically challenging procedure.
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Trasplante de Hígado/métodos , Hígado/anatomía & histología , Preescolar , Femenino , Rechazo de Injerto , Supervivencia de Injerto , Humanos , Lactante , Masculino , Tamaño de los Órganos , Complicaciones Posoperatorias , Estudios Retrospectivos , Estadísticas no Paramétricas , Resultado del TratamientoRESUMEN
The aim of this study was to examine the role of HA flow abnormalities in the development of biliary strictures following split liver transplants. Data was obtained from a prospective data base of all patients undergoing split liver transplants from 2000-2008 with a follow up time of at least six months. Forty-six transplants were performed in 44 patients. Fourteen of 46 developed strictures of whom four were intrahepatic and 10 anastomotic. Nine of 14 with strictures had either hepatic artery thromobosis (HAT, four) or abnormalities of HA flow identified by routine Doppler ultrasound (5) compared with two of 32 without strictures (p < 0.02, (one temporary loss of flow and one HA aneurysm). There were no differences between the stricture and non stricture group with regard to age or weight at transplant, donor age, cold and warm ischemia times or intraoperative portal vein flow though there was a significant decrease in intraoperative HA flow in the stricture group. In conclusion, both HAT and hepatic artery flow abnormalities are associated with biliary strictures in the majority of split liver transplants. However, unrecognised abnormalities in HA flow and or other factors are likely to contribute.
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Conductos Biliares Extrahepáticos/cirugía , Colestasis Extrahepática/etiología , Colestasis/etiología , Arteria Hepática/cirugía , Yeyunostomía/métodos , Trasplante de Hígado/efectos adversos , Procedimientos Quirúrgicos Vasculares/métodos , Adulto , Anastomosis Quirúrgica , Velocidad del Flujo Sanguíneo , Preescolar , Colangiografía , Colestasis/diagnóstico , Colestasis/cirugía , Colestasis Extrahepática/diagnóstico , Colestasis Extrahepática/cirugía , Estudios de Seguimiento , Arteria Hepática/diagnóstico por imagen , Arteria Hepática/fisiopatología , Humanos , Donadores Vivos , Estudios Prospectivos , UltrasonografíaRESUMEN
CF liver disease is an uncommon indication for pediatric LT. Determining optimal timing and type (isolated liver versus multi-organ) of transplantation for those with severe liver disease can be challenging and involves consideration of the extent of liver disease (PHT, synthetic dysfunction) and extrahepatic factors such as pulmonary function. We present the experience of isolated LT for CF at our center. Eight children received one allograft each (3.9% of all grafts). One- and four-yr survivals are both 75%. The two deaths occurred within the first two months after LT, and in both cases, invasive fungal infections were implicated, one following treatment for acute severe rejection. All had significant PHT, and six had synthetic dysfunction. All had roux-en Y biliary anastomoses and none developed long-term biliary complications. Seven had pulmonary colonization with Pseudomonas aeruginosa and six with fungus at time of transplantation. Mean pre-LT FEV1 was 80% (range 59-116%) predicted, and lung function post-LT was stable. Isolated LT in children with CF is successful in those with relatively preserved pulmonary function, which does not appear to deteriorate as a consequence. Roux-en Y biliary anastomosis and antifungal prophylaxis should be a part of management of these patients.
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Fibrosis Quística/complicaciones , Hepatopatías/cirugía , Trasplante de Hígado , Adolescente , Antifúngicos/uso terapéutico , Australia , Niño , Fibrosis Quística/cirugía , Femenino , Rechazo de Injerto/prevención & control , Humanos , Hipertensión Portal/cirugía , Inmunosupresores/uso terapéutico , Hepatopatías/etiología , Trasplante de Hígado/métodos , Masculino , Estudios RetrospectivosRESUMEN
With gender parity of medical school graduates having been achieved for well over two decades, it is timely to assess whether this has translated into gender parity for all of the editorial type roles of Australasian medical journals, reflecting a move toward gender equity. Data analysis was undertaken of the gender ratios of the current editorial roles of Australasian medical journals as compared to available Australian Health Workforce data. This reveals some variation in the gender ratios for all of the current range of editorial type positions and, hence, an absence of parity. There are no women holding formal editorial positions at all for 27.7% of these journals, whilst 77.7% of the chief editors' roles are occupied by men. For five out of 18 (27.7%) of the journals, gender parity has been or is close to having been achieved for these particular roles. These gender ratios do not mirror the gender ratios of the wider community of practice for at least 50% of the journals. Hence, it can be seen that gender parity is yet to be achieved for the range of editorial roles of Australasian medical journals, which carries implications for gender equity initiatives.
RESUMEN
Autologous saphenous vein grafts are occasionally used in renal transplant recipients, particularly in living donors with short donor vessels or after donor vessel injury during allograft procurement. Autologous saphenous vein graft aneurysm formation is described as a late complication following the use of this conduit in renal transplant. We report a case of a 45-year-old woman who developed an autologous saphenous vein graft aneurysm 21 years after her living donor transplant, which was successfully managed with explantation of the graft, cold perfusion ex situ, and resection of the aneurysm, which was followed by reconstruction using deceased donor iliac vessels. The graft was then successfully reimplanted. Based on this experience and after a review of the literature related to autologous saphenous vein graft aneurysms in renal transplant, we recommend that surveillance for this particular complication should be considered no later than 10 years after implant of an autologous saphenous vein graft when used as an arterial conduit.
Asunto(s)
Aneurisma/cirugía , Arteria Ilíaca/trasplante , Trasplante de Riñón/efectos adversos , Nefrectomía , Arteria Renal/cirugía , Vena Safena/trasplante , Injerto Vascular/efectos adversos , Aneurisma/diagnóstico por imagen , Aneurisma/etiología , Femenino , Humanos , Persona de Mediana Edad , Perfusión , Arteria Renal/diagnóstico por imagen , Reoperación , Vena Safena/diagnóstico por imagen , Trasplante Autólogo , Resultado del TratamientoRESUMEN
The use of extended criteria donors is an effective way of reducing the shortage of deceased donor organs. Evidence of significant liver trauma in a deceased donor usually rules out transplantation of the liver. The aim of this study was to evaluate the use and outcomes of donor livers with preprocurement trauma. Records of all 312 deceased donors with a history of trauma between January 1986 and September 2007 were reviewed. Donors with macroscopic liver injuries were identified, and data from recipient medical records were obtained. Data on declined donor offers were also evaluated. The median donor age was 20 (range, 10-57) years, and 9 of 15 (60%) were male. The liver injuries were predominantly lacerations (grades 1-5) and vascular injury. The right lobe was resected because of extensive damage in 3 cases. This resulted in 2 left lobes (back-table cut-down) and 1 left lateral segment allograft (in situ split). For the 15 recipients, the median age was 43 (3-69) years. Primary nonfunction was not seen. There was no difference in survival between whole and partial allografts. Three deaths occurred within 3 months post-transplantation. During the same period, 42 of 1405 donor offers (3%) were declined because of extensive liver trauma or major ongoing intra-abdominal hemorrhage. In conclusion, the use of donor livers with preexisting trauma leads to acceptable outcomes. Strategies to deal with trauma include resection of the right lobe if required. Use of deceased donor livers with injury is a safe way to expand the donor pool.