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1.
Am J Transplant ; 11(2): 261-71, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21219568

RESUMO

This manuscript reports the demographics, education and training, professional activities and lifestyle characteristics of 171 members of the American Society of Transplant Surgeons (ASTS). ASTS members were sent a comprehensive survey by electronic mail. There were 171 respondents who were 49 ± 8 years of age and predominantly Caucasian males. Female transplant surgeons comprised 10% of respondents. ASTS respondents underwent 15.6 ± 1.0 years of education and training (including college, medical school, residency and transplantation fellowship) and had practiced for 14.7 ± 9.2 years. Clinical practice included kidney, pancreas and liver organ transplantation, living donor surgery, organ procurement, vascular access procedures and general surgery. Transplant surgeons also devote a significant amount of time to nonsurgical patient care, research, education and administration. Transplant surgeons, both male and female, reported working approximately 70 h/week and a median of 195 operative cases per year. The anticipated retirement age for men was 64.6 ± 8.6 and for women was 62.2 ± 4.2 years. This is the largest study to date assessing professional and lifestyle characteristics of abdominal transplant surgeons.


Assuntos
Especialidades Cirúrgicas , Transplantes , Centros Médicos Acadêmicos , Adulto , Idoso , Coleta de Dados , Educação , Feminino , Humanos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Sociedades Médicas , Especialidades Cirúrgicas/educação , Estados Unidos , Carga de Trabalho
2.
Transplant Proc ; 40(10): 3541-4, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19100433

RESUMO

BACKGROUND: Abdominal wall closure after liver transplantation is not always feasible and may result in increased intra-abdominal pressure along with associated complications. Various temporary closure techniques as well as open wound management have been used to address this complex problem. The aim of this series was to describe an approach to definitive wound closure of the open abdomen in liver transplant patients. METHODS: We performed a retrospective review of all liver transplant patients at our institution from September 2005 to November 2007. The management of the open abdomen in 10 liver transplant patients was reviewed, and a novel approach described to manage these defects. RESULTS: Ten patients with open wounds were closed during the study period using human acellular dermal matrix (HADM). There were 7 men and 3 women of median age 55 years. Average size of HADM was 235 cm(2). The median follow-up is 10 months with no incidence of evisceration or hernia. In 1 patient, the graft failed along the lateral side due to infection; it dislodged during vacuum-assisted closure dressing change in another patient at 5 months after closure. Fascial closure was not possible due to organ edema (n = 3), a large liver (n = 4) or wound infection with dehiscence (n = 3). CONCLUSIONS: HADM can be used for primary wound closure in both clean and contaminated wounds as an alternative to an open abdomen post-liver transplantation.


Assuntos
Abdome/cirurgia , Procedimentos Cirúrgicos Dermatológicos , Transplante de Fígado/métodos , Pele/anatomia & histologia , Cavidade Abdominal/anatomia & histologia , Parede Abdominal/anatomia & histologia , Adulto , Idoso , Peso Corporal , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/métodos , Estudos Retrospectivos , Cicatrização
3.
Transplant Proc ; 50(10): 3957-3960, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30577295

RESUMO

Core needle biopsies are still widely performed to evaluate the pathologic suitability of a kidney allograft. Here, we report a case of pulsatile hematuria from a procurement core needle biopsy where the patient had to be taken emergently to interventional radiology for coil embolization immediately after organ reperfusion.


Assuntos
Biópsia com Agulha de Grande Calibre/efeitos adversos , Hematúria/etiologia , Transplante de Rim , Coleta de Tecidos e Órgãos/efeitos adversos , Transplantes/cirurgia , Idoso , Embolização Terapêutica , Hematúria/terapia , Humanos , Masculino
4.
Transplantation ; 69(5): 999-1001, 2000 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-10755566

RESUMO

BACKGROUND: Vascular complications after liver transplant are associated with a high incidence of graft failure and mortality. Mycotic aneurysms, although uncommon, carry the additional risk of infection and rupture. METHODS: We report a case of a 51-year-old woman who developed a mycotic aneurysm of the aorta secondary to construction of an infrarenal donor iliac artery graft during a retransplant. We evaluated risk factors for the aneurysm, appropriate diagnosis, and potential treatments. RESULTS: The aneurysm was repaired with an in situ prosthetic graft. The patient is alive with good liver function 31 months posttreatment. CONCLUSIONS: The use of in situ prosthetic grafts for repair of mycotic aneurysms is appropriate in certain situations and may be life-saving.


Assuntos
Aneurisma Infectado/etiologia , Aneurisma Infectado/cirurgia , Aneurisma Aórtico/etiologia , Aneurisma Aórtico/cirurgia , Implante de Prótese Vascular , Transplante de Fígado , Complicações Pós-Operatórias , Aneurisma Infectado/diagnóstico por imagem , Aneurisma Aórtico/diagnóstico por imagem , Aortografia , Feminino , Humanos , Artéria Ilíaca/cirurgia , Pessoa de Meia-Idade , Circulação Renal , Reoperação
5.
Transplantation ; 68(9): 1410-3, 1999 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-10573083

RESUMO

BACKGROUND: The mechanisms underlying cyclosporine neurotoxicity remain undefined. Particularly, whether cyclosporine (CyA) enters cerebrospinal fluid (CSF) or brain tissue is disputed. METHODS: We analyzed CSF from 17 lumbar punctures performed in 14 liver recipients receiving CyA and experiencing neurological complications, fever of unknown origin, seizures, or altered mental status. Whole blood samples were assayed for CyA and its metabolites. Liver function tests, serum electrolytes, and cholesterol were also analyzed. RESULTS: Four patients had cyclosporine metabolites in the CSF. These patients had acute renal insufficiency and significantly higher blood urea nitrogen (BUN) and total and direct bilirubin and alkaline phosphatase levels than patients without CyA metabolites in CSF (P < 0.05). Whole blood levels of CyA parent drug were similar between groups. Levels of CyA metabolites in the blood were significantly higher in patients with metabolites in the CSF. CyA parent drug was undetectable in CSF in both groups. CONCLUSIONS: This is the first prospective report of CyA metabolites in the CSF of transplant recipients. Acute renal insufficiency and high bilirubin levels may be associated with entry of CyA metabolites into the CSF.


Assuntos
Ciclosporina/líquido cefalorraquidiano , Imunossupressores/líquido cefalorraquidiano , Transplante de Fígado , Adulto , Nitrogênio da Ureia Sanguínea , Ciclosporina/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
6.
Transplantation ; 59(7): 986-90, 1995 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-7709460

RESUMO

Graft and patient survival rates after transplantation of ABO-incompatible liver allografts have been poor. We used plasmapheresis and a potent immunosuppressive regimen to control hemagglutinin levels and prevent early rejection. Ten patients who had a United Network for Organ Sharing status of 4 received ABO-incompatible allografts. Quadruple immunosuppression consisted of OKT3, Cytoxan, cyclosporine, and steroid taper; prostaglandin E-1 was administrated intravenously the first week. All patients underwent perioperative plasmapheresis to maintain hemagglutinin levels < 1:16. Patient survival was 80%; graft survival was 60% at 140-505 days. The rejection rate was 90%. Three recipients (A1-->O) lost their grafts to severe rejection at 5, 12, and 30 days after transplantation. All 3 had pretransplantation hemagglutinin levels > or = 1:100. Elevated hemagglutinin levels preceded the diagnosis of severe acute cellular rejection; plasmapheresis failed to lower anti-A titers in these 3 patients. We conclude that in an urgent setting, lowering of preformed hemagglutinins via plasmapheresis in combination with quadruple induction immunosuppression allows liver transplantation across ABO barriers. In patients with high baseline levels of preformed hemagglutinins, the risk of subsequent graft loss may be increased and transplantation with an ABO-incompatible graft may serve as a lifesaving intermediate step.


Assuntos
Sistema ABO de Grupos Sanguíneos , Incompatibilidade de Grupos Sanguíneos , Imunossupressores/uso terapêutico , Transplante de Fígado/imunologia , Plasmaferese , Adolescente , Adulto , Formação de Anticorpos , Pré-Escolar , Ciclofosfamida/uso terapêutico , Ciclosporina/uso terapêutico , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto/fisiologia , Hemaglutininas/análise , Humanos , Metilprednisolona/uso terapêutico , Pessoa de Meia-Idade , Muromonab-CD3/uso terapêutico
7.
Transplantation ; 56(6): 1399-402, 1993 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-8279010

RESUMO

Hepatic artery thrombosis (HAT) after liver transplantation (LTx) usually mandates retransplantation. Prolonged preservation with Eurocollins solution has been associated with HAT. We reviewed our experience with 359 LTx patients to identify risk factors for HAT. All grafts were preserved in University of Wisconsin solution. HAT developed in 12 patients (3%) within 50 days. Seven patients were asymptomatic; four presented with biliary sepsis and 1 with poor graft function. Two patients had suffered acute rejection; another 2 had severe preservation injury. Technical problems accounted for 4 cases; in the remaining 8, no etiology was found. Diagnosis was at a mean 14.7 days after LTx. One patient maintains normal graft function 3 years after LTx without intervention. Eight underwent re-LTx, 3 of whom died. Routine surveillance via duplex enabled early diagnosis and revascularization in 3 patients; in all 3, no biliary complications occurred between 6 and 20 months. Overall graft and patient survival after HAT were 33.3% and 75%, respectively. Cold ischemic time (CIT) averaged 813 min in patients with HAT and 669 min in those without HAT (P < .05). HAT occurred in 7/165 patients with CIT > 12 hr, and in 3/234 patients with CIT < 12 hr (P = 0.0699). By avoiding CIT > 12 hr, we have recently avoided HAT in 78 consecutive patients. We conclude that CIT > 12 hr may increase the risk of HAT. When HAT is diagnosed before biliary sepsis develops, flow can often be restored and retransplantation averted.


Assuntos
Artéria Hepática , Transplante de Fígado/efeitos adversos , Soluções para Preservação de Órgãos , Preservação de Órgãos/efeitos adversos , Trombose/etiologia , Adenosina/efeitos adversos , Adulto , Idoso , Alopurinol/efeitos adversos , Pré-Escolar , Temperatura Baixa , Glutationa/efeitos adversos , Humanos , Insulina/efeitos adversos , Isquemia/complicações , Fígado/irrigação sanguínea , Pessoa de Meia-Idade , Rafinose/efeitos adversos , Trombose/diagnóstico por imagem , Trombose/cirurgia , Fatores de Tempo , Ultrassonografia
8.
Transplantation ; 64(10): 1481-3, 1997 Nov 27.
Artigo em Inglês | MEDLINE | ID: mdl-9392317

RESUMO

BACKGROUND: Transient thrombocytopenia is common after liver transplantation, but persisting thrombocytopenia worsens the prognosis after transplant. METHODS: Two patients underwent splenectomy for persistent thrombocytopenia early after liver transplantation. The first patient had a platelet count of 17,000/mm3 on postoperative day (POD) 6; her hemoglobin and white blood cell counts were normal. Work-ups including bone marrow aspiration, Coombs test, and antiplatelet antibody test were negative. On POD 9, she had abdominal bleeding with a platelet count of 17,000/mm3 despite repeated platelet transfusions, and splenectomy was done. The second patient had a platelet count of 3000/mm3 on POD 14, white blood cell was 1600/mm3, and hemoglobin was 7.7 g/dl. Bone marrow biopsy revealed hypercellular marrow. Because his platelet count remained at 2000/mm3 despite empiric treatment with intravenous immune globulin and methylprednisolone, splenectomy was performed. RESULTS: The first patient's platelet count rose to 155,000/mm3 by POD 8. The second patient's platelet count reached 210,000/mm3 on POD 5. Neither patient has had an episode of thrombocytopenia at 36 and 32 months after splenectomy. CONCLUSIONS: Splenectomy can be used after liver transplantation for severe, persistent thrombocytopenic states that cannot be attributed to sepsis, intravascular coagulation, immunological causes, or drug effects.


Assuntos
Hiperesplenismo/complicações , Transplante de Fígado/efeitos adversos , Adolescente , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Esplenectomia , Trombocitopenia/etiologia , Trombocitopenia/cirurgia , Fatores de Tempo
9.
Transplantation ; 64(9): 1295-9, 1997 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-9371671

RESUMO

BACKGROUND: Hepatic artery thrombosis (HAT) can be a devastating complication of orthotopic liver transplantation (OLT), but early diagnosis may allow successful revascularization and graft salvage. METHODS: We reviewed data on 1,026 liver transplants at our institution. For patients in whom HAT was diagnosed within 30 days after OLT, we recorded indications for ultrasonography and liver function tests at diagnosis, management of HAT, and graft and patient survival. RESULTS: Thirty-two patients (3.1%) developed HAT at 6.8+/-6.6 days (range, 1-29 days) after OLT. Twelve patients (37.5%) were asymptomatic at diagnosis. In 11 of these 12, HAT was diagnosed on routine duplex at 2.0+/-1.55 days after OLT; in the 12th patient, HAT was noted during re-exploration for unrelated bleeding on postoperative day 3. Eleven of 12 patients (91.6%) were revascularized; one patient (8.4%) received no treatment with no sequelae. Of the 11 who were revascularized, 9 (81.8%) had graft salvage and 2 (18.2%) received a second transplant, with one death. Twenty patients (62.5%) were symptomatic. In these 20, HAT was diagnosed at 9.85+/-6.93 days after OLT. Symptoms were: elevated liver function test results (serum glutamic oxaloacetic transaminase: 722+/-1792 U/ml, serum glutamic pyruvic transaminase: 678+/-963 U/ml, and bilirubin: 10.2+/-6.2 mg/dl) in 13 patients (65%); bile leak in 4 patients (20%), and sepsis in 3 (15%). Five of the 20 patients (25%) were revascularized; of these 5, 2 (40%) had graft salvage, 2 (40%) received a second transplant with 1 death, and 1 (20%) died of a liver abscess. Twelve symptomatic patients (60%) had immediate re-OLT; 10/12 are alive, 1 died of sepsis, and 1 died late of unrelated causes. Three symptomatic patients had no treatment; two died of biliary sepsis and one survived. Overall graft salvage was 83.3% in asymptomatic patients and 15% in patients with symptoms (P<0.001). Graft salvage in asymptomatic patients undergoing revascularization was 81.8%, versus 40% in symptomatic patients (P=NS). One-year patient survival was 91.7% in asymptomatic patients and 65% in symptomatic patients (with one late death excluded) (P=NS). CONCLUSIONS: Routine postoperative duplex ultrasonography should be performed early after liver transplantation. We believe that emergent revascularization of hepatic artery thrombosis in asymptomatic patients and retransplantation in symptomatic patients lead to improved graft salvage and patient survival with a relatively low incidence of late biliary complications.


Assuntos
Sobrevivência de Enxerto/fisiologia , Artéria Hepática/cirurgia , Transplante de Fígado/efeitos adversos , Trombose/etiologia , Trombose/cirurgia , Doença Aguda , Adolescente , Adulto , Idoso , Pré-Escolar , Feminino , Artéria Hepática/diagnóstico por imagem , Humanos , Lactente , Fígado/irrigação sanguínea , Fígado/fisiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Trombose/diagnóstico por imagem , Transplante , Ultrassonografia , Procedimentos Cirúrgicos Vasculares/métodos
10.
Transplantation ; 64(8): 1214-6, 1997 Oct 27.
Artigo em Inglês | MEDLINE | ID: mdl-9355846

RESUMO

BACKGROUND: We evaluated the utility of CD3 cell counts for monitoring OKT3 induction immunosuppression and for predicting early rejection in liver recipients. METHODS: In 32 adults in whom OKT3 and steroids were used to induce immunosuppression, CD3 cell subsets were labeled with CD3 (IgG1)-fluorescein isothiocyanate monoclonal antibody and assayed by flow cytometry before orthotopic liver transplantation and within 2-4 days, 5-7 days, and 8-10 days after transplantation. Trough OKT3 levels were measured at the same points in 10 patients. Early rejection (before postoperative [POD] day 21) was proven by elevated liver function tests and biopsy. Six patients were excluded for death, retransplantation, or early cessation of OKT3. RESULTS: Eight of 26 patients (30.8%) had early rejection and 18 (69.2%) had no early rejection. All had depletion of CD3 cells to <10.2% of baseline at POD 2-4. On POD 8-10, the mean CD3 count in rejectors was 213.31+/-184.98/mm3 vs. 22.71+/-32.42/mm3 in nonrejectors (P<0.001). By POD 8-10, five of eight (62.5%) patients who rejected had CD3 count recovery to >75% of baseline. No nonrejecting patient recovered to >26% of baseline (P<0.001). OKT3 levels did not correlate with CD3 recovery or rejection. CONCLUSIONS: The incidence of early rejection correlates strongly with recovery of CD3 counts by POD 10. Higher baseline CD3 counts do not predict early rejection.


Assuntos
Transplante de Fígado/imunologia , Muromonab-CD3/uso terapêutico , Adulto , Idoso , Complexo CD3/análise , Complexo CD3/sangue , Ciclosporina/uso terapêutico , Feminino , Rejeição de Enxerto/epidemiologia , Rejeição de Enxerto/prevenção & controle , Rejeição de Enxerto/terapia , Humanos , Imunossupressores/uso terapêutico , Contagem de Linfócitos , Linfócitos/imunologia , Masculino , Pessoa de Meia-Idade , Muromonab-CD3/sangue , Estudos Prospectivos , Fatores de Risco , Tacrolimo/uso terapêutico , Fatores de Tempo
11.
Transplantation ; 64(2): 248-51, 1997 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-9256182

RESUMO

BACKGROUND: The safety of transplanting livers with moderate to severe microvesicular steatosis is unknown. Livers that appear fatty are often abandoned at the donor hospital. We have recently used frozen-section biopsy to distinguish between microvesicular and macrovesicular steatosis. We present here our single-center experience with transplantation of 40 allografts with moderate or severe microvesicular steatosis. METHODS: We reviewed our data on 426 transplants and identified 40 cases in which the donor liver contained at least 30% microvesicular steatosis. Early graft function, patient and graft survival, and donor risk factors for steatosis were examined, and results in this cohort were compared with results in all other patients who received liver transplants at our center during the same time period. We also analyzed the reliability of donor frozen-section biopsies in quantitating microsteatosis. Persistence of steatosis was assessed on the basis of 1-year follow-up biopsies. RESULTS: The incidence of primary nonfunction and poor early graft function was 5% and 10%, respectively. One-year patient and graft survival rates were 80% and 72.5%, respectively. Donor obesity and traumatic death were commonly identified risk factors for microvesicular steatosis. Frozen-section biopsy was reliable for pretransplant decision-making about the use of potential grafts, and the steatosis had disappeared from the graft at 1 year in the majority of cases. CONCLUSIONS: Livers with even severe microvesicular steatosis can be reliably used for transplantation without the fear of high rates of primary nonfunction. There was a significant incidence of poor early graft function, but this did not affect outcome. Microsteatosis is usually associated with some underlying risk factor in the donor and is reversible, as demonstrated by follow-up biopsies after transplant.


Assuntos
Fígado Gorduroso/patologia , Transplante de Fígado/patologia , Biópsia , Índice de Massa Corporal , Feminino , Sobrevivência de Enxerto/fisiologia , Humanos , Transplante de Fígado/imunologia , Masculino , Doadores de Tecidos , Transplante Homólogo/patologia , Transplante Homólogo/fisiologia
12.
Transplantation ; 67(7): 1071-3, 1999 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-10221497

RESUMO

BACKGROUND: Transplantation of blood type A subgroup 2 (A2) livers into non-A recipients has not been reported previously. A2 to O renal transplantation has been reported, with early results including some accelerated rejections and graft losses. This has led some to selectively offer A2 renal transplantation only for patients with low anti-A titers. Given the different clinical behavior of liver allografts to preformed antibody, we felt that such restriction was unnecessary. METHODS: We performed six cases of A2 to O liver transplantation with no augmented immunomodulation or restriction with regard to antibody titers. Clinical courses, anti-A titers, rejection rates, and graft and patient survival were evaluated. RESULTS: All six patients had high pretransplant anti-A titers (>1:8), and all six grafts functioned normally. There were nine rejections in the six patients, of which three were severe (steroid-resistant) and five were late (>90 days). No rejection was vascular, and no grafts were lost, with mean follow-up of 665 days. In one patient who had anti-A antibody measured at the time of rejection IGM titers increased from baseline. Currently all patients are home with normal function. CONCLUSIONS: We found that transplantation of blood group A2 livers into blood group O recipients is safe and can be performed without graft loss and without regard to anti-A titer level. The rate of acute cellular rejection is high in this small series, and a significant proportion of these events were late or required OKT-3. We did not rely on plasmapheresis or anti-A titer determinations. However, the potential for late rejection prompts us to consider the addition of a third immunosuppressive agent. The transplantation of A2 livers into O recipients can partially compensate for the more frequent use of O livers in recipients from other blood groups.


Assuntos
Sistema ABO de Grupos Sanguíneos , Transplante de Fígado/imunologia , Doadores de Tecidos , Rejeição de Enxerto/epidemiologia , Sobrevivência de Enxerto/fisiologia , Humanos , Imunoglobulina M/análise , Incidência , Isoanticorpos/análise , Reoperação , Segurança , Análise de Sobrevida
13.
Transplantation ; 67(3): 416-8, 1999 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-10030288

RESUMO

Alagille's syndrome is a common cause of liver disease in children and may lead to the need for orthotopic liver transplantation. Alagille's syndrome is inherited in an autosomal dominant manner, with variable penetration, and may also be present in patients' parents, who may be considered potential donors for living-related transplantation. We report here on two cases in which the living-related donors for children with Alagille's syndrome had no liver function abnormalities or characteristic features of Alagille's syndrome. In both cases, the operation for living-related donation had to be aborted because of a paucity of bile ducts discovered intraoperatively. Given the variable presentation of Alagille's syndrome, we believe that it is necessary preoperatively to evaluate the biliary system of family members who are potential living-related donors for patients with this condition.


Assuntos
Síndrome de Alagille/cirurgia , Ductos Biliares/anormalidades , Transplante de Fígado , Fígado/anatomia & histologia , Doadores Vivos , Adulto , Feminino , Humanos , Lactente , Mães
14.
Transplantation ; 72(10): 1643-6, 2001 Nov 27.
Artigo em Inglês | MEDLINE | ID: mdl-11726824

RESUMO

INTRODUCTION: Acute leukemia is rare after solid organ transplantation. METHODS: Review of data on 3 patients with acute leukemia identified among 1365 who underwent liver transplantation at our center, and a review of the literature. RESULTS: In patient 1, AML-M4 developed 19 months after transplant for cryptogenic cirrhosis. In patient 2, B cell acute lymphoid leukemia was diagnosed 10 months after liver transplant for fulminant hepatitis. Both patients had normal cytogenetics, and achieved complete remission with chemotherapy. In patient 3, acute monocytic leukemia-M3 with t(15;17) arose 18 months after transplant for hepatitis C cirrhosis. This patient received treatment with retinoic acid and chemotherapy, but developed a disseminated intravascular coagulation and died before completing therapy. No patient presented with chromosomal abnormalities commonly seen in secondary leukemia. The latency period to diagnosis after transplant was 10-19 months. CONCLUSIONS: Acute leukemia, although rare after liver transplantation, should be considered in the differential diagnosis of hematological complications.


Assuntos
Leucemia Mieloide Aguda/etiologia , Transplante de Fígado/efeitos adversos , Leucemia-Linfoma Linfoblástico de Células Precursoras/etiologia , Adolescente , Adulto , Aberrações Cromossômicas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
15.
Transplantation ; 69(5): 781-9, 2000 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-10755526

RESUMO

BACKGROUND: Short-term outcomes of liver transplantation are well reported. Little is known, however, about long-term results in liver recipients surviving > or =5 years. We sought to analyze long-term complications in liver recipients surviving > or =5 years after transplant, to assess their medical condition and to compare findings to the general population. METHODS: We analyzed the chart and database records of all patients (n=139) who underwent liver transplantation at a major transplant center before January 1, 1991. Outcome measures included the presence of diabetes, hypertension, heart, renal or neurological disease, osteoporosis, incidence of de novo malignancy or fracture, or other pathology, body mass index, serum cholesterol and glucose, liver function, blood pressure, frequency of laboratory and clinic follow-up, current pharmacological regimen, and late rejection episodes. RESULTS: Ninety-six patients (70%) survived > or =5 years. Compared to numbers expected based on U.S. population rates, transplant recipients had significantly higher overall prevalences of hypertension (standardized prevalence ratio [SPR]=3.07, 95% confidence interval [CI], 2.35-3.93) and diabetes (SPR=5.99, 95% CI, 4.15-8.38), and higher incidences of de novo malignancy (standardized incidence ratio [SIR]=3.94, 95% CI, 2.09-6.73), non-Hodgkin's lymphoma (SIR=28.56, 95% CI, 7.68-73.11), non-melanoma skin cancer (estimated SIR> or =3.16) and fractures in women (SIR=2.05, 95% CI, 1.12-3.43). Forty-one of 87 (47.1%) patients were obese, and 23 patients (27.4%) had elevated serum cholesterol levels (> or =240 mg/dl, 6.22 mmol/L), compared to 33% and 19.5% of U.S. adults, respectively. Prevalences of heart or peptic ulcer disease were not significantly higher. CONCLUSIONS: Liver transplantation is being performed with excellent 5-year survival. Significant comorbidities exist, however, which appear to be related to long-term immunosuppression.


Assuntos
Transplante de Fígado , Complicações Pós-Operatórias , Adulto , Idoso , Doenças Ósseas/etiologia , Diabetes Mellitus/etiologia , Feminino , Seguimentos , Cardiopatias/etiologia , Humanos , Hipercolesterolemia/etiologia , Hipertensão/etiologia , Nefropatias/etiologia , Hepatopatias/etiologia , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Neoplasias/etiologia , Úlcera Péptica/etiologia , Recidiva , Análise de Sobrevida
16.
Transplantation ; 62(1): 62-5, 1996 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-8693547

RESUMO

Between March 1991 and August 1995, 36 livers from donors >/=70 years old were transplanted. In donors, we recorded the following risk factors: alanine aminotransferase > 120 and rising, dopamine dose > 15 microg/kg/min, hypotension (systolic blood pressure <80) >1 hr, stay in the intensive care unit >5 days and body mass index >/=27. In 35 recipients, we recorded pretransplant United Network for Organ Sharing (UNOS) status, cold/warm ischemia time, intraoperative blood loss, and occurrence of poor early graft function or primary nonfunction. Mean recipient age was 55 years (range, 25-75 years). Four recipients were UNOS status 1, 19 were UNOS 2, and 12 were UNOS 3. Two livers were used as second grafts for primary graft nonfunction. Mean donor age was 73 years (range, 70-84 years). Intracranial bleeding was the cause of death in the majority of donors. The 36 donors had 40 risk factors; 10 donors had >1 risk factor. Mean cold and warm ischemia times were 9:08 +/- 2:57 hr and 51 +/- 9 min. Mean total operative time was 7.5 hr. Posttransplant mean peak alanine aminotransferase and aspartate aminotransferase levels were 937.3 +/- 703.1 IU/L and 923.3 +/- 708.5 IU/L, respectively. Mean prothrombin time on postoperative day 2 was 14.9 +/- 1.6 sec. Average total bilirubin on postoperative day 5 was 4.9 mg/dl. Median length of stay in the intensive care unit was 4 days. One recipient had poor early graft function; two recipients had primary nonfunction. Mean follow-up was 503 days (range, 110-1714 days). Three-month actual graft and patient survival rates were 85% and 91%, respectively. One-year actuarial graft and patient survival rates were also 85% and 91%, respectively. We conclude that older livers can be used safely. Advanced donor age should not be a contraindication to liver procurement.


Assuntos
Transplante de Fígado/métodos , Doadores de Tecidos , Adulto , Fatores Etários , Idoso , Feminino , Sobrevivência de Enxerto , Humanos , Transplante de Fígado/patologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco
17.
Transplantation ; 68(9): 1298-304, 1999 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-10573067

RESUMO

BACKGROUND: Infection and rejection are two common complications after liver transplants. In a preliminary study, administration of granulocyte colony-stimulating factor (G-CSF) to liver transplant recipients was associated with a decrease in sepsis episodes, sepsis-related deaths, and rejection compared with a historical control group of patients. The purpose of this study was to evaluate further the efficacy of G-CSF in liver transplant patients in a randomized, placebo-controlled, double-blind, multicenter trial. METHODS: Adult patients with a United Network Organ Sharing classification of 1 or 2 were randomized to receive a placebo, 100 microg/day of G-CSF or 300 microg/day of G-CSF. The study drug was started preoperatively and then continued after the transplant for a maximum of 21 days. Patients were evaluated for microbiologically-documented infection, biopsy-proven rejection, number of treatments for rejection, length of stay in the intensive care unit and hospital, graft survival, death, and adverse events. RESULTS: During the first 30 days after the transplant, the median peak white blood cell count was 16.5x10(9)/L, 34.6x10(9)L, and 54.8x10(9)/L for the placebo, low-dose G-CSF, and high-dose G-CSF patients, respectively. The incidence of infection was 30% in G-CSF patients (34 of 114 patients) and 34% in placebo patients (20 of 58 patients). Except for more nosocomial pneumonias in the G-CSF patients (7 in 114 patients vs. 0 in 58 patients, P=0.056), the types of infections and causative organisms were also similar in both treatment groups. Although the number of treatments for clinically suspected or proven rejection was similar in the G-CSF and placebo patients, biopsy-proven rejection occurred more often in G-CSF patients (34 of 114 patients or 30%) than placebo patients (11 of 58 patients or 19%) (P=0.093). There were no cases of graft loss caused by rejection. G-CSF had no effect on length of stay in the intensive-care unit or hospital. There were 22 G-CSF patients (18%) and 10 placebo patients (15%) who died within 120 days after the transplant. No serious adverse events were attributed to G-CSF. CONCLUSION: Despite producing substantial increases in the white blood cell count after the transplant, G-CSF had no beneficial effects on infection, rejection, or survival in this study. Biopsy-proven rejection and nosocomial pneumonias were more common in patients treated with G-CSF compared with those taking the placebo. No serious adverse events were attributed to G-CSF.


Assuntos
Fator Estimulador de Colônias de Granulócitos/uso terapêutico , Transplante de Fígado , Adolescente , Adulto , Idoso , Método Duplo-Cego , Feminino , Rejeição de Enxerto , Sobrevivência de Enxerto/efeitos dos fármacos , Fator Estimulador de Colônias de Granulócitos/efeitos adversos , Humanos , Contagem de Leucócitos/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade
18.
Transplantation ; 72(7): 1232-6, 2001 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-11602847

RESUMO

BACKGROUND: Wilson's disease is an inherited disorder of copper metabolism characterized by reduced biliary copper excretion, which results in copper accumulation in tissues with liver injury and failure. Orthotopic liver transplantation (OLT) can be lifesaving for patients with Wilson's disease who present with fulminant liver failure and for patients unresponsive to medical therapy. The aim of this study is to review our experience with OLT for patients with Wilson's disease. METHODS: Between 1988 and 2000, 21 OLTs were performed in 17 patients with Wilson's disease. Patient demographics, pre-OLT laboratory data, operative data, and early and late postoperative complications were reviewed retrospectively. One-year patient and graft survival was calculated. RESULTS: Eleven patients had fulminant Wilson's disease; in six patients the presentation was chronic. Mean patient age at presentation was 28 years (range 4-51 years); mean follow-up was 5.27 years (range 0.4-11.4 years). Neurologic features of Wilson's disease were not prominent preoperatively and did not develop post-OLT except in one patient who developed acute neuropsychiatric illness and seizure. Renal failure, present in 45% of patients with fulminant Wilson's disease, resolved post-OLT with supportive care. One-year patient and graft survivals were 87.5% and 62.5%, respectively. Fifteen survivors have remained well with normal liver function and no disease recurrence. CONCLUSION: Liver transplantation for hepatic complications of Wilson's disease cures and corrects the underlying metabolic defect and leads to long-term survival in patients who present with either acute or chronic liver disease. Acute renal failure develops frequently in patients with fulminant Wilsonian hepatitis and typically resolves postoperatively.


Assuntos
Degeneração Hepatolenticular/cirurgia , Transplante de Fígado , Adulto , Criança , Pré-Escolar , Doença Crônica , Feminino , Sobrevivência de Enxerto , Degeneração Hepatolenticular/patologia , Degeneração Hepatolenticular/fisiopatologia , Humanos , Fígado/patologia , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Estudos Retrospectivos , Índice de Gravidade de Doença , Análise de Sobrevida
19.
Arch Surg ; 136(10): 1177-83, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11585512

RESUMO

HYPOTHESIS: Preoperative and intraoperative variables predict in part adverse outcome after liver transplantation. DESIGN: Prospective, blinded, cohort study. SETTING: Tertiary care hospital. SUBJECTS: A total of 190 adult patients undergoing primary liver transplantation. MAIN OUTCOME MEASURE: Adverse outcome was prospectively defined as either in-hospital death or prolonged postoperative hospitalization (>14 days) associated with morbidity. Potential preoperative and intraoperative risk factors were collected. Associations were tested by univariate analysis followed by multivariate analysis in which preoperative factors were entered before intraoperative factors. RESULTS: Adverse outcome occurred in 44.7% of patients. Incidences of other complications were as follows: in-hospital mortality (8.4%), primary graft nonfunction (4.2%), poor early graft function (1.1%), and early rejection (31.2%). Univariate predictors of adverse outcome were United Network for Organ Sharing status (P =.003), Child-Turcotte-Pugh score (P =.02), POSSUM physiological score (P =.002), recipient age (P =.01), preoperative serum high-density lipoprotein cholesterol level (P =.03), preoperative serum creatinine level (P =.002), preoperative serum total IgG level (P =.004), duration in hospital preoperatively (P =.03), operative duration (P<.001), allogeneic erythrocyte transfusions (P<.001), total intraoperative fluids (P =.002), and use of inotropic agents (P =.01). In the final multivariate model, predictors of adverse outcome were United Network for Organ Sharing status (P =.03), recipient age (P =.002), and total intraoperative fluids (P =.04). Most patients who died or had a prolonged hospitalization exhibited dysfunction of more than 1 organ system, including pulmonary, renal, and infectious complications. CONCLUSIONS: Adverse outcome occurs frequently after liver transplantation, usually involves multiple organ systems, and is predicted in part by several preoperative and intraoperative factors.


Assuntos
Rejeição de Enxerto , Transplante de Fígado/efeitos adversos , HDL-Colesterol/sangue , Estudos de Coortes , Creatinina/sangue , Feminino , Humanos , Imunoglobulina G/sangue , Tempo de Internação , Fígado/fisiopatologia , Transplante de Fígado/fisiologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estudos Prospectivos , Fatores de Risco , Resultado do Tratamento
20.
J Am Coll Surg ; 183(2): 113-6, 1996 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-8696541

RESUMO

BACKGROUND: The main morbidity associated with hepatic resection is related to excessive blood loss. Total vascular isolation (TVI) may be used to minimize blood loss in difficult hepatic resection cases. STUDY DESIGN: We reviewed our criteria for use of TVI and our experience in 43 patients who underwent hepatic resection for benign lesions between January 1990 and January 1995. Total vascular isolation was used in 23 patients; 20 resections were performed without TVI. RESULTS: We found TVI particularly useful for resection of highly vascular lesions, and lesions located centrally or adjacent to major vessels. The use of TVI reduced blood loss in difficult hepatic resections; transfusion requirements for these patients were similar to requirements for the resection of peripheral lesions. Fewer complications directly related to hepatic resection were encountered in the TVI group. CONCLUSIONS: Appropriate use of TVI will improve results after difficult hepatic resections and allow maximal sparing of normal hepatic tissue when operating on benign lesions.


Assuntos
Perda Sanguínea Cirúrgica/prevenção & controle , Hepatectomia/métodos , Neoplasias Hepáticas/cirurgia , Adolescente , Adulto , Idoso , Transfusão de Sangue , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Complicações Intraoperatórias , Fígado/irrigação sanguínea , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Estudos Retrospectivos
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