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1.
Exp Clin Transplant ; 11(2): 154-63, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23480344

RESUMO

OBJECTIVES: Organ donation after cardiac death remains an available resource to meet the demand for transplant. However, concern persists that outcomes associated with donation after cardiac death liver allografts are not equivalent to those obtained with organ donation after brain death. The aim of this matched case control study was to determine if outcomes of liver transplants with donation after cardiac death donors is equivalent to outcomes with donation after brain death donors by controlling for careful donor and recipient selection, surgical technique, and preservation solution. MATERIALS AND METHODS: A retrospective, matched case control study of adult liver transplant recipients at the University of Tennessee/Methodist University Hospital Transplant Institute, Memphis, Tennessee was performed. Thirty-eight donation after cardiac death recipients were matched 1:2, with 76 donation after brain death recipients by recipient age, recipient laboratory Model for End Stage Liver Disease score, and donor age to form the 2 groups. A comprehensive approach that controlled for careful donor and recipient matching, surgical technique, and preservation solution was used to minimize warm ischemia time, cold ischemia time, and ischemia-reperfusion injury. RESULTS: Patient and graft survival rates were similar in both groups at 1 and 3 years (P = .444 and P = .295). There was no statistically significant difference in primary nonfunction, vascular complications, or biliary complications. In particular, there was no statistically significant difference in ischemic-type diffuse intrahepatic strictures (P = .107). CONCLUSIONS: These findings provide further evidence that excellent patient and graft survival rates expected with liver transplants using organ donation after brain death donors can be achieved with organ donation after cardiac death donors without statistically higher rates of morbidity or mortality when a comprehensive approach that controls for careful donor and recipient matching, surgical technique, and preservation solution is used.


Assuntos
Transplante de Fígado/mortalidade , Soluções para Preservação de Órgãos , Seleção de Pacientes , Doadores de Tecidos/estatística & dados numéricos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Centros Médicos Acadêmicos/estatística & dados numéricos , Adolescente , Adulto , Morte Encefálica , Morte , Feminino , Teste de Histocompatibilidade , Humanos , Masculino , Pessoa de Meia-Idade , Morbidade , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Tennessee/epidemiologia , Adulto Jovem
2.
Exp Clin Transplant ; 11(5): 458-63, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23534438

RESUMO

Metastatic melanoma is a donor-derived malignancy that has rarely been reported in liver allograft recipients. We present a case of a transmitted donor-derived melanoma to a liver allograft recipient in whom the diagnosis was established by polymerase chain reaction-based DNA fingerprinting. A 52-year-old African-American man underwent a successful orthotropic liver transplant for alcohol-induced cirrhosis. One year after the orthotropic liver transplant, he presented at our institution with diffuse abdominal pain, and a computed tomography scan of the abdomen and chest showed innumerable masses diffusely involving the liver and multiple subcutaneous nodules in the abdominal and chest wall. A liver biopsy confirmed the diagnosis of metastatic melanoma. The origin of melanoma was traced to the donor by DNA fingerprinting of the native liver, the donor liver, and the donor gallbladder. Chemotherapy was initiated with temozolomide (75 mg/m² daily) and thalidomide (50 mg daily), to which he responded within 8 weeks with radiologic improvement in metastatic lesions. Tacrolimus was switched to sirolimus because of renal insufficiency as well as reported effectiveness against melanoma. Our patient survived for 9 months after the diagnosis of metastatic melanoma. He ultimately died of brain metastases. Donor-derived metastatic melanoma is a rare cancer with the highest transmission and mortality rates, which requires better recognition. Prompt diagnosis of donor-derived melanoma is critical and can be achieved reliably with polymerase chain reaction-based DNA analysis. Management options after diagnosis include de-escalation of immunosuppression, with or without urgent organ removal or retransplant. The roles of chemotherapy, immunotherapy, and radiotherapy require further study.


Assuntos
Biomarcadores Tumorais/genética , Impressões Digitais de DNA , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/secundário , Transplante de Fígado/efeitos adversos , Melanoma/genética , Melanoma/secundário , Neoplasias Cutâneas/genética , Neoplasias Cutâneas/patologia , Doadores de Tecidos , Biópsia , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/secundário , Progressão da Doença , Evolução Fatal , Humanos , Imunossupressores/uso terapêutico , Neoplasias Hepáticas/terapia , Masculino , Melanoma/terapia , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Fatores de Tempo , Tomografia Computadorizada por Raios X
3.
Liver Transpl ; 17(9): 1027-34, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21594966

RESUMO

Hepatic sarcoidosis is a rare indication for liver transplantation. Using the United Network for Organ Sharing (UNOS)/Organ Procurement and Transplantation Network (OPTN) database, we evaluated patient and graft survival after orthotopic liver transplantation for sarcoidosis between October 1987 and December 2007. We assessed the potential prognostic value of multiple demographic and clinical variables, and we also compared these patients to a case-matched group of patients with primary sclerosing cholangitis (PSC) or primary biliary cirrhosis (PBC). The 1- and 5-year survival rates for the sarcoidosis group were 78% and 61%, respectively, and these rates were significantly worse than the rates for the PSC/PBC group (P = 0.001). Disease recurrence in the liver is a rare cause of graft loss or patient death. Three deaths occurred in the sarcoidosis group because of recurrent hepatic sarcoidosis, and 1 death was a result of cardiac sarcoidosis. A univariate analysis identified an increasing donor risk index as a significant negative factor for outcomes for the sarcoidosis group [hazard ratio (HR) = 2.06, confidence interval (CI) = 1.04-4.06, P = 0.037], but this finding was not found in a multivariate analysis, in which no independent predictors were found to have a significant impact. A case-matched univariate analysis demonstrated that sarcoidosis and morbid obesity were significant negative factors for outcomes, and in a multivariate analysis, sarcoidosis continued to predict worse outcomes (HR = 2.39, CI = 1.21-4.73, P = 0.012). In conclusion, an analysis of the UNOS/OPTN database indicates that the patient and allograft survival rates for hepatic sarcoidosis are satisfactory, but they are worse in comparison with the rates for other cholestatic liver diseases.


Assuntos
Colestase Intra-Hepática/terapia , Transplante de Fígado/métodos , Obtenção de Tecidos e Órgãos/métodos , Adulto , Colestase Intra-Hepática/mortalidade , Estudos de Coortes , Feminino , Humanos , Inflamação , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Modelos de Riscos Proporcionais , Recidiva , Sarcoidose/mortalidade , Sarcoidose/terapia , Resultado do Tratamento
4.
Hepatobiliary Pancreat Dis Int ; 7(6): 581-9, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19073402

RESUMO

BACKGROUND: Ciliated foregut cysts of the liver are rare, with only 96 cases diagnosed since the first description in 1857. They are being increasingly diagnosed recently; the majority of the cases have been reported in the last 15 years. Although they bear a close resemblance to the simple cyst of the liver which has essentially a benign course, ciliated hepatic foregut cysts (CHFCs) can progress to malignancy with devastating consequences. It is imperative that this group of conditions be diagnosed and treated adequately. DATA SOURCES: This review includes discussion of the data from all the 96 reported cases from English and non-English literature. Analysis of the incidence rates, embryogenesis, growth, clinical features, risk of malignancy and the prognosis are highlighted systematically. The roles of various diagnostic modalities including ultrasound, CT, MRI, fine needle aspiration cytology (FNAC), immunohistochemistry and surgery are further discussed. RESULTS: The mean age of patients with CHFC was 48+/-12 years. The male/female ratio was 1.1:1. The majority of patients with CHFC (62%) were asymptomatic, and the common mode of presentation was right upper abdominal pain. The cysts occurred in the left lobe in 51 patients, with sole location in segment IV in 44, and in the right lobe in 26. The average size of the cysts was 3.6+/-2.12 cm. The majority of the cysts were unilocular, and only 7 cases were multilocular. Cyst contents were described as viscous or mucinous in 73 patients, whereas bilious fluid was noted in 3. Large cysts having squamous carcinoma were cited in 3 patients, and 2 had extensive squamous metaplasia without malignancy. Others had benign histopathology. CONCLUSIONS: Clinicians have become increasingly aware of CHFC. Imaging alone is not diagnostic per se, but when considered in the context of the global picture does provide important clues to the diagnosis. FNAC is diagnostic by the presence of the ciliated columnar aspirate but lacks sensitivity. Infantile presentation is usually accompanied by biliary communication and mandates a different surgical approach. The demonstration of malignant transformation in 3 cases and its fatal course emphasizes the need for surgical resection in all cases once the diagnosis is made.


Assuntos
Cílios/patologia , Cistos/epidemiologia , Cistos/patologia , Hepatopatias/epidemiologia , Hepatopatias/patologia , Carcinoma de Células Escamosas/epidemiologia , Carcinoma de Células Escamosas/patologia , Humanos , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/patologia , Fatores de Risco
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