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1.
Ann Palliat Med ; 10(8): 8584-8595, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34379984

RESUMO

BACKGROUND: The efficacy of early allograft dysfunction (EAD) definitions in predicting post-transplant graft survival in a Chinese population is still unclear. METHODS: A total of 607 orthotopic liver transplants (OLT) have been included in the current study. Model accuracy was evaluated using receiver operating characteristic (ROC) analysis. Risk factors for EAD was evaluated using univariable analysis and multivariable logistic regression model. RESULTS: The 3-, 6-, and 12-month patient/graft survival were 91.6%/91.4%, 91.1%/90%, and 87.5%/87.3%, respectively. MELDPOD5 had a superior discrimination of 3-month graft survival (C statistic, 0.83), compared with MEAF (C statistic, 0.77) and Olthoff criteria (C statistic, 0.72). Multivariate analysis of risk factors for EAD defined by MELDPOD5, showed that donor body mass index (P=0.001), donor risk index (P=0.006), intraoperative use of packed red blood cells (P=0.001), hypertension of recipient (P=0.004), and preoperative total bilirubin (P<0.001) were independent risk factors. CONCLUSIONS: The results suggest that MLEDPOD5 is a better criterion of EAD for the Chinese population, which might serve as a surrogate end-point for graft survival in clinical study.


Assuntos
Transplante de Fígado , Disfunção Primária do Enxerto , Aloenxertos , Sobrevivência de Enxerto , Humanos , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo
2.
Oncotarget ; 8(32): 52948-52959, 2017 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-28881785

RESUMO

NEK2 is a member of the NIMA-related family of serine/threonine centrosomal kinases. We analyzed the relationship between differential expression of NEK2 and hepatocellular carcinoma (HCC) patient outcomes after liver transplants. We also studied the microRNAs that affect NEK2 expression. Analysis of multiple microarrays in the Oncomine database revealed that NEK2 expression was higher in HCC tissues than adjacent normal liver tissues. High NEK2 expression correlated with tumor size, pathological grade and macro- and microvascular invasion. Consequently, patients exhibiting high NEK2 expression had poorer prognosis. This was corroborated by our multivariate analysis that showed NEK2 to be an independent prognostic factor for HCC patient survival. Further, high NEK2 expression promoted proliferation, colony formation, migration and invasion of HCC cell lines. Tumor xenograft data from Balb/c nude mice demonstrated that HCC cells with high NEK2 expression formed larger tumors than those with low NEK2 expression. Finally, we showed that miR-486-5p suppressed NEK2 by directly binding to its transcript 3'UTR. We also demonstrated an inverse relationship between miR-486-5p and NEK2 expression in HCC patients. These findings suggest miR-486-5p negatively regulates NEK2, which is a critical prognostic indicator of HCC patient survival after liver transplantation.

3.
Liver Transpl ; 23(9): 1161-1170, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28422396

RESUMO

In liver transplant patients with type 2 diabetes mellitus (DM), the disease worsens after transplantation because of longterm use of diabetogenic immunosuppressive drugs, making management of those patients a great challenge. The objective of our study was to evaluate the safety and efficacy of a simplified multivisceral transplantation (SMT) procedure for the treatment of patients with end-stage liver disease and concurrent type 2 DM. Forty-four patients who had pretransplant type 2 DM were included. A total of 23 patients received SMT, and 21 patients received orthotopic liver transplantation (OLT). Patient and graft survivals, complications, diabetic control, and quality of life (QOL) were retrospectively analyzed in both groups. The 1-, 3-, and 5-year cumulative patient and graft survival rates were 91.5%, 75.4%, and 75.4% in the SMT group and were 94.4%, 64.4%, and 64.4% in the OLT group, respectively (P = 0.70). Interestingly, 95.7% (22/23) of patients achieved complete remission from DM after SMT compared with 16.7% (3/18) of patients after OLT. The occurrence of biliary complication was significantly higher in the OLT group than that in the SMT group (23.8% versus 0.0%; P = 0.01). Moreover, better QOL was observed in the SMT group than that in the OLT group. In conclusion, the SMT procedure we described here is a safe and viable option for patients with end-stage live disease and concurrent type 2 DM. This SMT procedure offers excellent transplant outcomes and QOL. Liver Transplantation 23 1161-1170 2017 AASLD.


Assuntos
Diabetes Mellitus Tipo 2/cirurgia , Doença Hepática Terminal/cirurgia , Imunossupressores/efeitos adversos , Transplante de Fígado/métodos , Complicações Pós-Operatórias/epidemiologia , Adulto , Idoso , Doenças Biliares/epidemiologia , Doenças Biliares/etiologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/mortalidade , Doença Hepática Terminal/complicações , Doença Hepática Terminal/mortalidade , Estudos de Viabilidade , Feminino , Seguimentos , Rejeição de Enxerto/prevenção & controle , Sobrevivência de Enxerto , Humanos , Transplante de Fígado/efeitos adversos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Qualidade de Vida , Estudos Retrospectivos , Inquéritos e Questionários , Taxa de Sobrevida , Resultado do Tratamento
4.
Oncotarget ; 8(3): 4301-4312, 2017 Jan 17.
Artigo em Inglês | MEDLINE | ID: mdl-27935864

RESUMO

OBJECTIVES: Elevated plasma fibrinogen (Fib) correlated with patient's prognosis in several solid tumors. However, few studies have illuminated the relationship between preoperative Fib and prognosis of HCC after liver transplantation. We aimed to clarify the prognostic value of Fib and whether the prognostic accuracy can be enhanced by the combination of Fib and neutrophil-lymphocyte ratio (NLR). RESULTS: Fib was correlated with Child-pugh stage, alpha-fetoprotein (AFP), size of largest tumor, macro- and micro-vascular invasion. Univariate analysis showed preoperative Fib, AFP, NLR, size of largest tumor, tumor number, macro- and micro- vascular invasion were significantly associated with disease-free survival (DFS) and overall survival (OS) in HCC patients with liver transplantation. After multivariate analysis, only Fib and macro-vascular invasion were independently correlated with DFS and OS. Survival analysis showed that preoperative Fib > 2.345 g/L predicted poor prognosis of patients HCC after liver transplantation. Preoperative Fib showed prognostic value in various subgroups of HCC. Furthermore, the predictive range was expanded by the combination of Fib and NLR. MATERIALS AND METHODS: Data were collected retrospectively from 130 HCC patients who underwent liver transplantation. Preoperative Fib, NLR and clinicopathologic variables were analyzed. The survival analysis was performed by the Kaplan-Meier method, and compared by the log-rank test. Univariate and multivariate analyses were performed to identify the prognostic factors for DFS and OS. CONCLUSIONS: Preoperative Fib is an independent effective predictor of prognosis for HCC patients, higher levels of Fib predict poorer outcomes and the combination of Fib and NLR enlarges the prognostic accuracy of testing.


Assuntos
Carcinoma Hepatocelular/cirurgia , Fibrinogênio/metabolismo , Neoplasias Hepáticas/cirurgia , Neutrófilos/citologia , Adolescente , Adulto , Idoso , Carcinoma Hepatocelular/sangue , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/patologia , Feminino , Humanos , Neoplasias Hepáticas/sangue , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Transplante de Fígado , Contagem de Linfócitos , Masculino , Pessoa de Meia-Idade , Período Pré-Operatório , Prognóstico , Estudos Retrospectivos , Análise de Sobrevida , Carga Tumoral , Adulto Jovem , alfa-Fetoproteínas/metabolismo
5.
Medicine (Baltimore) ; 95(27): e4065, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27399091

RESUMO

Serum enzymes, including lactate dehydrogenase (LDH) and alkaline phosphatase (ALP), have recently been reported to play important roles in tumor growth. Increases in LDH and ALP have been confirmed to predict poor prognosis in patients with various cancers. However, their prognostic value in pancreatic cancer has not been well studied. Therefore, we reviewed the preoperative data on LDH and ALP in 185 pancreatic ductal adenocarcinoma (PDAC) patients who underwent surgery between July 2005 and December 2010 to explore the prognostic value of these markers. The cutoff points were determined based on the upper limit of their normal values. The Chi-square test was used to analyze the relationships between LDH/ALP and clinical characteristics. Univariate and multivariate analyses were performed to identify the predictive value of the above factors for disease-free survival (DFS) and overall survival (OS). We found that elevation of LDH was related to carbohydrate antigen 19-9 (CA19-9), lymph node involvement, tumor size, TNM, distant metastasis, and recurrence. Additionally, ALP was correlated to perineural invasion. After multivariate analysis, LDH and ALP were identified as independent prognostic factors for DFS and OS, and elevation of LDH/ALP was correlated with poor DFS and OS. Notably, there was a positive correlation between LDH and ALP. The predictive power of LDH combined with ALP was more sensitive than that of either one alone. Therefore, we conclude that the preoperative LDH and ALP values are prognostic factors for PADC, and the prognostic accuracy of testing can be enhanced by the combination of LDH and ALP.


Assuntos
Adenocarcinoma/enzimologia , Fosfatase Alcalina/sangue , Carcinoma Ductal Pancreático/enzimologia , L-Lactato Desidrogenase/sangue , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/sangue , Carcinoma Ductal Pancreático/patologia , Carcinoma Ductal Pancreático/cirurgia , Diagnóstico por Imagem , Feminino , Humanos , Excisão de Linfonodo , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Pancreaticoduodenectomia , Valor Preditivo dos Testes , Prognóstico , Taxa de Sobrevida
6.
Hepatobiliary Pancreat Dis Int ; 15(1): 65-72, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26818545

RESUMO

BACKGROUND: The deficiency of liver regeneration needs to be addressed in the fields of liver surgery, split liver transplantation and living donor liver transplantation. Researches of microRNAs would broaden our understandings on the mechanisms of various diseases. Our previous research confirmed that miR-26a regulated liver regeneration in mice; however, the relationship between miR-26a and its target, directly or indirectly, remains unclear. Therefore, the present study further investigated the mechanism of miR-26a in regulating mouse hepatocyte proliferation. METHODS: An established mouse liver cell line, Nctc-1469, was transfected with Ad5-miR-26a-EGFP, Ad5-anti-miR-26a-EGFP or Ad5-EGFP vector. Cell proliferation was assessed by MTS, cell apoptosis and cell cycle by flow cytometry, and gene expression by Western blotting and quantitative real-time PCR. Dual-luciferase reporter assays were used to test targets of miR-26a. RESULTS: Compared with the Ad5-EGFP group, Ad5-anti-miR-26a-EGFP down-regulated miR-26a and increased proliferation of hepatocytes, with more cells entering the G1 phase of cell cycle (82.70%+/-1.45% vs 75.80%+/-3.92%), and decreased apoptosis (5.50%+/-0.35% vs 6.73%+/-0.42%). CCND2 and CCNE2 were the direct targeted genes of miR-26a. miR-26a down-regulation up-regulated CCND2 and CCNE2 expressions and down-regulated p53 expression in Nctc-1469 cells. On the contrary, miR-26a over-expression showed the opposite results. CONCLUSIONS: miR-26a regulated mouse hepatocyte proliferation by directly targeting the 3' untranslated regions of cyclin D2/cyclin E2; miR-26a also regulated p53-mediated apoptosis. Our data suggested that miR-26a may be a promising regulator in liver regeneration.


Assuntos
Regiões 3' não Traduzidas , Proliferação de Células , Ciclina D2/metabolismo , Ciclinas/metabolismo , Hepatócitos/metabolismo , Regeneração Hepática , MicroRNAs/metabolismo , Animais , Apoptose , Sítios de Ligação , Ciclo Celular , Linhagem Celular , Ciclina D2/genética , Ciclinas/genética , Regulação da Expressão Gênica , Camundongos , MicroRNAs/genética , Transdução de Sinais , Fatores de Tempo , Transfecção , Proteína Supressora de Tumor p53/genética , Proteína Supressora de Tumor p53/metabolismo
7.
J Huazhong Univ Sci Technolog Med Sci ; 34(5): 687-691, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25318878

RESUMO

Donation after brain death followed by circulatory death (DBCD) is a unique practice in China. The aim of this study was to define the pathologic characteristics of DBCD liver allografts in a porcine model. Fifteen male pigs (25-30 kg) were allocated randomly into donation after brain death (DBD), donation after circulatory death (DCD) and DBCD groups. Brain death was induced by augmenting intracranial pressure. Circulatory death was induced by withdrawal of life support in DBCD group and by venous injection of 40 mL 10% potassium chloride in DCD group. The donor livers were perfused in situ and kept in cold storage for 4 h. Liver tissue and common bile duct samples were collected for hematoxylin and eosin staining, TUNEL testing and electron microscopic examination. Spot necrosis was found in hepatic parenchyma of DBD and DBCD groups, while a large area of necrosis was shown in DCD group. The apoptosis rate of hepatocytes in DBD [(0.56±0.30)%] and DBCD [(0.50 ± 0.11)%] groups was much lower than that in DCD group [(3.78±0.33)%] (P<0.05). And there was no significant difference between DBD group and DBCD group (P>0.05)). The structures of bile duct were intact in both DBD and DBCD groups, while the biliary epithelium was totally damaged in DCD group. Under electron microscope, the DBD hepatocytes were characterized by intact cell membrane, well-organized endoplasmic reticulum, mild mitochondria edema and abundant glycogens. Broken cell membrane, mild inflammatory cell infiltration and sinusoidal epithelium edema, as well as reduced glycogen volume, were found in the DBCD hepatocytes. The DCD hepatocytes had more profound cell organelle injury and much less glycogen storage. In conclusion, the preservation injury of DBCD liver allografts is much less severe than that of un-controlled DCD, but more severe than that of DBD liver allografts under electron microscope, which might reflect post-transplant liver function to some extent.


Assuntos
Transplante de Fígado/métodos , Preservação de Órgãos/métodos , Doadores de Tecidos , Obtenção de Tecidos e Órgãos/métodos , Aloenxertos , Animais , Apoptose , Morte Encefálica , China , Morte , Parada Cardíaca , Hepatócitos/patologia , Hepatócitos/ultraestrutura , Humanos , Marcação In Situ das Extremidades Cortadas , Fígado/patologia , Fígado/ultraestrutura , Microscopia Eletrônica , Suínos
8.
Hepatobiliary Pancreat Dis Int ; 13(4): 409-15, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25100126

RESUMO

BACKGROUND: In 2011, a pilot program for deceased organ donation was initiated in China. We describe the first successful series of liver transplants in the pilot program. METHODS: From July 2011 to August 2012, our center performed 26 liver transplants from a pool of 29 deceased donors. All organ donation and allograft procurement were conducted according to the national protocol. The clinical data of donors and recipients were collected and summarized retrospectively. RESULTS: Among the 29 donors, 24 were China Category II donors (organ donation after cardiac death), and five were China Category III donors (organ donation after brain death followed by cardiac death). The recipients were mainly the patients with hepatocellular carcinoma. The one-year patient survival rate was 80.8% with a median follow-up of 422 (2-696) days. Among the five mortalities during the follow-up, three died of tumor recurrence. In terms of post-transplant complications, 9 recipients (34.6%) experienced early allograft dysfunction, 1 (3.8%) had non-anastomotic biliary stricture, and 1 (3.8%) was complicated with hepatic arterial thrombosis. None of these complications resulted in patient death. Notably, primary non-function was not observed in any of the grafts. CONCLUSION: With careful donor selection, liver transplant from deceased donors can be performed safely and plays a critical role in overcoming the extreme organ shortage in China.


Assuntos
Morte Encefálica , Carcinoma Hepatocelular/cirurgia , Seleção do Doador , Cardiopatias/mortalidade , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/métodos , Doadores de Tecidos/provisão & distribuição , Adulto , Idoso , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , China , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Projetos Piloto , Avaliação de Programas e Projetos de Saúde , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
9.
Zhonghua Yi Xue Za Zhi ; 92(18): 1264-7, 2012 May 15.
Artigo em Chinês | MEDLINE | ID: mdl-22883065

RESUMO

OBJECTIVE: To evaluate the efficacy and safety of sorafenib in the prevention and treatment of hepatocellular carcinoma (HCC) relapse after liver transplantation. METHODS: A retrospective cohort study was performed to assess the efficacy and safety of sorafenib for HCC. Forty-four patients who underwent liver transplant for HCC beyond Milan criteria form July 2007 to May 2010 were included study group (sorafenib, n = 22) and control group (without sorafenib, n = 22). The primary endpoints of the study were disease-free survival (DFS), overall survival (OS). Secondary outcomes included the rates of acute rejection and graft survival. RESULTS: The clinical data of 44 patients were completely collected. There were significantly differences between sorafenib group and control group in 1-year DFS (81.8% (n = 18) vs 63.6% (n = 14), P < 0.05) and OS (90.9% (n = 20) vs 72.7% (n = 16), P < 0.05) respectively. The acute rejection rates in Sorafenib were 13.6% (3/22), compared with 18.2% (4/22) in control group (P = 0.524) and 1-year graft survival in Sorafenib group were 86.4% (19/22), compared with 72.7% (16/22) in control group (P = 0.086). The overall incidence of treatment-related adverse events was 68.1% (n = 15) in sorafenib group and 31.8% (n = 7) in the control group (P < 0.01). Adverse events that were reported for patients receiving sorafenib were predominantly grade 1 or 2 in severity including diarrhea (45.5%, n = 10), liver dysfunction (40.9%, n = 9), hand-foot skin reaction (31.8%, n = 7) and pains of head and four limbs (22.7%, n = 5). Two patients with grade 3 adverse events in study group were stopped continuing to use the sorafenib. Three patients with the dose of 400 mg twice daily and 17 patients with the dose reduction of sorafenib continued to the study endpoint. CONCLUSION: Patients with HCC undergoing liver transplantation could get the benefits of Sorafenib in reducing the incidence of tumor recurrence and extending disease-free and overall survival time.


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Niacinamida/análogos & derivados , Compostos de Fenilureia/uso terapêutico , Adolescente , Adulto , Idoso , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/cirurgia , Estudos de Coortes , Feminino , Humanos , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Pessoa de Meia-Idade , Niacinamida/uso terapêutico , Estudos Retrospectivos , Sorafenibe , Resultado do Tratamento , Adulto Jovem
10.
Zhonghua Wai Ke Za Zhi ; 50(3): 222-5, 2012 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-22800744

RESUMO

OBJECTIVE: To investigate the clinical characteristics, diagnosis and treatment of digestive tract leakage after orthotopic liver transplantation (OLT). METHODS: Sixty-one recipients had digestive tract leakage in early stage after OLT among 1173 cases from January 2000 to December 2010. There were 55 male and 6 female patients, aging from 36 to 61 years, with a median of 45 years. Digestive tract leakage included bile leakage (46 cases), gastric leakage (5 cases), duodenal leakage (1 case), jejunal leakage (4 cases), ileal leakage (1 case) and colon transversum leakage (4 cases). Ten of recipients with gastrointestinal leakage had 1 to 3 times of abdominal surgery before OLT. Abdominal drainage was used in 28 cases with bile leakage, and additionally, endoscopic retrograde cholangiopancreatography, endoscopic nasobiliary drainage and stenting were performed for 8 of them, and surgical neoplasty for another 18 patients with bile leakage. Simple surgical neoplasty of perforation was performed for 13 patients with gastrointestinal leakage, and diverticulectomy and neoplasty for 1 case with duodenal leakage, and partial jejunostomy for one severe jejunal leakage. Nutritional support was administered for all of cases. RESULTS: The incidence rate of digestive tract leakage in early stage after OLT was 5.20% (61/1173). Intra-operative iatrogenic injury of gastrointestinal tract was occurred in 6 cases with gastrointestinal leakage. After treatment, 11 cases died of multiple organ failure resulted from severe infection, with mortality of 18.0% (11/61), including 4 cases with bile leakage, with the mortality of 8.6% (4/46), and 7 cases with gastrointestinal tract leakage, with the mortality of 46.6% (7/15). The remanent 50 cases through comprehensive treatment with a span of 1 to 3 months recovered and discharged healthily. No digestive tract leakage reoccurred in the follow-up of 6 to 84 months. CONCLUSIONS: The morbidity of digestive tract leakage in early stage after OLT is low, but its mortality is high, especially for gastrointestinal tract leakage. High dose corticosteroids therapy, history of abdominal operation and intra-operative iatrogenic injury may be high risk factor. Comprehensive treatment is crucial for improving prognosis.


Assuntos
Fístula do Sistema Digestório/terapia , Transplante de Fígado/efeitos adversos , Complicações Pós-Operatórias/terapia , Adulto , Fístula do Sistema Digestório/diagnóstico , Fístula do Sistema Digestório/etiologia , Drenagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico
11.
Exp Clin Transplant ; 10(3): 258-62, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22631063

RESUMO

OBJECTIVES: To investigate the efficacy and safety of an immunosuppressive regimen of steroid avoidance in combination with induction therapy and tacrolimus in liver transplant recipients. MATERIALS AND METHODS: Eighty-two adult liver transplant recipients were randomized into 2 groups: standard protocol group (n=41) in which steroids were withdrawn 3 months after the operation, and a 24-hour steroid avoidance group (n=41) in which steroids were eliminated within 24 hours. The incidence of acute rejections, infections (bacterial, fungal, and cytomegalovirus), and metabolic complications were analyzed between the groups. RESULTS: The incidence of early posttransplant diabetes mellitus and the average dosage of insulin consumption among diabetic recipients were significantly higher in recipients in the standard protocol group than in the 24-hour avoidance group (P < .05). In addition, the incidence of hypertension and infection during the follow-up were also higher in patients of the standard protocol group (P < .05). The incidence of hypertension in the early posttransplant period, hyperlipemia, and acute rejection during the follow-up were comparable between the groups (P > .05). CONCLUSIONS: Twenty-four hour steroid avoidance combined with induction therapy and tacrolimus maintenance is a safe and efficient immunosuppression strategy that can significantly reduce posttransplant infections and other complications owing to long-term use of steroids, without increasing the risk of acute rejection.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Rejeição de Enxerto/prevenção & controle , Imunossupressores/uso terapêutico , Transplante de Fígado/imunologia , Proteínas Recombinantes de Fusão/uso terapêutico , Esteroides/uso terapêutico , Tacrolimo/uso terapêutico , Suspensão de Tratamento , Adulto , Idoso , Basiliximab , China , Diabetes Mellitus/epidemiologia , Quimioterapia Combinada , Feminino , Seguimentos , Rejeição de Enxerto/epidemiologia , Humanos , Hipertensão/epidemiologia , Incidência , Estimativa de Kaplan-Meier , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Fatores de Tempo
12.
Zhonghua Gan Zang Bing Za Zhi ; 20(1): 14-6, 2012 Jan.
Artigo em Chinês | MEDLINE | ID: mdl-22464699

RESUMO

OBJECTIVE: To evaluate the outcomes of liver transplant recipients who received liver allografts from hepatitis B surface antigen (HBsAg)-positive donors. METHODS: The medical records of 23 male patients (median age, 42.5 years; range: 29-61) who received HBsAg-(+) liver allografts in our organ transplant center were retrospectively analyzed. All patients had confirmed diagnosis of end-stage liver disease (ESLD) secondary to hepatitis B virus (HBV) infection, including 13 HBsAg(+)/HBeAg(-)/HBcAb(+) cases and 10 HBsAg(+)/HBeAb(+)/HBcAb(+) cases. After transplantation, all patients were administered oral entecavir and intravenous anti-hepatitis B immunoglobulin (HBIG) (2000 IU/d during the first week), along with a steroid-free immune suppression regimen. HBV-related antigen and antibody and HBV DNA were detected on post-transplantation days 1, 7, 14, 21, and 30. The liver allografts were monitored by ultrasound imaging. After discharge, monthly follow-up recorded liver function, renal function, acute rejection, infections, vascular complications, biliary complications, HBV recurrence, cancer recurrence, and patient survival. RESULTS: Two of the recipients died from severe perioperative pneumonia. The remaining 21 recipients were followed-up for 10 to 38 months, and all 21 patients remained HBsAg(+). One recipient developed biliary ischemia and required a second liver transplantation at five months after the primary transplantation. Three recipients (all primary) died from tumor recurrence at 9, 14, and 18 months post-transplantation, respectively. All other recipients survived and had acceptably low HBV DNA copy levels. Color Doppler imaging showed good graft function and normal texture. The patient and graft survival rates were 78.3% (18/23) and 73.9% (17/23), respectively. The recurrence rate of HBV infection was 100% (23/23). In surviving patients, no liver function abnormality, graft loss, or death was found to be related to the recurrence of HBV infection. CONCLUSION: Liver transplantation using HBsAg(+) liver grafts was safe for patients with ESLD secondary to HBV infection.


Assuntos
Doença Hepática Terminal/cirurgia , Antígenos de Superfície da Hepatite B/imunologia , Transplante de Fígado/imunologia , Transplante de Fígado/métodos , Adulto , Doença Hepática Terminal/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva , Estudos Retrospectivos , Doadores de Tecidos
13.
Hepatobiliary Pancreat Dis Int ; 11(2): 137-42, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22484580

RESUMO

BACKGROUND: Steroids have been the mainstay of immunosuppressive regimen in liver transplantation. However, the use of steroids is associated with various post-transplant complications. This study evaluated the efficacy and safety of reduced immunosuppressive regimen with steroids (steroid elimination within 24 hours post-transplant) in a cohort of Chinese liver transplant recipients. METHODS: Seventy-six patients in line with the selection criteria were enrolled in this prospective study. All patients received anti-IL-2 receptor antibody induction and tacrolimus-based maintenance therapy. The recipients were divided into two groups according to the duration of steroid use: 40 transplant in a 3-month withdrawal group and the remaining 36 in a 24-hour elimination group. Recipient survival, post-operative infections, biopsy-proven acute rejection and steroid-resistant acute rejection, non-healing wound, recurrence of hepatitis B virus (HBV) and hepatocellular carcinoma (HCC), de novo diabetes, hyperlipidemia and hypertension were assessed in the two groups. RESULTS: There was no significant difference in patient survival, incidence of acute rejection episodes and hyperlipidemia, and recurrence of HBV and HCC between the two groups. However, the incidence rates of post-transplant infection, non-healing wound, de novo diabetes and hypertension were significantly lower in the 24-hour elimination group than in the 3-month withdrawal group (all P values <0.05). CONCLUSION: Under anti-IL-2 receptor antibody induction and tacrolimus-based maintainance, steroid elimination within 24 hours post-transplant is associated with reduced steroid-related complications without increasing the risk of rejection.


Assuntos
Rejeição de Enxerto/imunologia , Rejeição de Enxerto/prevenção & controle , Transplante de Fígado/imunologia , Esteroides/efeitos adversos , Esteroides/uso terapêutico , Suspensão de Tratamento , Anticorpos Anti-Idiotípicos/efeitos adversos , Anticorpos Anti-Idiotípicos/uso terapêutico , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/cirurgia , China , Seguimentos , Hepatite B/epidemiologia , Hepatite B/mortalidade , Hepatite B/cirurgia , Humanos , Imunossupressores/efeitos adversos , Imunossupressores/uso terapêutico , Incidência , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/mortalidade , Estudos Prospectivos , Receptores de Interleucina-2/imunologia , Recidiva , Taxa de Sobrevida , Tacrolimo/efeitos adversos , Tacrolimo/uso terapêutico , Fatores de Tempo , Resultado do Tratamento
14.
Exp Clin Transplant ; 10(2): 132-5, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22432756

RESUMO

OBJECTIVES: To evaluate the efficacy and safety of conversion from calcineurin inhibitors to sirolimus among liver transplant recipients with calcineurin inhibitor-induced complications. MATERIALS AND METHODS: After receiving liver transplants, 25 patients with calcineurin inhibitor-induced complications (22 renal dysfunction and 3 new-onset diabetes mellitus) were converted from sirolimus to tacrolimus. The serum creatinine, sirolimus trough level, liver function, acute rejection episodes, and drug-related adverse effects were monitored. RESULTS: The patients were followed for 12 to 50 months (median, 25 months). The renal function of the 22 patients with renal dysfunction improved after sirolimus conversion. The serum creatinine levels were significantly lower at 3 months after conversion versus before conversion (113.2 ± 21.8 µmol/L vs 163.2 ± 45.3 µmol/L; P < .05). At the end of the follow-up, the average serum creatinine level was 101.9 ± 23.4 µmol/L among the 20 living recipients. Diabetes also was under control in 3 diabetic recipients after the conversion. Four patients experienced episodes of acute rejection, and intravenous steroid bolus therapy was administered in 2 of them. No graft was lost because of acute rejection. The adverse effects of sirolimus included hyperlipidemia (7/25), anemia (8/25), and mouth ulcers (9/25). All these adverse effects were relieved after a short-term symptomatic therapy, and no patient was withdrawn from the conversion trial. CONCLUSIONS: Sirolimus monotherapy is effective and safe in liver transplant recipients. Conversion to sirolimus was associated with a sustained improvement in renal function and diabetes mellitus without an increased incidence of acute rejection episodes.


Assuntos
Inibidores de Calcineurina , Rejeição de Enxerto/tratamento farmacológico , Transplante de Fígado , Sirolimo/administração & dosagem , Tacrolimo/efeitos adversos , Doença Aguda , Anemia/induzido quimicamente , Creatinina/sangue , Diabetes Mellitus Tipo 2/induzido quimicamente , Seguimentos , Humanos , Hiperlipidemias/induzido quimicamente , Imunossupressores/administração & dosagem , Imunossupressores/efeitos adversos , Masculino , Pessoa de Meia-Idade , Úlceras Orais/induzido quimicamente , Estudos Retrospectivos , Sirolimo/efeitos adversos , Tacrolimo/administração & dosagem
16.
Zhonghua Yi Xue Za Zhi ; 91(22): 1529-32, 2011 Jun 14.
Artigo em Chinês | MEDLINE | ID: mdl-21914364

RESUMO

OBJECTIVE: To investigate the feasibility and management of retransplantation for diffuse biliary strictures occurring after initial liver transplantation. METHODS: The clinical data of 53 consecutive liver retransplantation patients at our hospital from January 2001 to December 2009 were collected and analyzed retrospectively. Among them, 20 (37.7%) were due to diffuse biliary strictures. RESULTS: Diffuse biliary strictures appeared at 3 - 16 months after initial transplantation. The mean time was 6.3 months. The specific types included intra-hepatic diffuse biliary strictures (n = 16) and multi-strictures involving both intra- & extra-hepatic biliary ducts (n = 4). Retransplantation was performed after a failure of intervention or/and other comprehensive treatments. Among them, 14 were cured and 6 died from peri-operative complications including serious abdominal infection & MODS (multiple organ dysfunction syndrome) (n = 3, 50%), biliary fistula (n = 2, 33.3%) and hepatic artery embolism (n = 1, 16.7%). These patients were followed up for a mean time of 1.8 years (range: 1 - 5 years). The accumulative survival rates at 1, 3 and 6 months were 80.0%, 75.0% and 70.0% respectively. CONCLUSIONS: Liver retransplantation is the ultimate treatment for diffuse biliary strictures after liver transplantation. The survival rate is associated with operative timing, surgical techniques and peri-operative management.


Assuntos
Doenças dos Ductos Biliares/cirurgia , Transplante de Fígado/métodos , Complicações Pós-Operatórias/cirurgia , Adulto , Idoso , Doenças dos Ductos Biliares/etiologia , Ductos Biliares Intra-Hepáticos/patologia , Constrição Patológica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reoperação , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem
17.
Zhonghua Wei Chang Wai Ke Za Zhi ; 14(5): 343-6, 2011 May.
Artigo em Chinês | MEDLINE | ID: mdl-21614688

RESUMO

OBJECTIVE: To summarize the treatment outcomes after combined en bloc liver and pancreas transplantation. METHODS: Five patients with end-stage liver disease and type 2 diabetes mellitus received combined en bloc liver and pancreas transplantation after hepatectomy. RESULTS: Five operations were performed successfully. The operative time ranged from 9 to 16 hours and blood loss from 1600 to 3000 ml. Postoperatively, one patients developed pulmonary infection, one died of graft-versus-host disease(GVHD), and one experienced acute renal failure. No intestinal fistula, anastomotic leakage, biliary complications, chronic and acute rejection and pancreatitis were seen. Liver function index including alanine aminotransferase, aspartate aminotransferase and total bilirubin returned to normal levels a week after surgery, while levels of C peptide and blood glucose resumed within 1 to 2 weeks. Apart from 1 case died of GVHD, the other 4 maintained normal liver function during the follow up ranging from 2 to 23 months and no insulin was required for the diabetes. CONCLUSION: Combined en bloc liver and pancreas transplantation is technically feasible and an effective treatment for multi-organ diseases.


Assuntos
Diabetes Mellitus Tipo 2/cirurgia , Falência Hepática/cirurgia , Transplante de Fígado , Transplante de Pâncreas , Adulto , Diabetes Mellitus Tipo 2/complicações , Feminino , Humanos , Falência Hepática/complicações , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
18.
Zhonghua Wei Chang Wai Ke Za Zhi ; 14(3): 199-201, 2011 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-21442484

RESUMO

OBJECTIVE: To investigate the effect of Campath-1H induction on immunosuppression in small intestine transplantation. METHODS: Clinical data of a patient who underwent small intestine transplantation were retrospectively summarized. RESULTS: Intraoperative Campath-1H induction by intravenous injection was administered. Triple immunosuppression(FK506, MMF and methylprednisolone) was used postoperatively. The lymphocyte and leukocyte decreased significantly following Campath-1H induction, and returned to normal after adjusting the dose of immunosuppressant and use of colony stimulating factor. There were no acute rejection, graft versus host disease, or severe infection during the immediate postoperative period. The patient recovered and discharged. CONCLUSION: Intraoperative Campath-1H induction and postoperative triple immunosuppression using FK506, MMF, and methylprednisolone may prevent rejection and graft versus host disease in the early stage after small intestine transplantation.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Terapia de Imunossupressão , Imunossupressores/uso terapêutico , Intestino Delgado/transplante , Adulto , Alemtuzumab , Rejeição de Enxerto/prevenção & controle , Humanos , Masculino , Estudos Retrospectivos
19.
Zhonghua Yi Xue Za Zhi ; 91(36): 2558-60, 2011 Sep 27.
Artigo em Chinês | MEDLINE | ID: mdl-22321886

RESUMO

OBJECTIVE: To evaluate the efficacy and safety of ABO-incompatible liver transplantation in adult patients with fulminant hepatitis B. METHODS: The clinical data of 97 cases of adult liver transplantation for fulminant hepatitis B were retrospectively analyzed. The patients were grouped as ABO-identical (ABO-Id, n = 58), ABO-compatible (ABO-C, n = 19) and ABO-incompatible (ABO-In, n = 20). The rates of rejection, infection, biliary tract complications, vascular complications, and patient and graft survivals were compared among 3 groups. RESULTS: The 3-month, 1-year and 3-year graft survival rates were 87.9%/77.6%/65.3% in ABO-Id group, 84.2%/73.7%/66.5% in ABO-C group and 50.0%/35.0%/33.3% in ABO-In group respectively. There were significant differences between ABO-Id and ABO-In (P < 0.05). The incidences of rejection, infection, vascular complications and biliary tract complications were 8.6%, 20.7%, 3.4% and 6.9% in ABO-Id group, 35%, 60%, 20% and 30% in ABO-In group (P < 0.05) and 10.5%, 26.3%, 5.3% and 10.5% respectively in ABO-C group (P > 0.05). CONCLUSION: ABO-C liver transplantation is an important therapeutic option in adult patients with acute liver failure awaiting an emergency procedure. ABO-In transplantation can be used only for life-rescuing in patients with fulminant hepatitis since it is associated with a higher risk of rejection, infection, vascular thrombosis, ischemic bile duct complications and poor patient and graft survival.


Assuntos
Rejeição de Enxerto , Transplante de Fígado , Sistema ABO de Grupos Sanguíneos , Adulto , Incompatibilidade de Grupos Sanguíneos , Sobrevivência de Enxerto , Humanos
20.
Zhonghua Yi Xue Za Zhi ; 91(42): 2977-80, 2011 Nov 15.
Artigo em Chinês | MEDLINE | ID: mdl-22333023

RESUMO

OBJECTIVE: To explore the resistance rate, risk factors and mortality of Escherichia coli bloodstream infections (BSI) after liver transplantation. METHODS: From January 1993 to May 2010, a retrospective analysis of Escherichia coli in liver transplants were conducted. RESULTS: A total of 88 BSI occurred in 83/695 patients and Escherichia coli (n = 23) was most commonly found. Carbapenem and piperacillin-tazobactam were the most consistently active against Escherichia coli while the resistance rate to enterococcus for ciprofloxacin, gentamycin, ampicillin-clavulanic acid was over 60%. Univariate analysis identified the following variables as risk factors for Escherichia coli bacteremia: cholangioenterostomy (P < 0.001) and ductal complications (P < 0.001). Escherichia coli bloodstream infection could increase the mortality at 15 days after bloodstream infection. No significant difference in mortality occurred at 30 days and 1 year after enterococcal bacteremia. CONCLUSION: Escherichia coli after liver transplantation is resistant to agents but commonly active to carbapenem and piperacillin-tazobactam. The risk factor associated with Escherichia coli bloodstream infections are cholangioenterostomy and ductal complications. Escherichia coli bloodstream infection can increase the mortality at 15 days after bloodstream infection.


Assuntos
Bacteriemia/mortalidade , Farmacorresistência Bacteriana , Infecções por Escherichia coli/mortalidade , Escherichia coli/efeitos dos fármacos , Transplante de Fígado/efeitos adversos , Antibacterianos/farmacologia , Bacteriemia/etiologia , Infecções por Escherichia coli/etiologia , Feminino , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida
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