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1.
Clin Microbiol Infect ; 21(11): 1020-6, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26163105

RESUMO

The present study was designed to determine the seroprevalence of hepatitis B and C virus (HBV, HCV) infections and risk factors in the Turkish general population. Participants were enrolled from urban and rural areas of the predetermined 23 EUROSTAT NUTS 2 region. A two-stage stratified sampling method was used to select participants from these regions (n = 5460; 50.9% females; mean (SD) age: 40.8 (14.7) years). Sociodemographics, clinical characteristics and risk factors were recorded at home visits. The seropositivity rates for hepatitis B surface antigen (HBsAg), anti-HCV, anti-HBs and anti-HBc total were 4.0%, 1.0%, 31.9% and 30.6%, respectively. Among HBsAg-positive cases, 94.5% were anti-HBe-positive, 70.2% were HBV-DNA-positive and 2.8% were anti-HDV total positive; 99.1% of HBV infections were of genotype D. Close contact with a hepatitis patient (OR 3.24; 95% CI 2.25-4.66; p < 0.001), living in the southeastern region (OR 2.74; 95% CI 1.7-4.45; p < 0.001), male gender (OR 1.77; 95% CI 1.28-2.46; p < 0.001), being married (OR 1.62; 95% CI 1.02-2.57; p 0.038), educational level less than high school (OR 1.53; 95% CI 1.04-2.26; p 0.03), orodental interventions (OR 1.54; 95% CI 1.01-2.35; p 0.047) and a history of non-disposable syringe use (OR 1.4; 95% CI 1.01-1.96; p 0.045) were significant determinants of HBsAg positivity. Age ≥50 years (OR 2; 95% CI 1.09-4.3; p 0.026) was the only significant predictor of anti-HCV positivity. In conclusion, our findings revealed an HBsAg positivity in 4% and anti-HCV positivity in 1% of the adult population and at least one-third of the population has been exposed to HBV infection in Turkey.


Assuntos
Hepatite B/epidemiologia , Hepatite C/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Demografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , População Rural , Estudos Soroepidemiológicos , Turquia/epidemiologia , População Urbana , Adulto Jovem
2.
Transplant Proc ; 41(9): 3806-9, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19917392

RESUMO

BACKGROUND: Although end of treatment virological responses are similar in posttransplant patients with recurrent chronic hepatitis C virus infection and nontransplant patients, the sustained virological response rate is lower in the posttransplant setting. We investigated the efficacy of a longer duration (3 years) of therapy. METHODS: Thirteen patients with biopsy-proven recurrent hepatitis C were included in the study. In the first year of therapy, all patients were treated with a standard regimen of interferon alpha 2b 3MU 3 times in a week plus ribavirin (800 to 1000 mg/d). After the availability of pegylated interferon, patients were converted to pegylated interferon (1.5 microg/kg body weight). Hepatitis C virus RNA was evaluated at months 3, 6, 9, 12, 24, 36, and 42. If hepatitis C virus RNA was negative at month 12, the patients continued treatment for 36 months. RESULTS: Hepatitis C virus RNA was negative in six patients at 12 months, including two who became hepatitis C virus RNA negative after 3 months; two, after 6 months; and two, after 12 months of therapy. Those six continued treatment completing 3 years of treatment with a sustained virological response. Four of those six patients with sustained virological response required colony-stimulating factors during treatment. CONCLUSION: Although the hepatitis C virus RNA status of patients at 12 weeks is a good marker to predict a sustained virological response in the nontransplant setting, it is not valid in posttransplant patients. A prolonged duration of therapy for patients who are viral responders at 12 months may prevent recurrence and increase the sustained virological response rate.


Assuntos
Antivirais/uso terapêutico , Hepatite C/tratamento farmacológico , Complicações Pós-Operatórias/virologia , Adulto , Quimioterapia Combinada , Feminino , Hepatite C/cirurgia , Humanos , Inflamação/virologia , Transplante de Fígado , Masculino , Pessoa de Meia-Idade , Projetos Piloto , RNA Viral/sangue , Recidiva , Resultado do Tratamento , Carga Viral
3.
Transplant Proc ; 40(5): 1511-7, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18589140

RESUMO

BACKGROUND/AIMS: Hepatitis B virus (HBV) and hepatocellular carcinoma (HCC) recurrences affect both patient and graft survivals post-orthotopic liver transplantation (OLT) in HBV patients with HCC. We analyzed the relationship between HBV and HCC recurrence in a large cohort of HBV-OLT patients with versus without HCC. METHODS: Two hundred eighty-seven HBV patients with OLT (72 also with HCC) were included in the study. Mean follow-up in the post-OLT period was 31.7 +/- 24.7 (range, 3-119) months. RESULTS: Post-OLT HBV recurrence observed in 10.1% of patients was more prevalent among the HCC group; 23.6% versus 5.5% in patients with and without HCC, respectively. The mean interval for the development of HBV recurrence was 39.5 +/- 28.5 (range, 2-99) months. Among 72 HCC patients, 8 patients (11.1%) had recurrent HCC, and 7 of them also had HBV recurrence. The mean interval for the development of HCC recurrence was 11.2 +/- 7.85 (range, 2-23) months after OLT. OLT patients with HCC with tumors exceeding the Milan criteria had worse 1-, 3-, and 5-year survival rates than patients with HCC meeting the Milan criteria. HBV and HCC recurrence-free survivals were significantly lower in patients with HCC and HBV recurrence, respectively. In the 7 patients with both HCC and HBV recurrence, mean HBV recurrence time was 9.42 +/- 6.75 months and mean HCC recurrence time was 9.57 +/- 6.75 months. There was a strong correlation between HBV and HCC recurrence times. Cox proportional hazards regression analysis showed that only HCC recurrence was a significant independent predictor of HBV recurrence (P < .001; hazard ratio [HR] = 26.94; 95% confidence interval [CI] = 10.81-67.11). On the other hand, HBV recurrence (P = .013; HR = 5.80; 95% CI = 1.45-23.17) and nodule count (P = .014; HR = 13.08; 95% CI = 1.70-100.83) were significant predictors of HCC recurrence. CONCLUSIONS: HBV and HCC recurrences demonstrate a close relationship in patients with OLT.


Assuntos
Carcinoma Hepatocelular/epidemiologia , Hepatite B/epidemiologia , Neoplasias Hepáticas/epidemiologia , Transplante de Fígado/efeitos adversos , Adulto , Idoso , Cadáver , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/cirurgia , Feminino , Hepatite B/complicações , Hepatite B/cirurgia , Humanos , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/cirurgia , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Prevalência , Recidiva , Estudos Retrospectivos , Doadores de Tecidos
4.
Aliment Pharmacol Ther ; 27(11): 1081-5, 2008 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-18346186

RESUMO

BACKGROUND: Pretransplantation clearance of hepatitis C virus (HCV)-RNA reduces the risk of HCV recurrence after transplantation. Furthermore, a sustained virological response could reduce disease progression and slow clinical deterioration in nontransplanted patients. AIM: To evaluate the safety, tolerability and efficacy of pegylated-interferon (PEG-IFN) alfa-2a plus ribavirin therapy in HCV-related decompensated cirrhotics. METHODS: Twenty HCV-related decompensated cirrhotics (44-67 years, 12 males, six Child-Pugh score A, 14 Child-Pugh score B, all with genotype 1b) were enrolled into the study. Treatment with PEG-IFN alfa-2a (135 microg, once a week) plus ribavirin (1000-1200 mg/day) was commenced. A 48-week treatment was planned in patients who had early virological response. RESULTS: Treatment was stopped in 8 (40%) patients. The remaining 12 (60%) patients completed 48 weeks of therapy; nine (45%) of them obtained end-of-therapy virological response and six (30%) of them obtained sustained virological response. Living donor liver transplantation was performed in three (15%) patients. Eight (40%) and six (30%) patients needed to reduce PEG-IFN alfa-2a and ribavirin dosages, respectively. No patient died during the follow-up period. CONCLUSION: PEG-IFN alfa-2a plus ribavirin therapy is safe, tolerable and efficacious in selected HCV-related decompensated cirrhotics.


Assuntos
Antivirais/efeitos adversos , Hepatite C/tratamento farmacológico , Interferon-alfa/efeitos adversos , Interferon-alfa/uso terapêutico , Cirrose Hepática/tratamento farmacológico , Transplante de Fígado , Polietilenoglicóis/efeitos adversos , Polietilenoglicóis/uso terapêutico , Ribavirina/efeitos adversos , Ribavirina/uso terapêutico , Adulto , Idoso , Quimioterapia Combinada , Feminino , Humanos , Interferon alfa-2 , Cirrose Hepática/cirurgia , Masculino , Pessoa de Meia-Idade , Cuidados Pré-Operatórios/métodos , Proteínas Recombinantes , Estatística como Assunto , Resultado do Tratamento
5.
Transplant Proc ; 39(5): 1488-90, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17580169

RESUMO

UNLABELLED: Liver allografts from donors previously exposed to hepatitis B virus (HBV) carry the risk of transmission of HBV infection to immunosuppressed recipients. However, exclusion of donor candidates with the serologic evidence of resolved hepatitis B-HBV surface antigen (HbsAg) negative and HBV core antibody (anti-HBc) positive-is not feasible in countries endemic for HBV. AIM: Our aim was to assess the safety of living donor liver transplantation from anti-HBc positive donors. MATERIALS AND METHODS: In our institution, 152 transplants were performed between June 1999 and April 2004. Fifty-six (37%) of the living donors were anti-HBc positive. Twenty of these liver grafts were transplanted to HbsAg-negative recipients. We excluded four HBsAg negative recipients who died because of early complications after transplantation. Lamivudine (100 mg/day) was given for prophylaxis of de novo HBV infection. RESULTS: The mean follow-up time for 16 HBsAg-negative recipients was 21.7 (7-48) months. None of them experienced de novo HBV infection. CONCLUSION: The use of liver allografts from anti-HBc-positive living donors is reasonably safe in HBsAg-negative recipients under lamivudine prophylaxis.


Assuntos
Antígenos do Núcleo do Vírus da Hepatite B/sangue , Imunoglobulinas/uso terapêutico , Doadores Vivos , Hepatite B/epidemiologia , Humanos , Imunização Passiva , Lamivudina/uso terapêutico , Transplante de Fígado , Seleção de Pacientes , Prevalência , Estudos Retrospectivos , Inibidores da Transcriptase Reversa/uso terapêutico , Turquia/epidemiologia
6.
Transplant Proc ; 38(5): 1435-7, 2006 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16797325

RESUMO

Living donor liver transplantation (LDLT) is a good alternative to cadaveric liver transplantation for end-stage liver disease. Herein we report the outcome of 132 LDLTs performed between 1999 and 2005, with special emphasis on the incidence and management of acute and chronic rejection. Among the LDLT population a first acute rejection episode (ARE) was clinically suspected in 24% and proven by liver biopsy in 11%. According to the Banff classification, 50% of AREs were grade 1, and 50%, grade 2. There was no grade 3 AREs. The first ARE occurred between 7 days and 23 months posttransplantation (mean 97 days, median 70 days). Ninety-seven percent (31/32) of the AREs occurred within the first year after transplantation and 3% (1/32) in the second year. Among the patients with ARE, 23% developed a second ARE between 4 and 11 months. A third ARE was detected in 8% of patients after month 18. All AREs responded to adjustment of immunosuppressive doses or steroid boluses. Chronic rejection (CR) was detected in 2%. In conclusion, the incidences of ARE and CR are consistent with the previously reported data. Acute and chronic rejections seem to be mild and easily manageable clinical conditions. Our results also showed a significant difference between clinically suspected and biopsy-proven ARE emphasizing the importance of indicated liver biopsies in the management of the LDLT population.


Assuntos
Rejeição de Enxerto/epidemiologia , Transplante de Fígado/imunologia , Doadores Vivos , Doença Aguda , Adulto , Biópsia , Criança , Doença Crônica , Feminino , Rejeição de Enxerto/patologia , Humanos , Incidência , Hepatopatias/classificação , Hepatopatias/cirurgia , Transplante de Fígado/patologia , Masculino , Estudos Retrospectivos , Resultado do Tratamento
7.
Transplant Proc ; 38(5): 1448-52, 2006 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16797329

RESUMO

OBJECTIVE: The aim of this study was to prevent fractures in the first postoperative year. METHODS AND PATIENTS: We studied 59 patients (48 men, 11 women) aged 42.6+/-11.4 years, who underwent liver transplantation. All patients received oral alendronate 70 mg weekly and calcium 1 g and calcitriol 0.5 mug daily. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry at the lumbar spine and proximal femur at baseline as well as at 6 and 12 months after transplantation for comparison with an historical control group (n=31). Spinal radiographs were obtained to assess vertebral fractures at the same time. Additionally, serum osteocalcin, serum parathyroid hormone (PTH), urinary deoxypyridinoline (DPD), and biochemical parameters were determined every 3 months. RESULTS: At baseline, femoral total BMD of men was significantly greater than that of women (P<.05, .85+/-.1 vs .74+/-.1). A significant increase in BMD was observed at 12 months (P<.05), no patient developed a bone fracture. Comparison analysis of genders showed that there was a significant difference in favor of men (P<.05). The lumbar BMD, neck T-, and Z-scores were significantly higher among patients treated with alendronate than historical controls (P<.05). After 3 months, serum PTH was increased and serum osteocalcin and urinary DPD were reduced. No severe side effects from alendronate treatment were observed during the study. CONCLUSION: A direct sign of the success of our study was no fracture observed during the first postoperative year. Alendronate should be considered for patients with low bone mass after liver transplantation.


Assuntos
Alendronato/uso terapêutico , Conservadores da Densidade Óssea/uso terapêutico , Densidade Óssea , Fraturas Ósseas/prevenção & controle , Transplante de Fígado , Complicações Pós-Operatórias/prevenção & controle , Adulto , Feminino , Fêmur/anatomia & histologia , Fêmur/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade , Hormônio Paratireóideo/sangue
8.
Osteoporos Int ; 17(6): 942-9, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16550299

RESUMO

INTRODUCTION: The purpose of this study was to evaluate the effects of alendronate (ALN) on bone mineral density (BMD) and bone turnover markers in patients with orthotopic liver transplantation (OLT). METHODS: In the prospective, controlled, open study with 24 months of follow-up, 98 patients with OLT were randomised to receive ALN 70 mg weekly or no ALN; calcium (Ca) 1,000 mg daily and 0.5 mcg calcitriol daily were provided to all patients. Lumbar spine (LS) and hip BMDs were measured at 6-month intervals by dual-energy X-ray absorptiometry (DEXA). Spinal radiographs were obtained to assess vertebral fractures. Additionally, bone turnover markers, serum parathyroid hormone (PTH) and biochemical parameters were determined every 3 months. RESULTS: Compared with the control group, the ALN group showed significant increases in BMD of the LS (5.1+/-3.9% vs 0.4+/-4.2%, p<0.05 at 12 months, 8.9+/-5.7% vs 1.4+/-4.9%, p<0.05 at 24 months), femoral neck (4.3+/-3.8% vs -1.1+/-3.1%, p<0.05 at 12 months, 8.7+/-4.8% vs 0.6+/-4.5%, p<0.05 at 24 months) and total femur (3.6+/-3.8% vs -0.6+/-4.0%, p<0.05 at 12 months, 6.2+/-3.8% vs 0.3+/-4.6%, p<0.05 at 24 months). In the ALN group, osteocalcin and urinary deoxypyridinoline (DPD) decreased significantly at the sixth month, with no further change, by -35.6% and -63.0%, on average, respectively (p<0.05). In the control group, a significant increase in biochemical markers of bone turnover was observed in comparison to baseline values (p<0.05). PTH increased within reference levels without a difference between groups. Two nonvertebral fractures (4.2%) and nine vertebral fractures (18.8%) in the control group and three vertebral fractures (6.8%) in the ALN group occurred during the follow-up. The weekly ALN was well tolerated, and no severe side effects occurred. CONCLUSION: This is the first randomised study including a control group to demonstrate that weekly ALN was able to significantly increase BMD in patients with OLT when compared with Ca and calcitriol alone. However, ALN did not appear to offer protection against fractures.


Assuntos
Alendronato/uso terapêutico , Conservadores da Densidade Óssea/uso terapêutico , Densidade Óssea/efeitos dos fármacos , Osso e Ossos/fisiologia , Fêmur/efeitos dos fármacos , Transplante de Fígado , Vértebras Lombares/efeitos dos fármacos , Osteoporose/prevenção & controle , Absorciometria de Fóton , Adulto , Biomarcadores/metabolismo , Calcitriol/administração & dosagem , Cálcio/administração & dosagem , Feminino , Fêmur/metabolismo , Humanos , Vértebras Lombares/metabolismo , Masculino , Pessoa de Meia-Idade , Hormônio Paratireóideo/metabolismo , Estudos Prospectivos
9.
Transplant Proc ; 37(5): 2188-9, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15964375

RESUMO

Kaposi's sarcoma has a higher incidence in organ transplant recipients. We report on a 41-year-old Turkish man with liver transplantation-associated Kaposi's sarcoma that involved the skin and the gut. Immediately after discontinuation of immunosuppressive medication, there was an acute rejection episode. After controlling the acute rejection with steroids, the immunosuppressive treatment was continued together with vincristine, which resulted in disease remission. After 6 months, withdrawal of vincristine lead to relapse of the disease, prompting commencement of vincristine again, which has maintained the patient in remission for more than 3 years without any significant side effects. In conclusion, long-term vincristine may be an effective, safe treatment option for Kaposi's sarcoma.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Transplante de Fígado/efeitos adversos , Complicações Pós-Operatórias/tratamento farmacológico , Sarcoma de Kaposi/tratamento farmacológico , Vincristina/uso terapêutico , Adulto , Hepatite B/cirurgia , Humanos , Masculino , Resultado do Tratamento
10.
Transplant Proc ; 37(5): 2224-6, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15964384

RESUMO

Two patients underwent liver transplantation due to Amanita falloides poisoning. In one of them the clinical symptoms, signs, and laboratory findings related to liver failure were similar to the findings before the transplantation. The patient died and the pathological examination of the liver was similar to the patient's earlier explanted liver.


Assuntos
Amanita , Falência Hepática/etiologia , Transplante de Fígado/patologia , Intoxicação Alimentar por Cogumelos/patologia , Adulto , Evolução Fatal , Feminino , Hemorragia/etiologia , Humanos , Masculino , Reoperação , Falha de Tratamento , Resultado do Tratamento
11.
J Viral Hepat ; 12(2): 212-5, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15720538

RESUMO

Anti-HBs immunoglobulins (HBIG) and lamivudine are main options to prevent hepatitis B virus (HBV) reinfection after liver transplantation. Although they are very effective, development of mutant viruses and high cost of treatment are main limitations for their application. Additionally there is an uncertainity for the duration of that prophylaxis regimen and its mostly applied indefinitely. Recently, post-transplant HBV vaccination is reported to be a cheaper alternative prophylaksis strategy, that enables discontinuation of HBIG. To investigate the efficacy of HBV vaccination in patients transplanted for HBV cirrhosis, we administered double course of double dose recombinant HBV vaccine (Genhavac B; containing HBV pre-S1, pre-S2, and S gene products). Vaccination has been started 1 month after HBIg discontinuation, and lamivudine (100 mg/day) was given throughout the study. The first cycle consisted of 0, 1- and 6-month schedule, and, in nonresponders, second cycle 0, 1-, 2-month schedule. Fourteen patients included into the study. Only one patient seroconverted (an anti-HBs titre of 37 IU/L) after the first cycle. No other patient responded to second cycle. HBV vaccination in the post-transplantation setting does not seems like an effective strategy in the prophylaxis of HBV recurrence.


Assuntos
Vacinas contra Hepatite B/administração & dosagem , Hepatite B/prevenção & controle , Transplante de Fígado/efeitos adversos , Vacinação , Adulto , DNA Viral/análise , Feminino , Seguimentos , Rejeição de Enxerto/prevenção & controle , Vírus da Hepatite B/isolamento & purificação , Humanos , Transplante de Fígado/métodos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Medição de Risco , Estudos de Amostragem , Prevenção Secundária , Falha de Tratamento , Resultado do Tratamento , Carga Viral
12.
Transplant Proc ; 37(10): 4424-5, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16387136

RESUMO

The focal neuropathies after orthotropic liver transplantation (OLTx) have been well documented to date. Most injuries to the peripheral nervous system involve the peroneal nerve and brachial plexus. We report the first case of lateral femoral cutaneous nerve (LFCN) injury after OLTx. The patient presented with pain and numbness on the lateral aspect of the right thigh that had progressively worsened since operation. Electrodiagnostic studies were indicative for right meralgia paresthetica (MP). The symptoms of MP improved progressively after physical therapy applications during the first 3 months. The etiology of MP in this case is unclear. However, it may be considered that ascites, surgical mechanisms, and immunosuppressive therapy were possible causative factors.


Assuntos
Transplante de Fígado/efeitos adversos , Síndromes de Compressão Nervosa/diagnóstico , Parestesia/diagnóstico , Doenças do Sistema Nervoso Periférico/diagnóstico , Complicações Pós-Operatórias/diagnóstico , Adulto , Estimulação Elétrica , Feminino , Humanos , Parestesia/terapia , Doenças do Sistema Nervoso Periférico/terapia , Modalidades de Fisioterapia , Especialidade de Fisioterapia , Complicações Pós-Operatórias/terapia , Resultado do Tratamento
13.
Transplant Proc ; 36(9): 2727-32, 2004 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-15621134

RESUMO

Anatomical variations in the venous system of liver are not a rarity. A prospective helical computerized tomography (CT) study was undertaken to determine the prevalence of surgically significant hepatic venous anatomic variations among 100 consecutive living liver donors. The studies evaluated the ramification pattern of hepatic veins, the presence of accessory hepatic veins, and of segment 5 or 8 veins (or both) draining into middle hepatic vein. These data obtained by CT influenced surgical planning. Sixty-four donors donated their right lobes and 24 donors, left lateral segments. Only one donor candidate was refused due to combined hepatic and portal venous variations accompanied by multiple bile ducts. Eleven donors were also refused due to reasons other than anatomical variations. Seventeen segment 5 and 17 segment 8 veins draining into middle hepatic vein were anastomosed to inferior vena cava in 23 (36%) of the right lobe liver transplantations. The middle hepatic vein was harvested in only one of the donors. Among the 100 cases, 47 had accessory right inferior hepatic veins, 13 of which were multiple. Twenty-two of the right lobe grafts required surgical anastomoses of these accessory hepatic veins (34%). An isolated hepatic vein anomaly or the presence of accessory hepatic veins are not contraindications to be a living liver donor candidate. However, preoperative knowledge of vascular variations alters surgical management. Helical CT is a valuable tool to delineate the hepatic venous anatomy for surgical planning in living liver donors.


Assuntos
Hepatectomia/métodos , Veias Hepáticas/anatomia & histologia , Transplante de Fígado , Doadores Vivos , Adulto , Feminino , Veias Hepáticas/anormalidades , Veias Hepáticas/cirurgia , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Coleta de Tecidos e Órgãos/métodos , Tomografia Computadorizada por Raios X
14.
Transplant Proc ; 36(9): 2768-70, 2004 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-15621144

RESUMO

Failure of prophylaxis for hepatitis B virus (HBV) recurrence in liver transplant patients with HBV immunoglobulin (HBIG) or lamivudine or both can be associated with rapid development of liver failure. Some of these patients develop a devastating clinicopathological state characterized by jaundice and rapidly progressive liver failure or fibrosing cholestatic hepatitis. We present two liver transplant recipients who experienced HBV recurrence while they were under lamivudine and HBIG prophylaxis. One of them had finding of severe HBV infection; the other, fibrosing cholestatic hepatitis. After commencing adefovir dipivoxil both patients showed improvements in clinical status and laboratory data. At month 4 of treatment, HBV DNA values became negative and liver function tests almost normalized. In addition, in one case showed HBs ag/anti-HBs seroconversion. When failure of prophylaxis with lamivudine and HBIG occurs, adefovir dipivoxil should be considered to be a safe and effective choice for recurrent HBV infections in liver transplant patients.


Assuntos
Adenina/análogos & derivados , Adenina/uso terapêutico , Anticorpos Antivirais/uso terapêutico , Antivirais/uso terapêutico , Hepatite B/tratamento farmacológico , Hepatite B/cirurgia , Organofosfonatos/uso terapêutico , Adulto , Resistência a Medicamentos , Feminino , Anticorpos Anti-Hepatite B , Humanos , Lamivudina/uso terapêutico , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Recidiva
15.
Transplant Proc ; 36(9): 2791-5, 2004 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-15621151

RESUMO

Cytokines, which play important roles in allograft rejection, show variable production among individuals. These variations may be related to genetic polymorphisms within the regulatory regions of the cytokine genes. We investigated the association between the role tumor necrosis factor alpha (TNF-alpha), transforming growth factor-beta (TGF-beta), interferon gamma (IFN-gamma), interleukin (IL)-10 and IL-6 gene polymorphisms and early graft rejection among liver transplant recipients. Forty-three liver transplant recipients enrolled in this study were divided into 2 groups based on events in the first 2 months posttransplantations, namely, those experiencing at least 1 rejection episode (n = 26) or those without any episode (n = 17). The allele or genotype frequencies of cytokine gene polymorphisms showed no difference between liver recipients with or without nonrejection. In conclusion, there was no significant correlation between early graft rejection and cytokine gene polymorphism of TNF-alpha, TGF-beta, IL-10, IL-6, and IFN-gamma in liver transplant recipients.


Assuntos
Citocinas/genética , Rejeição de Enxerto/genética , Transplante de Fígado/imunologia , Adolescente , Adulto , Sequência de Bases , Feminino , Regulação da Expressão Gênica/imunologia , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Fenótipo , Polimorfismo Genético
16.
Transplant Proc ; 36(5): 1442-4, 2004 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15251354

RESUMO

It is not clear whether pretransplantation MELD (model for End-Stage Liver Disease) score can foresee posttransplant outcome. We retrospectively evaluated 80 adult patients (55 men, 25 women) who underwent living donor liver transplantation between September 1998 and March 2003. Five other patients with fulminant hepatitis were excluded. The UNOS-modified MELD scores were calculated to stratify patients into three groups: group 1) MELD score less than 15 (n = 13); group 2) MELD score 15 to 24 (n = 36); and group 3) MELD score 25 and higher (n = 26). The patients were predominantly men (n = 52, 69.3%) with overall mean age of 43.9 years (range, 17-62 years). The mean follow-up was 15.7 months (range, 1-47; median = 14 months). The mean MELD score was 22.7 (range, 9-50; median = 21). The overall 1- and 2-year patient survivals were 87% and 78.7%, respectively. The 1-year patient survivals for groups 1, 2, and 3 were 100%, 87%, and 79%; respectively. 2-year survivals, 100%, 79%, and 61%, respectively. Survivals stratified by MELD showed no statistically remarkable differences in 1-year and 2-year patient survival (P = .08). In contrast, 1-year and 2-year patient survival rates for UNOS status 2A, 2B, and 3 were 73%-50%, 95%-91%, and 91%-91%, statistically significant difference (P = .002). Finally, to date preoperative MELD score showed no significant impact on 1- and 2-year posttransplant outcomes in adult-to-adult living donor liver transplantation recipients, but we await longer-term follow-up with greater numbers of patients.


Assuntos
Falência Hepática/classificação , Falência Hepática/cirurgia , Transplante de Fígado/fisiologia , Doadores Vivos , Adolescente , Adulto , Idoso , Seguimentos , Humanos , Transplante de Fígado/métodos , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento
17.
Transplant Proc ; 36(5): 1492-3, 2004 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15251367

RESUMO

Rituximab an anti-CD20 chimeric monoclonal antibody directed against the CD20 antigen on B lymphocytes, has been demonstrated to be highly effective for B-cell depletion. Because of its biological properties, it has become as a treatment option for a variety of autoimmune diseases. We report successful treatment of a 25-year-old male cadaveric liver retransplant recipient who displayed severe immune hemolytic anemia with rituximab, despite no previous response to corticosteroids plus intravenous immune globulin therapy.


Assuntos
Anemia Hemolítica/tratamento farmacológico , Anticorpos Monoclonais/uso terapêutico , Adulto , Anticorpos Monoclonais Murinos , Colangite Esclerosante/cirurgia , Hematócrito , Humanos , Doadores Vivos , Masculino , Reoperação , Rituximab , Resultado do Tratamento
18.
Transplant Proc ; 35(8): 2986-90, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14697957

RESUMO

Hepatocellular carcinoma (HCC) is one of the most common tumors in the world, and the prognosis is usually poor. Today, liver transplantation (LT) is a radical but frequently curative treatment modality for HCC. In selected patients, it cures HCC and the underlying cirrhosis at the same time. The present clinicopathological study examined the importance of tumor characteristics for their effects on recurrence and survival rates after LT for HCC. Forty-two native hepatectomy specimens among 250 consecutive orthotopic liver transplantations contained HCC. Patients were predominantly men (30 men, 12 women), ranging in age from 1 to 61 years (median 51). While 20 patients received cadaveric organs, 22 were transplanted from living donors. In 14 patients (33%) HCC presented as a solitary nodule, 5 (12%) as two nodules; 2 (5%) as three nodules; and 21 patients (50%) as more than three nodules. The maximal diameter of the largest tumor not larger than 3 cm in 28 patients (66%), exceeding this size in 14 patients (34%). There was a significant correlation between nodule number and tumor size (r = 0.36, P = 0.05). While 23 patients had no sign of vascular involvement, 17 tumors showed microscopic invasion and two large vessel involvement. There was a positive correlation between vascular invasion and nodule number (r = 0.41, P = 0.05). The histopathological grade of differentiation of the tumors was assessed as "well" in seven patients (14%), moderate in 28 (72%), and poor in 7 (14%). The differentiation was significantly poorer when vascular invasion was observed (r = 0.43, P =.01). According to the TNM classification, 11 patients (26%) were stage I, 6 (14%) stage II, 13 (31%) stage III, and 12 (29%) stage IV. After a median follow-up of 10 months (1-50 months), the overall mortality was 18% (n = 8). Patient survival at 6 month, 1, and 4 years was 88%, 80%, and 60%, respectively. The outcome was significantly poorer for TNM stage IV versus stage I,II, and III tumors to (P =.02). Tumor recurred in three patients at 4,6, and 50 months after liver transplantation. The sites of recurrence were bone, lung, and adrenal glands. In conclusion, liver transplantation represents a safe and feasible treatment for hepatocellular carcinoma with excellent outcomes compared with other treatment modalities. Liver transplantation offers excellent survival rates and chance for cure in stages I, II, and III hepatocellular carcinoma in cirrhotic patients.


Assuntos
Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/métodos , Adolescente , Adulto , Carcinoma Hepatocelular/patologia , Criança , Pré-Escolar , Intervalo Livre de Doença , Feminino , Humanos , Lactente , Neoplasias Hepáticas/patologia , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Seleção de Pacientes , Estudos Retrospectivos , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento
19.
Transplant Proc ; 35(8): 3008-10, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14697963

RESUMO

A point mutation in the factor V Leiden gene is the most common hereditary thrombophilic state and an important risk factor for Budd-Chiari syndrome. We report on a patient with Budd-Chiari syndrome secondary to factor V Leiden mutation, who underwent successful liver transplantation. Following liver transplantation, his thrombophilic state was corrected and he did not require anticoagulation therapy. There has been no recurrent venous thrombosis for 14 months after transplantation. Although his activated protein C sensitivity was normal, showing the normalization of protein C-factor V interaction, PCR analysis demonstrated that heterozygosity for factor V Leiden mutation was still present. We suggest checking resistance to activated protein C, rather than PCR analysis of factor V Leiden mutation in patients with Budd-Chiari syndrome after liver transplantation; the presence of the second does not effect clinical outcome.


Assuntos
Síndrome de Budd-Chiari/cirurgia , Fator V/genética , Transplante de Fígado/fisiologia , Mutação Puntual , Coagulação Sanguínea/genética , Síndrome de Budd-Chiari/genética , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
20.
Transplant Proc ; 35(4): 1482-4, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12826200

RESUMO

Hemophagocytic syndrome (HPS) is a life-threatening hematological disorder in immunocompromised patients. Although the number of patients with HPS following liver transplantation is scarce the outcome is usually fatal. We report a patient who developed HPS following living-related liver transplantation (LRLT) and was treated successfully by a combination of intravenous (IV) immunoglobulin (Ig) and granulocyte colony-stimulating factor (GCSF).


Assuntos
Histiocitose/etiologia , Transplante de Fígado/efeitos adversos , Doadores Vivos , Adulto , Biópsia , Diagnóstico Diferencial , Histiocitose/diagnóstico , Histiocitose/terapia , Humanos , Transplante de Fígado/patologia , Masculino , Plasmaferese
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