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3.
J Viral Hepat ; 5(3): 193-8, 1998 May.
Artigo em Inglês | MEDLINE | ID: mdl-9658373

RESUMO

Ribavirin is a purine nucleoside that inhibits the replication of a variety of RNA viruses and was shown to have a transient efficacy in chronic hepatitis C during short-term therapy. We have analysed retrospectively its efficacy in 95 patients with liver biopsy-proven chronic hepatitis C. Patients received oral ribavirin (600-1200 mg daily) for a mean duration of 11 months. Alanine aminotransferase (ALT) levels returned to normal values in 38 patients (40%) and decreased by more than 50% in 20 other patients (21%). HCV RNA clearance from serum was observed in seven patients (8%). The biochemical response rate was higher in patients with chronic hepatitis (54%) than in those with cirrhosis (24%) (P = 0.003). Clearance of HCV RNA was observed in 10% of the patients with chronic hepatitis vs 4% of the patients with cirrhosis. In non-responders to interferon (IFN) therapy, ALT levels returned to normal values in 11 (26%) and HCV RNA became negative in one (2%), as compared to 48% and 3%, respectively, in those contraindicated for IFN. In 17 patients in whom paired liver biopsy specimens were available, the histology activity index (HAI) improved in 12. Therapy was generally well tolerated although 11 patients had to stop therapy because of side-effects, which were more common in cirrhotic patients. In conclusion, our results suggest that long-term administration of ribavirin is well tolerated and may be beneficial in controlling the progression of chronic hepatitis C. This may represent an alternative therapy in patients who have contraindications for interferon therapy or as a palliative approach in non-responders to IFN.


Assuntos
Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Ribavirina/uso terapêutico , Adulto , Idoso , Feminino , Hepatite C Crônica/patologia , Hepatite C Crônica/virologia , Humanos , Fígado/patologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Ribavirina/efeitos adversos , Resultado do Tratamento
5.
Nephrol Dial Transplant ; 11 Suppl 4: 48-51, 1996.
Artigo em Inglês | MEDLINE | ID: mdl-8918754

RESUMO

The prevalence of HCV infection is high in renal transplantation (RT) patients: 29% in our cohort of 399 RT recipients. The consequences of that infection on the liver have to be carefully assessed. Clinical chronic hepatitis was detected from ALT concentrations (> x 1.5 N) in only 26 patients (22%) with constant (15%) or fluctuating (85%) ALT elevation. Only three of 117 cases developed cirrhosis (3%). No liver cancer was noted. Liver biopsy was performed (mean interval = 60.2 months) in 62 patients with HCV infection alone. We found 26 cases (42%) of chronic active hepatitis (CAH) with a mean Knodell score as low as 6.1 (range: 3-12), a mean activity grade of 4.9, and a fibrosis stage of 1.3. Twelve patients (19%) presented with normal liver pathology and met the criteria of healthy HCV carriers (positive viraemia, normal ALT and normal liver). The rest presented with portal lesions, either inflammation or fibrosis. In addition, patient and graft survival rates did not differ in HCV+ recipients. To conclude, HCV infection did not appear too deleterious for the liver in this cohort of patients. There is therefore no contraindication for HCV-positive recipients to undergo renal transplantation.


Assuntos
Alanina Transaminase/sangue , Hepatite C/patologia , Transplante de Rim , Adolescente , Adulto , Idoso , Anticorpos Antivirais/análise , Biópsia , Criança , Doença Crônica , Ensaio de Imunoadsorção Enzimática , Feminino , Seguimentos , Rejeição de Enxerto/epidemiologia , Rejeição de Enxerto/imunologia , Sobrevivência de Enxerto , Hepacivirus/genética , Hepacivirus/imunologia , Hepatite C/epidemiologia , Hepatite C/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Prevalência , RNA Viral/análise , Radioimunoensaio , Estudos Retrospectivos
6.
Nephrol Dial Transplant ; 11 Suppl 4: 54-5, 1996.
Artigo em Inglês | MEDLINE | ID: mdl-8918756

RESUMO

In general nephrology, HCV infection has been associated with type I membranoproliferative glomerulonephritis (MPGN type I) associated with cryoglobulinaemia. In a cohort of 399 renal transplantation (RT) recipients, 117 of whom (29%) were HCV-positive, we selected all patients diagnosed as having membranous GN or type I MPGN by graft biopsy. The prevalence of MGN was 16/399 (4%) with three recurrences, and 13 de novo cases. Only 5/16 (31%) were HCV+, not different from the general RT population. Five patients had an outcome of graft failure after 43 months. Conversely, there were 15 cases of type I MPGN (two recurrences, 13 de novo) but with eight HCV+ recipients (53%, P = 0.02). Considering only the French patients, prevalence was 44% vs 12% in the French RT population (P = 0.006). Eight patients had graft rejection after 59 months (five HCV+). In this type I MPGN subgroup, there were two positive cryoglobulins, two rheumatoid factors and four hypocomplementaemias. In conclusion, there is a clear association between HCV infection and the occurrence of type I MPGN in the allograft in renal transplantation, with terminal renal failure as an outcome.


Assuntos
Crioglobulinemia/etiologia , Glomerulonefrite Membranoproliferativa/etiologia , Hepatite C/complicações , Transplante de Rim , Adolescente , Adulto , Idoso , Anticorpos Antivirais/análise , Biópsia , Criança , Crioglobulinemia/epidemiologia , Crioglobulinemia/patologia , Ensaio de Imunoadsorção Enzimática , Feminino , Seguimentos , Glomerulonefrite Membranoproliferativa/epidemiologia , Glomerulonefrite Membranoproliferativa/patologia , Hepacivirus/genética , Hepacivirus/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Prevalência , Prognóstico , RNA Viral/análise , Recidiva , Insuficiência Renal/epidemiologia , Insuficiência Renal/etiologia , Estudos Retrospectivos
7.
Chirurgie ; 120(2): 67-72, 1994.
Artigo em Francês | MEDLINE | ID: mdl-7729218

RESUMO

Based on our experience with 235 patients we emphasize the importance of examining, in the acute phase, the cryptic orifice and the trajectory of the fistula when treating anal abscesses. Fistulotomy can then performed in one or two operations. In specialized units, this attitude can give favourable results in nearly three-fourths of the cases and would avoid a large percentage of recurrent cases of suppuration.


Assuntos
Abscesso/cirurgia , Doenças do Ânus/cirurgia , Abscesso/patologia , Doenças do Ânus/patologia , Emergências , Feminino , Humanos , Masculino , Recidiva , Estudos Retrospectivos , Fatores de Tempo
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