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1.
Ann Hepatol ; 12(2): 263-73, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23396738

RESUMO

UNLABELLED: BACKGROUND; Radiofrequency ablation (RFA) has been performed as a first line curative treatment modality for patients with hepatocellular carcinoma (HCC) within the Milan criteria currently. However, prognosis of hepatitis B- and hepatitis C-related HCC after RFA remains debatable. This study aimed to assess the impact of viral etiology on the prognosis of HCC patients undergoing RFA. MATERIAL AND METHODS: One hundred and ninety-two patients with positive serum HBV surface antigen (HBsAg) and negative serum antibody against HCV (anti-HCV) were enrolled as the B-HCC group and 165 patients with negative serum HBsAg and positive anti-HCV as the C-HCC group. Post-RFA prognoses were compared between the two groups using multivariate and propensity score matching analyses. RESULTS: The B-HCC group had higher male-to-female ratio and better liver functional reserve than the C-HCC group. After a median follow-up of 23.0 ± 22.7 months, 55 patients died and 189 patients had tumor recurrence after RFA. The cumulative five-year survival rate was 75.9% and 69.5% in the B-HCC and C-HCC groups, respectively (p = 0.312), while the five-year recurrence-free survival rate was 19.0% and 26.6%, respectively (p = 0.490). After propensity-score matching, the B-HCC group still had comparable overall survival rate (p = 0.679) and recurrence-free survival rate (p = 0.689) to the C-HCC group. For 132 patients with Barcelona-Clinic Liver Cancer stage 0, the five-year overall survival and recurrence-free survival rates were also comparable between the two groups (p = 0.559 and p = 0.872, respectively). CONCLUSION: Viral etiology is not essential for determining outcome in HCC patients undergoing RFA.


Assuntos
Carcinoma Hepatocelular/cirurgia , Carcinoma Hepatocelular/virologia , Ablação por Cateter , Hepatite B/complicações , Hepatite C/complicações , Neoplasias Hepáticas/cirurgia , Neoplasias Hepáticas/virologia , Idoso , Biomarcadores/sangue , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Ablação por Cateter/efeitos adversos , Ablação por Cateter/mortalidade , Distribuição de Qui-Quadrado , Intervalo Livre de Doença , Feminino , Hepatite B/sangue , Hepatite B/diagnóstico , Hepatite B/mortalidade , Antígenos de Superfície da Hepatite B/sangue , Hepatite C/sangue , Hepatite C/diagnóstico , Hepatite C/mortalidade , Anticorpos Anti-Hepatite C/sangue , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Recidiva Local de Neoplasia , Pontuação de Propensão , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento
2.
Braz J Infect Dis ; 16(3): 242-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22729191

RESUMO

OBJECTIVE: The diagnostic efficacy of the BDProbeTEC ET Mycobacterium tuberculosis (MTB) complex direct detection assay (DTB) performed on bronchoalveolar lavage (BAL) specimens and sputum smears was compared with acid-fast bacilli (AFB) smear microscopy. METHOD: AFB smear microscopy, DTB and culture results of 286 patients with pulmonary tuberculosis were retrospectively reviewed. A total of 120 patients provided expectorated sputum samples, and 166 patients provided BAL specimens. Culture results and clinical diagnosis were used as gold standards. RESULTS: The sensitivity and specificity of the DTB assay in detecting MTB in sputum specimens was significantly higher compared to AFB smear microscopy (83.7% and 82.4%, vs. 75.6%, and 41.2%, respectively). The sensitivity and specificity of the DTB assay in detecting MTB in sputum samples was 77.2% and 100% compared to clinical diagnosis, while AFB smear had a sensitivity and specificity of 70.3% and 26.3%, respectively. Compared to culture, DTB had a sensitivity and specificity of 82.8% and 93.2%, respectively, in detecting MTB from BAL specimens; AFB smear had a sensitivity and specificity of 41.9% and 87.7%, respectively. Compared to clinical diagnosis, DTB had a sensitivity and specificity of 67.2% and 100%, respectively, in detecting MTB from BAL specimens; AFB smear had a sensitivity and specificity of 34.8% and 79.5%, respectively. CONCLUSIONS: The superior performance of the DTB assay relative to AFB smear microscopy makes it a valuable tool to enable early diagnosis of MTB, thereby improving patient care and reducing transmission.


Assuntos
Líquido da Lavagem Broncoalveolar/microbiologia , Mycobacterium tuberculosis/isolamento & purificação , Escarro/microbiologia , Tuberculose Pulmonar/diagnóstico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Adulto Jovem
3.
Braz. j. infect. dis ; Braz. j. infect. dis;16(3): 242-249, May-June 2012. ilus, tab
Artigo em Inglês | LILACS | ID: lil-638557

RESUMO

OBJECTIVE: The diagnostic efficacy of the BDProbeTEC ET Mycobacterium tuberculosis (MTB) complex direct detection assay (DTB) performed on bronchoalveolar lavage (BAL) specimens and sputum smears was compared with acid-fast bacilli (AFB) smear microscopy. METHOD: AFB smear microscopy, DTB and culture results of 286 patients with pulmonary tuberculosis were retrospectively reviewed. A total of 120 patients provided expectorated sputum samples, and 166 patients provided BAL specimens. Culture results and clinical diagnosis were used as gold standards. RESULTS: The sensitivity and specificity of the DTB assay in detecting MTB in sputum specimens was significantly higher compared to AFB smear microscopy (83.7% and 82.4%, vs. 75.6%, and 41.2%, respectively). The sensitivity and specificity of the DTB assay in detecting MTB in sputum samples was 77.2% and 100% compared to clinical diagnosis, while AFB smear had a sensitivity and specificity of 70.3% and 26.3%, respectively. Compared to culture, DTB had a sensitivity and specificity of 82.8% and 93.2%, respectively, in detecting MTB from BAL specimens; AFB smear had a sensitivity and specificity of 41.9% and 87.7%, respectively. Compared to clinical diagnosis, DTB had a sensitivity and specificity of 67.2% and 100%, respectively, in detecting MTB from BAL specimens; AFB smear had a sensitivity and specificity of 34.8% and 79.5%, respectively. CONCLUSIONS: The superior performance of the DTB assay relative to AFB smear microscopy makes it a valuable tool to enable early diagnosis of MTB, thereby improving patient care and reducing transmission.


Assuntos
Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Pessoa de Meia-Idade , Adulto Jovem , Líquido da Lavagem Broncoalveolar/microbiologia , Mycobacterium tuberculosis/isolamento & purificação , Escarro/microbiologia , Tuberculose Pulmonar/diagnóstico , Sensibilidade e Especificidade
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