摘要
AIM To investigate the association between smoking habits and surgical outcomes in hepatitis B virus(HBV)-related hepatocellular carcinoma(HCC)(B-HCC) and hepatitis C virus(HCV)-related HCC(C-HCC) and clarify the clinicopathological features associated with smoking status in B-HCC and C-HCC patients.METHODS We retrospectively examined the cases of the 341 consecutive patients with viral-associated HCC(C-HCC,n = 273; B-HCC, n = 68) who underwent curative surgery for their primary lesion. We categorized smoking status at the time of surgery into never, exand current smoker. We analyzed the B-HCC and C-HCC groups' clinicopathological features and surgical outcomes, i.e., disease-free survival(DFS), overall survival(OS), and disease-specific survival(DSS).Univariate and multivariate analyses were performed using a Cox proportional hazards regression model. We also performed subset analyses in both patient groups comparing the current smokers to the other patients.RESULTS The multivariate analysis in the C-HCC group revealed that current-smoker status was significantly correlated with both OS(P = 0.0039) and DSS(P = 0.0416).In the B-HCC patients, no significant correlation was observed between current-smoker status and DFS, OS,or DSS in the univariate or multivariate analyses. The subset analyses comparing the current smokers to the other patients in both the C-HCC and B-HCC groups revealed that the current smokers developed HCC at significantly younger ages than the other patients irrespective of viral infection status.CONCLUSION A smoking habit is significantly correlated with the overall and disease-specific survivals of patients with C-HCC. In contrast, the B-HCC patients showed a weak association between smoking status and surgical outcomes.
AIM To investigate the association between smoking habits and surgical outcomes in hepatitis B virus(HBV)-related hepatocellular carcinoma(HCC)(B-HCC) and hepatitis C virus(HCV)-related HCC(C-HCC) and clarify the clinicopathological features associated with smoking status in B-HCC and C-HCC patients.METHODS We retrospectively examined the cases of the 341 consecutive patients with viral-associated HCC(C-HCC,n = 273; B-HCC, n = 68) who underwent curative surgery for their primary lesion. We categorized smoking status at the time of surgery into never, exand current smoker. We analyzed the B-HCC and C-HCC groups' clinicopathological features and surgical outcomes, i.e., disease-free survival(DFS), overall survival(OS), and disease-specific survival(DSS).Univariate and multivariate analyses were performed using a Cox proportional hazards regression model. We also performed subset analyses in both patient groups comparing the current smokers to the other patients.RESULTS The multivariate analysis in the C-HCC group revealed that current-smoker status was significantly correlated with both OS(P = 0.0039) and DSS(P = 0.0416).In the B-HCC patients, no significant correlation was observed between current-smoker status and DFS, OS,or DSS in the univariate or multivariate analyses. The subset analyses comparing the current smokers to the other patients in both the C-HCC and B-HCC groups revealed that the current smokers developed HCC at significantly younger ages than the other patients irrespective of viral infection status.CONCLUSION A smoking habit is significantly correlated with the overall and disease-specific survivals of patients with C-HCC. In contrast, the B-HCC patients showed a weak association between smoking status and surgical outcomes.
