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Postoperative low hepatitis C virus load predicts long-term outcomes after hepatectomy for hepatocellular carcinoma.
Journal of Surgical Oncology 2018 April
BACKGROUND: Preoperative hepatitis C virus (HCV) viral load is known to predict long-term outcomes after hepatectomy for HCV-related hepatocellular carcinoma (HCC). This study sought to examine the hypothesis that postoperative and preoperative HCV viral-load have similar prognostic implications, as well as determine a target viral-load that will improve long-term postoperative outcomes.
METHOD: One hundred and eighty-one patients who underwent curative hepatectomy for HCV-related HCC were divided into five groups according to time-weighted average viral load. The cumulative-recurrence curves of the five groups were compared to identify prognostic trends. The optimal cut-off viral load value related to recurrence was also investigated.
RESULTS: The five cumulative-recurrence curves were separated into two clusters according to viral load. Patients with a negative viral load had comparable recurrence curves to patients with the lowest viral-load (P = 0.907); both of these patient groups had more favorable outcomes than patients with a viral load categorized in the other groups (all P < 0.050). The optimal cut-off based on maximum HR method (> or ≤4.0 log10 IU/mL) was a strong prognostic indicator of recurrence in multivariate analysis (HR 3.09; 95%CI 1.96-5.04; P < 0.001).
CONCLUSION: Postoperative HCV viral load correlated with long-term surgical outcomes. A low viral load (≤4.0 log10 IU/mL) independently predicted better long-term outcomes.
METHOD: One hundred and eighty-one patients who underwent curative hepatectomy for HCV-related HCC were divided into five groups according to time-weighted average viral load. The cumulative-recurrence curves of the five groups were compared to identify prognostic trends. The optimal cut-off viral load value related to recurrence was also investigated.
RESULTS: The five cumulative-recurrence curves were separated into two clusters according to viral load. Patients with a negative viral load had comparable recurrence curves to patients with the lowest viral-load (P = 0.907); both of these patient groups had more favorable outcomes than patients with a viral load categorized in the other groups (all P < 0.050). The optimal cut-off based on maximum HR method (> or ≤4.0 log10 IU/mL) was a strong prognostic indicator of recurrence in multivariate analysis (HR 3.09; 95%CI 1.96-5.04; P < 0.001).
CONCLUSION: Postoperative HCV viral load correlated with long-term surgical outcomes. A low viral load (≤4.0 log10 IU/mL) independently predicted better long-term outcomes.
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