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Risk stratification using a novel liver functional reserve score of combination prothrombin time-international normalized ratio to albumin ratio and albumin in patients with hepatocellular carcinoma.
Surgery 2018 September
BACKGROUND: Liver function in patients with hepatocellular carcinoma is generally graded according to the Child-Pugh system; however, some variables in the Child-Pugh grade are subjective. We developed a novel, objective score called the prothrombin time-international normalized ratio to albumin ratio. The aim of this study was to evaluate the prognostic value of this new score in patients with hepatocellular carcinoma after hepatic resection.
METHODS: The study comprised 199 patients who underwent elective hepatic resection for hepatocellular carcinoma between January 2003 and December 2014. We investigated retrospectively the relation between prothrombin time-international normalized ratio to albumin ratio, disease-free survival, and overall survival and compared the value of liver functional reserve between prothrombin time-international normalized ratio to albumin ratio and Child-Pugh grade.
RESULTS: The optimal cut-off level of the prothrombin time-international normalized ratio to albumin ratio was 0.288. In multivariate analysis, the independent and significant predictors of cancer recurrence consisted of hepatitis C virus infection (P = .043), preoperative retention rate of indocyanine green at 15 minutes ≥15% (P = .039), the presence of multiple tumors (P = .001) or microvascular invasion (P < .001), and prothrombin time-international normalized ratio to albumin ratio ≥0.288 (P = .022). The independent predictors of poor overall survival were microvascular invasion (P = .001) and prothrombin time-international normalized ratio to albumin ratio ≥0.288 (P = .001). In patients with a high prothrombin time-international normalized ratio to albumin ratio, pathologic liver cirrhosis (P < .001), postoperative ascites (P = .039), and postoperative liver failure (P = .040) were greater than for their counterparts.
CONCLUSION: The prothrombin time-international normalized ratio to albumin ratio may reflect liver function and may be a novel indicator of poor long-term outcome in patients with hepatocellular carcinoma after hepatic resection.
METHODS: The study comprised 199 patients who underwent elective hepatic resection for hepatocellular carcinoma between January 2003 and December 2014. We investigated retrospectively the relation between prothrombin time-international normalized ratio to albumin ratio, disease-free survival, and overall survival and compared the value of liver functional reserve between prothrombin time-international normalized ratio to albumin ratio and Child-Pugh grade.
RESULTS: The optimal cut-off level of the prothrombin time-international normalized ratio to albumin ratio was 0.288. In multivariate analysis, the independent and significant predictors of cancer recurrence consisted of hepatitis C virus infection (P = .043), preoperative retention rate of indocyanine green at 15 minutes ≥15% (P = .039), the presence of multiple tumors (P = .001) or microvascular invasion (P < .001), and prothrombin time-international normalized ratio to albumin ratio ≥0.288 (P = .022). The independent predictors of poor overall survival were microvascular invasion (P = .001) and prothrombin time-international normalized ratio to albumin ratio ≥0.288 (P = .001). In patients with a high prothrombin time-international normalized ratio to albumin ratio, pathologic liver cirrhosis (P < .001), postoperative ascites (P = .039), and postoperative liver failure (P = .040) were greater than for their counterparts.
CONCLUSION: The prothrombin time-international normalized ratio to albumin ratio may reflect liver function and may be a novel indicator of poor long-term outcome in patients with hepatocellular carcinoma after hepatic resection.
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