Background/aims: Definitive efficacy of hepatic resection for hepatocellular carcinoma larger than or equal to 10 cm in diameter remains to be resolved.
Methodology: The surgical outcomes in 33 consecutive patients with hepatocellular carcinoma in diameter of > or = 10 cm who underwent hepatic resection were retrospectively clarified. Postresection prognostic factors were evaluated by univariate and multivariate analysis using Cox's proportional hazards model.
Results: The overall incidence of postoperative complications was 39%, and 5 patients among them had hospital deaths (15%) including 2 (6%) operative deaths. The 3-year, 5-year, and 9-year overall survival rates after hepatic resection were 32%, 27%, and 17%, respectively. Univariate analysis revealed that liver cirrhosis and stage IV-A (pTNM staging) were significant factors of poor overall survival. By Cox's proportional hazards model, liver cirrhosis was an independently unfavorable prognostic factor of long-term survival. Hospital mortality rate in patients with cirrhosis was 31%. The 5-year overall survival rate in patients with cirrhosis (7%) was significantly shorter than that in patients without cirrhosis (43%) (P = 0.006). In addition, the 5-year overall survival rate in patients with stage IV-A (11%) was significantly shorter than that in patients with stage II and III (48%) (P = 0.024). The incidence of stage IV-A in patients with cirrhosis (77%) was significantly higher than those without cirrhosis (35%) (P = 0.032).
Conclusions: Hepatic resection for hepatocellular carcinoma in diameter of > or = 10 cm was effective for patients without liver cirrhosis and with stage II or III. Appropriate selection of the candidates for partial hepatectomy based on the above prognostic factors may play an important role in the improvement of high mortality rate and poor long-term survival for such patients. Prospective randomized trials are needed to define the role of hepatic resection for cirrhotic patients with large HCC.
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