冷冻肝切除对降低肝癌术后复发的初步评价

目的探讨冷冻肝切除对降低肝癌术后复发率和提高生存率的价值。方法对84例原发性肝癌行冷冻肝切除,即对可切除肝癌,先用液氮(-196℃)冷冻,将癌块冷冻成冰球然后立即作常规根治性肝切除。术后定期随访。复发率和生存率用寿命表法统计。结果术后恢复均顺利,无手术死亡,无严重并发症。冷冻肝切除后1、3、5年生存率分别为98．7％、83．9％和64．0％。术后复发率分别为15．1％、30．1％和39．0％。结论冷冻肝切除是安全可行的,有可能降低肝癌术后复发率和提高生存率。冷冻肝切除与常规肝切除的远期疗效比较,尚需进一步观察。

Cryohepatectomy for liver cancer: preliminary evaluation of reducing postoperative recurrence

OBJECTIVE: To determine whether cryohepatectomy is potentially beneficial in reducing the recurrence and prolonging survival for hepatocellular carcinoma (HCC). METHODS: The study included 84 patients who underwent cryohepatectomy, cryosurgery with liquid nitrogen (-196 degrees C) followed by the resection of the frozen tumor by conventional technique, for HCC and were closely follow-up after surgery. Recurrence and survival rates were calculated by the life-table method. RESULTS: The postoperative course of cryohepatectomy in all of the 84 patients was uneventful, there being no operative mortality or severe complications. The 1-, 3-, and 5-year survival rates after cryohepatectomy were 98.7%, 83.9% and 64.0%, respectively. The 1-, 3-, and 5-year recurrence rates after cryohepatectomy were 15.1%, 30.1% and 39.0%, respectively. CONCLUSIONS: Cryohepatectomy for HCC is a safe procedure and may be potentially beneficial in reducing recurrence and prolonging survival. More time is needed to further define whether this procedure will improve long-term survival as compared with conventional resection.