高渗盐水增效射频消融治疗肝癌的疗效

目的 探讨高渗盐水增效RFA治疗肝癌的效果和安全性.方法 回顾性分析南京医科大学第一附属医院2001年9月至2007年12月收治的42例原发性肝癌和转移性肝癌患者的临床资料.全组共48个肿瘤结节,直径为1.2～7.5 cm,在B超或CT引导下经皮穿刺或在开腹直视下将射频电极置于肿瘤内,同时置入20G的穿刺针,射频治疗过程中从穿刺针间断注入高渗盐水5～10 ml.随访3～79个月,术后定期行造影或CT检查动态监测RFA治疗效果.采用t检验比较治疗前后AFP水平,Kaplan-Meier生存曲线分析患者术后生存情况.结果 18例术前AFP阳性患者中有14例完全转为阴性,治疗前后比较差异有统计学意义(t=7.703,P<0.05).术后超声造影或CT检查显示肿瘤完全坏死率为94%(45/48),直径≤4.0 cm的肿瘤结节完全坏死.并发症发生率为5%(2/42),无手术死亡.患者1、2、3年生存率分别为9l%、85%、70%.结论 高渗盐水增效RFA治疗肝癌是一种安全、有效的方法.

Hypertonic saline enhanced radiofrequency ablation in the treatment of liver cancer

Objective To investigate the efficacy and safety of hypertonie saline enhanced radiofrequency ablation (RFA) in the treatment of liver cancer. Methods The clinical data of 42 patients with primary liver cancer (n = 28) or metastatic liver eancer (n = 14) who had been admitted to First Affiliated Hospital of Nanjing Medical University from September 2001 to December 2007 were collected. Forty-eight lesions were detected with a diameter ranging from 1.2 cm to 7.5 cm. RFA electrode and 20G needle were pricked into the target lesion under the guidance of B ultrasound or computed tomography (CT) through percutaneoas puncture or open approaches. An amount of 5-10 ml hypertonie saline was infused through the needle at regular intervals during RFA. All patients were followed up for 3-79 months. Contrast-enhanced ultrasound and CT scanning were performed postoperatively to determine the efficacy of RFA. The levels of alpha-fetoprotein (AFP) before and after treatment were compared using t test, and the survival of the patients were analyzed using a Kaplan-Meier survival curve. Results The AFP expression changed to negative in 14 out of the 18 AFP-positive patients, with statistical difference (t =7.703, P <0.05). The complete necrosis rate of tumors was 94% (45/48), and the necrosis rate of tumors with diameter of ≤4.0 cm reached 100% (35/35). The incidence of complication was 5% (2/42). No perioperative mortality occurred. The 1-, 2-, 3-year survival rates were 91%, 85% and 70%, respectively. Conclusions Hypertonic saline enhanced RFA in the treatment of liver cancer was proved to be safe and effective.