Laparoscopic radiofrequency ablation for the treatment of hepatocellular carcinoma

/Ma Ren

(馬仁，Dept Gen Surg，Beijing China-Japan Friendship Hosp，Beijing 100029)…∥Chin J Gen Surg.-2011，26(11).-943～946

ObjectiveTo investigate the efficacy and safety of laparoscopic radiofrequency ablation(RFA)therapy for hepatocellular carcinoma.MethodsClinical data of 78 hepatocellular carcinoma patients undergoing laparoscopic radiofrequency in Beijing China-Japan Friendship Hospital from May.2008 to July.2010 were reviewed retrospectively.Age ranged from 31 to 87 years，41 were male and 37 were female.Intraoperative ultrasound-guided needle biopsy was performed and diagnosis of hepatocellular carcinoma was established in all cases before RFA was carried out.Data analysis was performed using software SPSS or OriginPro7.Necrosis，local recurrence of the tumor and the cumulative survival rate were analyzed by Kaplan-Meier test and x2test.ResultsThe median follow-up time was 16 months after RFA treatment.Tumor size，proximity to intrahepatic vessels and combination with TACE were factors that influence local recurrence.The complete ablation(CA)rate was remarkably higher in tumors＜3 cm than in tumors＞3-5 cm(90.5%vs 71.4%，x2=4.291，P=0.038).Tumors adjacent to major vessels had a significantly lower CA rate as compared with those not adjacent to them(63.6%vs 91.9%，x2=6.351，P=0.012).The CA rate were 88.9%in the TACE ± RFA group and 75.0%in the RFA group(x2=1.567，P=0.211).The mean overall survival were 48.7 ±2.4 months，the cumulative survival rate was 86.1%at 1 year，76.9%at 2 years，60.3%at 3 years，51.8%at 4 years and 33.1%at 5 years.Conclusion Laparoscopic RFA is safe，mini-invasive and effective for unresectable hepatic carcinoma with a favorable long term survival.7 refs，7 figs