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《世界胃肠病学杂志(英文版)》 2004-08
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Rapid progression of hepatocellular carcinoma after Radiofrequency Ablation

Andrea Ruzzenente,Giovanni de Manzoni,Matteo Molfetta,Silvia Pachera,Bruno Genco,Matteo Donataccio,Alfredo Guglielmi First Department of General Surgery,Verona University Medical School,Ospedale Maggiore Borgo Trento,Piazzale Stefani 1,37126 Verona,Italy  
AIM:To report the results of radiofrequency ablation (RFA) of hepatocellular carcinoma (HCC) in cirrhotic patients and to describe the treatment related complications (mainly the rapid intrahepatic neoplastic progression). METHODS:Eighty-seven consecutive cirrhotic patients with 104 HCC (mean diameter 3.9 cm,1.3 SD) were submitted to RFA between January 1998 and June 2003.In all cases RFA was performed with percutaneous approach under ultrasound guidance using expandable electrode needles. Treatment efficacy (necrosis and recurrence) was estimated with dual phase computed tomography (CT) and alpha- fetoprotein (AFP)level. RESULTS:Complete necrosis rate after single or multiple treatment was 100%,87.7% and 57.1% in HCC smaller than 3 cm,between 3 and 5 cm and larger than 5 cm respectively (P=0.02).Seventeen lesions of 88(19.3%) developed local recurrence after complete necrosis during a mean follow up of 19.2 mo.There were no treatment-related deaths in 130 procedures and major complications occurred in 8 patients (6.1%).In 4 patients,although complete local necrosis was achieved,we observed rapid intrahepatic neoplastic progression after treatment.Risk factors for rapid neoplastic progression were high preoperative AFP values and location of the tumor near segmental portal branches. CONCLUSION:RFA is an effective treatment for hepatocellular carcinoma smaller than 5 cm with complete necrosis in more than 80% of lesions.Patients with elevated AFP levels and tumors located near the main portal branch are at risk for rapid neoplastic progression after RFA.Further studies are necessary to evaluate the incidence and pathogenesis of this underestimated complication.
【CateGory Index】: R735.7
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