Complications of laser ablation for hepatocellular carcinoma: a multicenter study

Radiology
Vincenzo ArientiFrancesca Marta Lilja Di Lascio

Abstract

To retrospectively and prospectively determine the rate and type of complications and their association with clinical or technical factors after percutaneous laser ablation (LA) for hepatocellular carcinoma (HCC). The institutional research board of each center approved the study and all patients provided informed consent. By using an Internet liver tumor database of nine Italian centers, 520 patients were included with HCC nodules of any size (small, 0-3 cm; intermediate, >3-5 cm; large, >5 cm). Postprocedural complications were related to clinical or percutaneous LA factors by using the Student t and chi(2) tests. Follow-up was carried out with computed tomography (CT) at 1, 3, 6, 9, and 12 months, and primary effectiveness rate was defined as the percentage of HCCs completely ablated after percutaneous LA. A total of 353 men and 147 women (age range, 24-86 years; Child-Pugh score A = 63.4%, B = 30.8%, C = 5.9%) with 647 nodules (mean diameter, 3.2 cm +/- 1.7) were treated by 1004 percutaneous LA sessions. There were four (0.8%) deaths in 520 patients; 15 (1.5%) of 1004 sessions presented major complications without any seeding. Major complications were associated with excess energy (10 520 J +/- 7073 vs 7474 J +/- 3803; P = ...Continue Reading

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