• Jun Gao, Jian-Song Ji, Xue-Mei Ding, Shan Ke, Zong-Hai Xin, Chun-Min Ning, Shi-Gang Guo, Xiao-Long Li, Yong-Hong Dong, and Wen-Bing Sun.
• Department of Hepatobiliary Surgery, Beijing Chao-yang Hospital Affiliated with Capital Medical University, No. 5 Jingyuan Street, Beijing 100043, China.
• Plos One. 2016 Jan 1; 11 (2): e0149755.

ObjectivesThe aim of this study was to evaluate the technical and clinical outcomes of using laparoscopic radiofrequency (RF) ablation for treating large subcapsular hepatic hemangiomas.MethodsWe retrospectively reviewed our sequential experience of treating 124 large subcapsular hepatic hemangiomas in 121 patients with laparoscopic RF ablation.ResultsThe mean diameter of the 124 hemangiomas was 9.1 ± 3.2 cm (5.0-16.0 cm). RF ablation was performed successfully in all patients. There were 55 complications related to the ablation in 26 patients, including 5 of 69 (7.3%) patients with hemangioma <10 cm and 21 of 52 (40.4%) patients with hemangiomas ≥10 cm (P < 0.001). No injuries to abdominal viscera occurred in all the 121 patients. According to the Dindo-Clavien classification, all the complications were minor in 26 patients (Grade I). Out of 124 hepatic hemangiomas, 118 (95.2%) were completely ablated, including 70 of 72 (97.2%) lesions < 10 cm and 48 of 52 (92.3%) lesions ≥ 10 cm (P = 0.236).ConclusionLaparoscopic RF ablation therapy is a safe, feasible and effective procedure for large subcapsular hepatic hemangiomas, even in the hepatic hemangiomas ≥ 10 cm. Its use avoids thermal injury to the abdominal viscera.

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