Feasibility, safety and efficacy of ultrasound-guided percutaneous microwave ablation for giant hepatic hemangioma

Abstract

Abstract: Objective To investigate the feasibility, safety and efficacy of microwave ablation (MWA) guided with ultrasound in the treatment of giant hepatic hemangioma (≥ 10 cm in diameter).Methods A total of 13 tumors (≥ 10 cm in diameter) in 12 patients with giant hepatic hemangioma received ultrasound-guided percutaneous MWA in our hospital from December 2013 to June 2016. MWA-related complications were observed. The effcacy of MWA for all patients was assessed using magnetic resonance imaging or enhanced computed tomography within one month after treatment.Results Four male and 8 female patients were enrolled with average age of 41 ± 10 years old (31-65 years old). Besides 1 patient had two hepatic hemangiomas (≥ 10 cm in diameter), the other 11 patients had one hepatic hemangioma (≥ 10 cm in diameter). The average diameter of hemangiomas was 11.7 ± 1.6 cm, ranging from 10 to 14.5 cm. The 13 giant hemangiomas underwent 17 MWA treatments, including 4 received treatment twice. The mean time of single hemangioma ablation was 39.0 ± 14.4 minutes (20-62 minutes). After treatment, 2 patients experienced acute non-oliguric renal dysfunction without other complications, such as intra-abdominal hemorrhage and liver failure. With average follow-up of 20.7 months (5-36 months), 10 giant hemangiomas in 9 patients achieved complete ablation with significant reduction in volume. The primary complete ablation rate was 76.9% (10/13). One patient who failed to the primary treatment received a second MWA treatment 5 months later, and then achieved complete ablation. So the overall complete ablation rate was 84.6% (11/13). Two patients were reviewed regularly without further therapies for small residual tumors.Conclusion Ultrasound-guided percutaneous MWA is a safe, feasible and effective treatment for giant hepatic hemangiomas.

Key words: Hepatic hemangioma, Microwave ablation, Ultrasound, Complication, Complete ablation

QI Xing-xing, TANG Xiao-yin, WANG Zhi, WANG Tao, CUI Dan, ZHAI Bo. Feasibility, safety and efficacy of ultrasound-guided percutaneous microwave ablation for giant hepatic hemangioma[J]. Chinese Hepatolgy, 2017, 22(8): 680-684.

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