Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.
World J Gastrointest Surg. Apr 27, 2026; 18(4): 113354
Published online Apr 27, 2026. doi: 10.4240/wjgs.v18.i4.113354
Published online Apr 27, 2026. doi: 10.4240/wjgs.v18.i4.113354
Analysis of the efficacy of first hepatic portal blockade in laparoscopic microwave ablation treatment of hepatic vascular tumors
Tao-Fang Meng, Sheng Wang, Chen Chen, Shi-Kang Deng, The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650500, Yunnan Province, China
Author contributions: Meng TF, Wang S, and Chen C are responsible for data collection and analysis; Meng TF is responsible for writing the report; Deng SK is responsible for reviewing the report. All authors unanimously decided to submit the manuscript for publication.
Supported by Yunnan Provincial Clinical Medical Center for Digestive System Diseases Project, No. 2024YNLCYXZX0140; and Yunnan Provincial Academician Expert Workstation, No. 202305AF150148.
Institutional review board statement: The study protocol was approved by the Yunnan Provincial First People’s Hospital’s Ethics Committee (approval No. KHLL2025-KY234).
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
Data sharing statement: All data is publicly available.
Corresponding author: Shi-Kang Deng, Associate Professor, The Affiliated Hospital of Kun
Received: August 28, 2025
Revised: January 22, 2026
Accepted: February 25, 2026
Published online: April 27, 2026
Processing time: 241 Days and 14.9 Hours
Revised: January 22, 2026
Accepted: February 25, 2026
Published online: April 27, 2026
Processing time: 241 Days and 14.9 Hours
Core Tip
Core Tip: Laparoscopic microwave ablation is safe and effective for small hemangiomas as it does not block the first hepatic portal. Giant hemangiomas (diameter ≥ 10.0 cm) are more commonly treated with hepatic resection rather than microwave ablation. If the first hepatic portal is not blocked, surgery is simpler and quicker for large hemangiomas (5.0 cm ≤ diameter < 10.0 cm). Conversely, blocking the first hepatic portal reduces the “heat sink effect” - a phenomenon where blood flow dissipates heat during ablation, thereby improving ablation efficiency and lowering the incidence of adverse reactions. However, there is no consensus or research on whether to block the first hepatic portal in this case.