Case Report
Copyright ©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Surg. Dec 27, 2023; 15(12): 2926-2931
Published online Dec 27, 2023. doi: 10.4240/wjgs.v15.i12.2926
Portal vein embolization for closure of marked arterioportal shunt of hepatocellular carcinoma to enable radioembolization: A case report
Xiang-Dong Wang, Nai-Jian Ge, Ye-Fa Yang
Xiang-Dong Wang, Nai-Jian Ge, Ye-Fa Yang, Department of Interventional Radiology, Shanghai Eastern Hepatobiliary Surgery Hospital, Shanghai 200438, China
Author contributions: Wang XD composed and drafted the paper; Ge NJ revised and edited the draft; Yang YF conceptualized, designed, revised, and edited the draft.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrolment. Approval for publishing the study data was obtained from the patient.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ye-Fa Yang, MD, Chief Doctor, Professor, Department of Interventional Radiology, Shanghai Eastern Hepatobiliary Surgery Hospital, No. 700 Moyu North Road, Shanghai 200438, China. decentofni@163.com
Received: August 17, 2023
Peer-review started: August 17, 2023
First decision: October 17, 2023
Revised: October 24, 2023
Accepted: December 4, 2023
Article in press: December 4, 2023
Published online: December 27, 2023
Abstract
BACKGROUND

Marked arterioportal shunt (APS) can be a contraindication for transarterial radioembolization (TARE) because of the risk of radiation-induced liver toxicity or pneumonitis. To date, the best method to close marked APS to reduce intrahepatic shunt (IHS) and hepatopulmonary shunt (HPS) before TARE has not been elucidated.

CASE SUMMARY

This case report describes a novel strategy of embolization of the portal venous outlet to reduce IHS and HPS caused by marked APS before TARE in a patient with advanced hepatocellular carcinoma (HCC). The patient had a significant intratumoral shunt from the tumor artery to the portal vein and had already been suspected based on pre-interventional magnetic resonance angiography, and digital subtraction angiography (DSA) confirmed the shunt. Selective right portal vein embolization (PVE) was performed to close the APS outlet and DSA confirmed complete closure. Technetium-99m macroaggregated albumin was administered and single photon emission computed tomography revealed a low HPS with 8.4%. Successful TARE was subsequently performed. No major procedure-related complication occurred.

CONCLUSION

Closure of APS with PVE during mapping angiography of advanced-stage HCC to enable reduction of HPS and subsequent TARE is feasible.

Keywords: Portal vein embolization, Arterioportal shunt, Intrahepatic shunt, Hepatopulmonary shunt, Transarterial radioembolization, Case report

Core Tip: Marked arterioportal shunt (APS) can be a contraindication for transarterial radioembolization (TARE) because of the risk of radiation-induced liver toxicity or pneumonitis. In this case report, portal vein embolization was performed, for the first time, to close the APS outlet in a patient with advanced hepatocellular carcinoma. Single photon emission computed tomography revealed a low intrahepatic shunt and hepatopulmonary shunt, and TARE was performed successfully.