Relationship of Anatomic Variations and Arterial Reconstruction of the Hepatic Artery: Prevalence and Effect on Orthotopic Liver Transplantation.

医学 血栓形成 动脉 肝移植 优势比 移植 外科 并发症 心脏病学 内科学 放射科
作者
Daniel Fernandes Dala Riva,Lucas Souto Nacif,Michel Ribeiro Fernandes,Nataliê Almeida Silva,Rafael Soares Pinheiro,Vinícius Rocha-Santos,Rodrigo Bronze de Martino,Daniel Reis Waisberg,Rubens Arantes Macedo,Liliana Ducatti,Luciana Haddad,Flávio Henrique Ferreira Galvão,Wellington Andraus,Luiz Augusto Carneiro D’Albuquerque
出处
期刊:Transplantation Proceedings [Elsevier BV]
卷期号:54 (5): 1313-1315 被引量:3
标识
DOI:10.1016/j.transproceed.2022.04.012
摘要

Identifying anatomic variations of the hepatic artery is essential in liver transplantation. The artery supply is crucial for the procedure's success, and, in some cases of anatomic variations, they need reconstruction. Hepatic artery thrombosis is a severe vascular complication. This study evaluated the prevalence of anatomic variations and correlated arterial reconstructions with hepatic artery thrombosis.We performed a retrospective analysis of medical records, adult patients undergoing liver transplant, donor's arterial anatomy, arterial reconstructions, and thrombosis after transplant from January 2019 to December 2020.Among 226 cases, 71% had normal anatomy. All these patients met Michel's classification subtypes, of which 161 (71%) were class I, which is the most common. The second most common variation was class II, with 25 donors (11%), followed by class III, with 17 donors (7.5%). Anatomic artery variations were a risk factor for hepatic artery thrombosis development (odds ratio [OR], 7.2; 95% confidence interval [CI], 2.1-22.5; P = .002). In the same way, the artery reconstruction was associated with hepatic artery thrombosis arising with postoperative time (OR, 18.0; 95% CI, 4.9-57.5; P < .001). Global hepatic artery thrombosis occurred in 11 cases (4.87%).Anatomic hepatic artery variations are frequent and do not make liver transplant unfeasible. However, variations that require reconstruction may raise the risk of thrombosis.
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