Variations in hepatic circulation: a study of 500 abdominal computed tomography scans.

IF 0.8 Q4 PERIPHERAL VASCULAR DISEASE

Jornal Vascular Brasileiro Pub Date : 2025-05-30 eCollection Date: 2025-01-01 DOI:10.1590/1677-5449.202401102

Maria Eduarda Zen Biz, Jéssica Paola Salame, Gustavo Gumz Correia, Rafael Saviolo Moreira

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引用次数: 0

Abstract

Background: Knowledge of the vascular anatomy of the liver and other abdominal organs helps surgeons improve preoperative planning, achieve greater surgical success, prevent complications, and reduce morbidity and mortality.

Objectives: To report the prevalence of anatomical variation in the proper hepatic artery and portal vein observed through computed tomography.

Methods: This retrospective study was based on 500 3-phase abdominal computed tomography scans. Variations in arterial anatomy were classified according to the Michels system (1966), while those in regarding portal vein anatomy were classified according to the Cheng system (1996).

Results: A total of 31.2% of the cases showed variations in arterial vascularization, the most prevalent being type V (8.2%). No participants were identified with type X, and 0.4% could not be classified. A total of 21.8% showed variation in venous vascularization, with type IV being the most prevalent (8%).

Conclusions: Medical knowledge of these variations and their prevalence is fundamental for the correct surgical management of upper abdomen pathologies and lower rates of postoperative complications. Variations not classified by previous trials should be categorized according to their clinical importance, and new studies should clarify national population patterns to reduce mortality rates from surgical procedures that involve these vessels.

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肝循环的变化：500个腹部计算机断层扫描的研究。

背景：了解肝脏和其他腹部器官的血管解剖有助于外科医生改进术前计划，获得更大的手术成功率，预防并发症，降低发病率和死亡率。目的：报告计算机断层扫描观察到的肝固有动脉和门静脉解剖变异的普遍性。方法：本回顾性研究基于500个3期腹部计算机断层扫描。动脉解剖变异按Michels系统（1966）分类，门静脉解剖变异按Cheng系统（1996）分类。结果：31.2%的病例出现动脉血管化变异，以V型最为常见（8.2%）。没有参与者被确定为X型，0.4%无法分类。21.8%的患者表现为静脉血管化变异，以IV型最为常见（8%）。结论：了解这些变异及其流行情况是正确处理上腹部病变和降低术后并发症发生率的基础。以前的试验未分类的变异应根据其临床重要性进行分类，新的研究应阐明国家人口模式，以降低涉及这些血管的外科手术的死亡率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Jornal Vascular Brasileiro Medicine-Cardiology and Cardiovascular Medicine

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： The Jornal Vascular Brasileiro is editated and published quaterly to select and disseminate high-quality scientific contents concerning original research, novel surgical and diagnostic techniques, and clinical observations in the field of vascular surgery, angiology, and endovascular surgery. Its abbreviated title is J. Vasc. Bras., which should be used in bibliographies, footnotes and bibliographical references and strips.