Influence of Preoperative Anatomical Characteristics on the Direction of Inflow Cannula in HeartMate 3.

IF 2.3 3区医学 Q3 ENGINEERING, BIOMEDICAL

Artificial organs Pub Date : 2025-05-05 DOI:10.1111/aor.15018

Shusuke Imaoka, Daisuke Yoshioka, Shunsuke Saito, Takuji Kawamura, Ai Kawamura, Ryohei Matsuura, Yusuke Misumi, Koichi Toda, Shigeru Miyagawa

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引用次数: 0

Abstract

Background: The influence of inflow cannula (IC) direction in HeartMate 3 (HM3) remains unclear. We investigated preoperative anatomical characteristics related to IC direction by analyzing computed tomography (CT) images and assessed the relationship between prognosis and IC direction in HM3.

Methods: We evaluated 48 patients who underwent HM3 implantation and categorized them based on the IC direction: anterior/lateral wall (group A, n = 18), mitral/aortic valve (B, n = 21), and posterior/inferior wall (C, n = 9). In preoperative CT, the positional relationship between the mitral valve, left ventricle (LV) apex, chest wall, and diaphragm was evaluated. The survival rate and freedom rate from complications after HM3 implantation in each group were evaluated.

Results: On preoperative CT, group A had a higher mitral valve height from the LV apex than group B (68 ± 13 and 52 ± 14 mm, respectively; p < 0.01). Group C had a longer distance between the LV apex and chest wall than group B (20 ± 9 and 9 ± 6 mm, p < 0.01). Group C had a shorter thoracic depth from the LV apex than did group B (24 ± 9 and 39 ± 11 mm, p < 0.01). The 3-year survival rates after HM3 implantation for groups A, B, and C were 88%, 90%, and 100%, respectively. The rates of freedom from complications after HM3 implantation at 3 years in groups A, B, and C were 50%, 43%, and 20%, respectively.

Conclusions: The IC direction in HM3 was influenced by the preoperative position of the mitral valve, LV apex, chest wall, and diaphragm. The IC direction in HM3 did not significantly affect survival rates.

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术前解剖特征对心脏导管流入方向的影响

背景：流入套管（IC）方向对心脏伴侣3 （HM3）的影响尚不清楚。我们通过计算机断层扫描（CT）图像分析HM3术前与IC方向相关的解剖学特征，并评估预后与IC方向的关系。方法：对48例HM3植入术患者进行评估，并根据IC方向进行分类：前/侧壁（A组，n = 18），二尖瓣/主动脉瓣（B组，n = 21），后/下壁（C组，n = 9）。术前CT检查二尖瓣、左心室尖部、胸壁、膈肌的位置关系。观察各组HM3植入术后的生存率和并发症发生率。结果：术前CT显示，A组距左室尖顶的二尖瓣高度分别高于B组（68±13和52±14 mm）；结论：HM3的IC方向受术前二尖瓣位置、左室心尖位置、胸壁位置和膈肌位置的影响。HM3的IC方向对生存率无显著影响。

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

Artificial organs 工程技术-工程：生物医学

CiteScore

4.30

自引率

12.50%

发文量

303

审稿时长

4-8 weeks

期刊介绍： Artificial Organs is the official peer reviewed journal of The International Federation for Artificial Organs (Members of the Federation are: The American Society for Artificial Internal Organs, The European Society for Artificial Organs, and The Japanese Society for Artificial Organs), The International Faculty for Artificial Organs, the International Society for Rotary Blood Pumps, The International Society for Pediatric Mechanical Cardiopulmonary Support, and the Vienna International Workshop on Functional Electrical Stimulation. Artificial Organs publishes original research articles dealing with developments in artificial organs applications and treatment modalities and their clinical applications worldwide. Membership in the Societies listed above is not a prerequisite for publication. Articles are published without charge to the author except for color figures and excess page charges as noted.