Redo mitral valve repair under repeat cardiopulmonary bypass in a dog.

IF 1.3 2区农林科学 Q2 VETERINARY SCIENCES

Veterinary Surgery Pub Date : 2025-10-15 DOI:10.1111/vsu.70040

Kippei Mihara, Yuya Suzuki, Kentaro Ito

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引用次数: 0

Abstract

Objective: To report the lifelong outcome of a redo mitral valve repair performed under repeat cardiopulmonary bypass (CPB) in a dog.

Study design: Case report.

Animal: An 11-year-old, 4.0-kg neutered male Chihuahua, previously treated with surgical mitral valve repair for myxomatous mitral valve disease at the age of eight, presented with recurrent left heart failure caused by worsening residual mitral regurgitation (MR) following the initial repair.

Methods: Redo mitral valve repair was performed 2 years and 7 months after the initial surgery. The procedure, conducted under hypothermic CPB, involved adding and adjusting eight artificial chordae to align with the reconstructed mitral annular plane.

Results: The redo surgery successfully reduced MR, improved cardiac function, and resulted in more than 5 years of survival without MR recurrence.

Conclusion: This case demonstrates the feasibility of redo mitral valve repair in managing recurrent MR in dogs, highlighting its potential to improve long-term outcomes in veterinary surgery and cardiology.

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重复体外循环下犬二尖瓣修复。

目的：报道犬重复体外循环（CPB）下二尖瓣修复术的终身预后。研究设计：病例报告。动物：一只11岁，体重4.0公斤的绝育雄性吉娃娃犬，曾在8岁时因二尖瓣黏液瘤病接受二尖瓣手术修复，首次修复后二尖瓣残余返流（MR）恶化，导致左心衰竭复发。方法：在首次手术后2年7个月再次进行二尖瓣修复。该手术在低温CPB下进行，包括增加和调整8条人工索，使其与重建的二尖瓣环状平面对齐。结果：重做手术成功降低MR，改善心功能，存活5年以上无MR复发。结论：本病例证明了重做二尖瓣修复治疗复发性MR犬的可行性，突出了其改善兽医外科和心脏病学长期预后的潜力。

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

Veterinary Surgery 农林科学-兽医学

CiteScore

3.40

自引率

22.20%

发文量

162

审稿时长

8-16 weeks

期刊介绍： Veterinary Surgery, the official publication of the American College of Veterinary Surgeons and European College of Veterinary Surgeons, is a source of up-to-date coverage of surgical and anesthetic management of animals, addressing significant problems in veterinary surgery with relevant case histories and observations. It contains original, peer-reviewed articles that cover developments in veterinary surgery, and presents the most current review of the field, with timely articles on surgical techniques, diagnostic aims, care of infections, and advances in knowledge of metabolism as it affects the surgical patient. The journal places new developments in perspective, encompassing new concepts and peer commentary to help better understand and evaluate the surgical patient.