TAVI complication: Prosthetic valve leaflet dislodgment after post-dilatation.

IF 0.6 Q4 SURGERY
Haitham Abu Khadija, Mohammad Alnees, Gera Gandelman, Jacob George, Alex Blatt
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引用次数: 0

Abstract

Introduction and importance: Transcatheter aortic valve implantation (TAVI) is a minimally invasive procedure used to treat severe aortic stenosis. While TAVI is generally safe and effective, it can be complicated by rare adverse events such as prosthetic leaflet dislodgment leading to acute free aortic regurgitation.

Case presentation: We report the case of a female patient who experienced acute free aortic regurgitation following elective TAVI. This complication arose due to prosthetic leaflet dislodgment after post-dilatation of the implanted valve. The timely identification and management of this rare complication are essential to prevent potentially fatal outcomes.

Clinical discussion: The moderate paravalvular regurgitation (PVR) observed in this case was likely caused by the unsealing of heavily calcified aortic valve leaflets. While post-dilatation is a routine practice to optimize valve function, it poses the risk of serious complications, including leaflet dislodgment. Transoesophageal echocardiography (TEE) confirmed the loss of function of the prosthetic leaflet, which was likely exacerbated by aggressive post-dilatation techniques. The use of intravascular lithotripsy could be considered to mitigate the risk of significant PVR by effectively modifying the calcified valve structure.

Conclusions: Acute prosthetic leaflet dislodgment leading to free aortic regurgitation is a very rare but serious complication of TAVI. Early recognition and immediate intervention are crucial to manage this life-threatening event and optimize patient outcomes.

TAVI 并发症:扩张后人工瓣叶脱落。
导言和重要性:经导管主动脉瓣植入术(TAVI)是一种用于治疗严重主动脉瓣狭窄的微创手术。虽然经导管主动脉瓣植入术通常安全有效,但也可能因罕见的不良事件(如人工瓣叶脱落导致急性游离主动脉瓣反流)而变得复杂:我们报告了一例女性患者在择期进行 TAVI 后出现急性游离主动脉瓣反流的病例。这一并发症是由于植入瓣膜扩张后人工瓣叶脱位引起的。及时发现和处理这种罕见的并发症对于防止潜在的致命后果至关重要:本病例中出现的中度主动脉瓣旁瓣返流(PVR)很可能是由于严重钙化的主动脉瓣叶脱落造成的。虽然扩张后手术是优化瓣膜功能的常规做法,但也存在严重并发症的风险,包括瓣叶脱落。经食道超声心动图(TEE)证实了人工瓣叶功能的丧失,而积极的扩张后技术很可能加剧了这种丧失。可以考虑使用血管内碎石术,通过有效改变钙化的瓣膜结构来降低出现明显PVR的风险:急性人工瓣叶脱位导致游离主动脉瓣反流是 TAVI 非常罕见但严重的并发症。早期识别和立即干预对于控制这种危及生命的事件和优化患者预后至关重要。
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
CiteScore
1.10
自引率
0.00%
发文量
1116
审稿时长
46 days
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