Complex left atrial appendage closure using 3D printing system simulation in a patient with mitral prosthetic valve: a case report.

IF 0.8 Q4 CARDIAC & CARDIOVASCULAR SYSTEMS

European Heart Journal: Case Reports Pub Date : 2024-10-23 eCollection Date: 2024-11-01 DOI:10.1093/ehjcr/ytae574

Luca Vicini Scajola, Antonio Sanzo, Giulia Magrini, Stefania Marconi, Roberto Rordorf

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Abstract

Background: Left atrial appendage (LAA) closure (LAAc) has emerged as a safe and effective alternative to oral anticoagulation (OAC) for stroke prevention in patients with atrial fibrillation (AF) and contraindications to OAC.

Case summary: A 61-year-old woman with permanent AF and a history of mitral surgery replacement with mechanical prosthesis was referred to our cardiology department to undergo LAAc. The preoperative computed tomography (CT) revealed that the ostium of the LAA was close to the mitral prosthesis ring. As a result of the difficult LAA morphology, a CT image-based virtual model was created, then a 3D printing model was prepared in our laboratory, and procedure simulation was performed with the two different LAA occlusion devices (plug- vs. pacifier-like models) to see which one was more suitable for the patient anatomy.

Discussion: In this case of complex LAAc in a patient with mechanical prosthetic mitral valve, the use of a 3D printed model has guided prosthesis selection and device sizing reducing procedure time and complications.

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利用 3D 打印系统模拟二尖瓣人工瓣膜患者的复杂左房阑尾闭合：病例报告。

背景：病例摘要：一位61岁的女性患者患有永久性房颤，并有二尖瓣手术置换机械假体的病史，她被转诊至我院心内科接受LAAc手术。术前计算机断层扫描（CT）显示，LAA 的出口靠近二尖瓣假体环。由于 LAA 形态复杂，我们创建了一个基于 CT 图像的虚拟模型，然后在本实验室制作了一个 3D 打印模型，并使用两种不同的 LAA 闭塞装置（塞子式与奶嘴式模型）进行了手术模拟，以确定哪种装置更适合患者的解剖结构：讨论：在这例使用机械人工二尖瓣的复杂 LAAc 患者中，三维打印模型的使用指导了人工瓣膜的选择和装置的尺寸，减少了手术时间和并发症。

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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