全尺寸3D打印作为慢性起搏器铅侵蚀引起的右心室假性动脉瘤的指南。

Q4 Medicine

JACC. Case reports Pub Date : 2025-10-08 DOI:10.1016/j.jaccas.2025.105335

Yuktesh V. Kalidindi BS , Rida Khan BA , Ece Isin Akduman MD , Divya Ratan Verma MD , Ramy Shoela MD

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引用次数: 0

摘要

背景：室性假性动脉瘤的形成是由于长期的铅侵蚀是罕见的，标准化的诊断和治疗指南是有限的。病例总结：我们报告了一例在计算机断层扫描中发现的右心室假性动脉瘤，该患者最初于2013年放置起搏器，因呼吸衰竭入院。采用PolyJet三维打印技术辅助术前规划和评估导联至心室外凸的空间解剖关系。假性动脉瘤最终被切除，心肌缺损被关闭。讨论：假性动脉瘤缺乏标准化的临床表现和治疗指南，使得诊断具有挑战性。影像对及时诊断和治疗至关重要。关键信息：当其他成像方式在技术上具有挑战性或不确定时，心门控计算机断层扫描在诊断右室假性动脉瘤方面特别有价值。三维打印增强了假性动脉瘤等罕见疾病的诊断和术前计划。

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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Full-Scale 3D Printing as a Guide to Right Ventricular Pseudoaneurysm Due to Chronic Pacemaker Lead Erosion

Background

Ventricular pseudoaneurysm formation due to longstanding lead erosion is rare, and standardized guidelines for diagnosis and management are limited.

Case Summary

We present a case of a right ventricular pseudoaneurysm noted on computed tomography after a patient with a pacemaker, originally placed in 2013, was admitted for respiratory failure. PolyJet three-dimensional printing was employed to assist in presurgical planning and evaluating the spatial anatomic relationship of the lead to the ventricular outpouching. The pseudoaneurysm was eventually excised, and the myocardial defect was closed.

Discussion

Pseudoaneurysms lack both standardized clinical presentations and management guidelines, making diagnosis challenging. Imaging is crucial for timely diagnosis and treatment.

Take-Home Messages

Cardiac-gated computed tomography is particularly valuable in diagnosing right ventricular pseudoaneurysms when other imaging modalities are technically challenging or inconclusive. Three-dimensional printing enhances the diagnosis of and preoperative planning for rare conditions such as pseudoaneurysms.

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