CASE REPORT article
Front. Cardiovasc. Med.
Sec. Coronary Artery Disease
This article is part of the Research TopicCase Reports in Coronary Artery Disease: 2025View all 19 articles
Giant pseudoaneurysm after percutaneous coronary intervention: a case report
Provisionally accepted
- Jilin University, Changchun, China
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Coronary Pseudoaneurysm (CPA) refers to a rupture of the coronary artery wall where blood is encapsulated by surrounding pericardial tissue, thrombus, or fibrous tissue, forming a fluid-filled sac lacking normal vascular walls. While pseudoaneurysms can develop spontaneously, they most commonly occur following coronary intervention procedures such as percutaneous coronary intervention (PCI). Causes include excessive balloon or stent usage, high-pressure balloon dilation, and arterial wall damage from coronary atherosclerotic resection or laser angioplasty. Although asymptomatic in many cases, a ruptured CPA can lead to life-threatening acute cardiac tamponade. Notably, postoperative mortality in some PCI patients may result from both malignant arrhythmias and recurrent myocardial infarction, with CPA rupture being a contributing factor. This case report describes a patient who developed a massive pseudoaneurysm one year after undergoing chronic coronary occlusion (CTO) lesion recanalization. Through surgical review, we analyze the etiology, discuss subsequent interventions, and summarize clinical lessons to provide guidance for managing such complex cases.
Keywords: Coronary artery pseudoaneurysm, Chronic coronary artery occlusion, Percutaneouscoronary intervention, Covered stent, Coronary artery rupture, Cardiac Tamponade
Received: 09 Sep 2025; Accepted: 17 Nov 2025.
Copyright: © 2025 Tian, Wang, Liu, Tong, He, Liu and Li. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Guohui Liu, liugh@jlu.edu.cn
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