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Coronary arterial aneurysm formation after balloon angioplasty
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Percutaneous transluminal coronary angioplasty (PTCA) can lead to coronary artery aneurysms. This study describes five male patients who developed these aneurysms after PTCA, highlighting potential complications of the procedure.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Medical Imaging
Background:
- The precise mechanism of coronary artery dilatation during percutaneous transluminal coronary angioplasty (PTCA) remains unclear.
- PTCA is a common procedure for treating coronary stenosis, but potential complications require further investigation.
Purpose of the Study:
- To describe cases of coronary arterial aneurysms developing after PTCA.
- To identify any distinguishing features in patients who develop aneurysms post-PTCA.
Main Methods:
- Case series describing five male patients who developed coronary arterial aneurysms at the PTCA site.
- Review of patient history, functional class (New York Heart Association class III or IV), and angiographic findings.
- Analysis of complications including acute myocardial infarction, coronary occlusion, intimal disruption, and reocclusion.
Main Results:
- Five male patients developed coronary arterial aneurysms after PTCA.
- Patients presented with complex pre- and post-procedural courses, including evolving myocardial infarction, coronary occlusion, intimal disruption, and reocclusion.
- Aneurysms were identified between 11 days and 4 months post-PTCA, with patients ranging from asymptomatic to symptomatic.
Conclusions:
- Coronary arterial aneurysms are a potential, albeit uncommon, complication of PTCA.
- No specific pre-procedural features clearly distinguished patients who developed aneurysms from others undergoing PTCA.
- Further research is needed to elucidate the exact mechanism and identify risk factors for aneurysm formation after PTCA.
Abstract:
The mechanism of coronary stenosis dilatation by percutaneous transluminal coronary angioplasty (PTCA) is incompletely understood. Five men who developed coronary arterial aneurysms at the site of PTCA are described. All patients were in New York Heart Association functional class III or IV at the time of PTCA. In 2 patients acute myocardial infarction was evolving and both had acute coronary occlusion. The other 3 patients had angiographic evidence of intimal disruption or acute coronary reocclusion as a result of PTCA, one of whom had undergone emergency coronary artery bypass grafting. Three patients received intracoronary streptokinase during PTCA. One patient was asymptomatic and 4 were symptomatic when the aneurysms were identified between 11 days and 4 months after PTCA. Other than the complex course and anatomy of these patients before and immediately after PTCA, no other features distinguished them from others undergoing this procedure.