Patch repair of postinfarction pseudo- and subepicardial aneurysm of the left ventricle
1Department of Thoracic and Cardiovascular Surgery, Kansai Medical University, Osaka, Japan.
Insights
Left ventricular aneurysms after myocardial infarction are rare but serious. Patch repair may improve heart function and prevent mitral regurgitation in these unusual cases.
Area of Science:
- Cardiology
- Cardiac Surgery
- Cardiovascular Research
Background:
- Left ventricular pseudoaneurysm and subepicardial aneurysm are rare complications following myocardial infarction.
- Medical management for these conditions offers a poor prognosis, and surgical approaches remain controversial.
Observation:
- The study presents three consecutive patients with unusual left ventricular aneurysms.
- Aneurysmal formation occurred shortly after myocardial infarction (within one month).
- In all cases, the papillary muscle was located near the aneurysm's orifice.
Findings:
- Patch repair of these unusual left ventricular aneurysms was performed.
- The procedure demonstrated effectiveness in improving left ventricular function.
- No mitral regurgitation was observed post-repair.
Implications:
- Patch repair presents a potentially effective surgical option for rare left ventricular aneurysms post-myocardial infarction.
- This approach may improve cardiac function and avoid complications like mitral regurgitation.
- Further research into surgical techniques for these specific aneurysms is warranted.
Abstract:
Left ventricular pseudo-aneurysm and subepicardial aneurysm are rare complications of myocardial infarction. However, the prognosis of medical treatment is extremely poor and the operative procedure is controversial. We experienced 3 consecutive patients with this unusual left ventricular aneurysm, and described the clinical presentation, operative procedure and its result in these patients. The interval from myocardial infarction to discovering aneurysmal formation is short. The term was within a month. In all patients, the papillary muscle was in the proximity of the orifice of the aneurysm. Patch repair of these unusual left ventricular aneurysms may be effective for improvement of left ventricular function without mitral regurgitation.
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