Left ventricular aneurysm resection: indications and long-term follow-up

Area of Science:

• Cardiovascular Surgery
• Cardiac Surgery
• Interventional Cardiology

Background:

• Chronic postinfarction left ventricular aneurysms are a serious complication of myocardial infarction.
• These aneurysms can lead to heart failure, angina, and life-threatening ventricular arrhythmias.
• Surgical intervention is often considered for symptomatic patients.

Purpose of the Study:

• To evaluate the safety and efficacy of surgical resection of chronic postinfarction left ventricular aneurysms.
• To assess the impact of combined aneurysmectomy and coronary artery bypass grafting (CABG) on patient outcomes.
• To determine the correlation between postoperative myocardial contractility and functional capacity.

Main Methods:

• Retrospective analysis of 44 patients undergoing left ventricular aneurysm resection.
• 26 patients (59%) also received concomitant coronary artery bypass grafting.
• Postoperative functional capacity assessed using New York Heart Association (NYHA) classification and ventriculography with myocardial contraction analysis.

Main Results:

• Low operative mortality rate of 4.5% (2/44).
• Significant improvement in functional class: 91% of patients improved to NYHA Class I or II postoperatively.
• Long-term survival was not adversely affected by concomitant CABG; regional myocardial contraction correlated with functional improvement.

Conclusions:

• Ventricular aneurysmectomy combined with coronary artery bypass grafting is a safe and effective procedure.
• The surgery leads to marked improvement in patients' functional capacity and longevity.
• Restoration of regional myocardial contractility is a key factor in postoperative functional recovery.