Postventriculotomy aneurysm and left ventricular dysfunction following closed mitral commissurotomy

Area of Science:

• Cardiology
• Cardiac Surgery
• Pathology

Background:

• Mitral stenosis is a common valvular heart disease.
• Transventricular commissurotomy is a surgical procedure to treat mitral stenosis.
• Ventricular aneurysms are a potential complication of cardiac surgery.

Observation:

• A 39-year-old female presented with a ventricular aneurysm at the site of prior transventricular commissurotomy for mitral stenosis.
• Cardiac catheterization revealed abnormal left ventricular response to both exercise and increased afterload.
• The patient's death occurred post-mitral valve replacement surgery.

Findings:

• Autopsy confirmed left ventricular aneurysm as the primary cause of cardiac dysfunction.
• No other etiological factors were identified to explain the observed left ventricular dysfunction.
• The aneurysm significantly impaired the left ventricle's ability to respond to physiological stress.

Implications:

• Ventricular aneurysms following commissurotomy can lead to severe left ventricular dysfunction.
• This case highlights the importance of monitoring for aneurysm formation post-cardiac surgery.
• Understanding aneurysm pathophysiology is crucial for improving surgical outcomes and patient management.