Intravalvular mitral membrane causing severe obstruction at the mitral valve in a young man

Area of Science:

• Cardiology
• Cardiac Surgery
• Medical Imaging

Background:

• A 30-something male with a history of surgical repair for coarctation of the aorta presented with progressive dyspnea.
• Physical examination revealed a mid-diastolic murmur, suggesting mitral valve dysfunction.

Purpose of the Study:

• To diagnose and manage a suspected intravalvular mitral membrane causing significant obstruction.
• To describe the surgical intervention and outcomes for this rare condition.

Main Methods:

• Diagnostic workup included transthoracic echocardiography, transesophageal echocardiography, and cardiac CT angiography.
• Surgical management involved resection of the intravalvular mitral membrane and mechanical mitral valve replacement.

Main Results:

• Imaging confirmed an intravalvular mitral membrane causing severe mitral obstruction.
• The patient experienced complete symptom resolution following the surgical procedure.

Conclusions:

• Intravalvular mitral membrane is a rare cause of severe mitral obstruction, even in adults with prior cardiac surgery.
• Surgical intervention can effectively treat this condition, leading to favorable patient outcomes.