Atrial Myxoma and Rheumatic Mitral Stenosis: Embolic Stroke Strikes Days Before Surgery

Area of Science:

• Cardiology
• Oncology

Background:

• Cardiac myxomas are the most common primary cardiac tumors, frequently located in the left atrium.
• While histologically benign, myxomas possess significant embolic potential, leading to severe complications like ischemic stroke.
• Left atrial myxoma can clinically mimic mitral stenosis by obstructing blood flow through the mitral valve.

Observation:

• A rare case is presented involving a 43-year-old male with concurrent left atrial myxoma and rheumatic mitral valve disease.
• The patient experienced an ischemic stroke secondary to tumor embolization just before scheduled surgery.
• Rheumatic mitral valve disease is the predominant cause of mitral stenosis in developing nations, making its coexistence with cardiac myxoma exceptionally uncommon.

Findings:

• The co-occurrence of cardiac myxoma and rheumatic mitral stenosis is a rare clinical presentation.
• Tumor embolization from left atrial myxoma can precipitate acute neurological events, such as ischemic stroke.
• The diagnostic and management challenges associated with concurrent cardiac pathologies are significant.

Implications:

• This case emphasizes the critical need for timely diagnosis and intervention in patients presenting with complex cardiac conditions.
• Awareness of the potential for myxoma embolization is crucial, even in the presence of other valvular heart diseases.
• Effective management strategies must address both the primary cardiac tumor and associated valvular dysfunction to prevent life-threatening complications.