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Lessons Learned From Intermittent Dysfunction of Mechanical Heart Valve.
Semih Kalkan1, Ahmet Güner2, Macit Kalçık3
1Department of Cardiology, Erzurum Training and Research Hospital, Erzurum, Turkey.
Anatolian Journal of Cardiology
|August 11, 2022
Summary
Intermittent mechanical prosthetic heart valve dysfunction, though rare, can have serious outcomes. Causes include thrombus, pannus, and vegetation, necessitating careful evaluation for optimal treatment decisions.
Area of Science:
- Cardiology
- Cardiovascular Surgery
- Biomedical Engineering
Background:
- Intermittent malfunction of prosthetic heart valves is a rare but serious complication.
- Understanding the clinical features and causes is crucial for patient management.
Purpose of the Study:
- To describe the clinical features of patients experiencing intermittent mechanical prosthetic heart valve dysfunction.
- To identify the etiologic causes of this rare complication.
Main Methods:
- Retrospective analysis of 16 patients diagnosed with intermittent prosthetic valve malfunction.
- Evaluation conducted at Koşuyolu Training and Research Hospital between 2010 and 2021.
Main Results:
- Common causes included residual chordae (n=4), thrombus (n=4), vegetation (n=2), and pannus (n=2).
- Specific findings in mitral and aortic valve replacements highlighted issues like stuck leaflets, regurgitation, and obstruction.
- One mono-leaflet mitral valve replacement showed a stuck valve due to arrhythmia.
Conclusions:
- Intermittent prosthetic heart valve dysfunction can lead to severe outcomes.
- Treatment decisions require assessing the degree of regurgitation or stenosis.
- The frequency of valve entrapment is a key factor in determining optimal therapy.
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