Anterior and posterior papillary muscle rupture after myocardial infarction
Hiroyuki Morokuma1, Yuji Katayama2, Shugo Koga2
1Department of Thoracic and Cardiovascular Surgery, Fukuoka Tokushukai Hospital, Kasuga, Fukuoka, Japan moro_fumi0828@yahoo.co.jp.
Insights
A patient experienced cardiogenic shock from a heart attack, leading to severe mitral regurgitation caused by papillary muscle rupture. Prompt intervention included coronary intervention and mitral valve replacement, successfully treating the critical cardiac event.
Area of Science:
- Cardiology
- Cardiac Surgery
- Interventional Cardiology
Background:
- Acute myocardial infarction can lead to life-threatening complications.
- Papillary muscle rupture is a rare but severe mechanical complication of myocardial infarction.
- Severe mitral regurgitation resulting from papillary muscle rupture often presents with cardiogenic shock.
Abstract:
A 66-year-old man was referred in cardiogenic shock due to acute myocardial infarction. Echocardiography revealed severe mitral regurgitation with prolapse of the posterior mitral leaflet due to papillary muscle rupture. Emergency coronary angiography showed subtotal occlusion of the left circumflex coronary artery. A percutaneous coronary intervention was performed immediately. After inducing percutaneous cardiopulmonary support, emergency mitral valve replacement was carried out. The anterior and posterior papillary muscles attached to the posterior mitral leaflet were completely ruptured. Pathological findings showed massive necrosis.
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