Papillary muscle rupture following acute myocardial infarction

The Japanese Journal of Thoracic and Cardiovascular Surgery : Official Publication of the Japanese Association for Thoracic Surgery = Nihon Kyōbu Geka Gakkai Zasshi
Hiroya MinamiTsutomu Shida

Abstract

Papillary muscle rupture following acute myocardial infarction (AMI), which rarely occurs, leads to catastrophic outcomes. We reviewed 6 patients who were diagnosed as having papillary muscle rupture. Between February 1986 and September 2002, 6 consecutive patients underwent mitral valve replacement (MVR) for acute mitral regurgitation due to postinfarction papillary muscle rupture (4 men and 2 women, mean age 67 years). Preoperatively, all were in New York Heart Association (NYHA) class IV. All patients had intraaortic balloon pumping, and one needed additional percutaneous cardiopulmonary support. Operations were performed within 1 to 19 days (mean 6.8) after the onset of AMI, and within 24 hours after papillary muscle rupture. Complete ruptures were found in 5 of 6 patients. Four patients had posterior papillary rupture and 2 patients anterior. All patients underwent MVR to preserve the posterior mitral leaflet. Concomitant coronary artery bypass grafting was performed in 5 of 6 patients (mean 1.6 grafts per person) and pulmonary venous isolation for atrial fibrillation in one patient. The cardiopulmonary bypass time ranged from 178 to 325 minutes (mean 236), and the aortic cross clamp time from 123 to 196 minutes (mean 155)...Continue Reading

References

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Citations

Sep 23, 2008·Cases Journal·Suriya JayawardenaLouis Thelusmond
May 19, 2011·Annals of Thoracic and Cardiovascular Surgery : Official Journal of the Association of Thoracic and Cardiovascular Surgeons of Asia·Yosuke TakahashiHirokazu Ohashi
Jan 21, 2012·Pharmacology & Therapeutics·Xiao-Ming GaoXiao-Jun Du
Aug 9, 2017·Journal of Cardiopulmonary Rehabilitation and Prevention·Leonida CompostellaFabio Bellotto

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