Key result
Delayed presentation and recognition of non-ST-elevation myocardial infarction can lead to papillary muscle rupture, a serious mechanical complication.
Case Report (n=2)
Highlights the risk of papillary muscle rupture as a mechanical complication following delayed presentation and recognition of NSTEMI.
Prompts consideration of papillary muscle rupture in post-NSTEMI shock; leaves open true incidence and optimal management.
Papillary muscle rupture is a serious mechanical complication of acute myocardial infarction typically seen within 5-7 days following transmural ST-elevation myocardial infarction. The incidence of papillary muscle rupture has markedly decreased in the modern era due to improved diagnosis and early coronary revascularization of ST-elevation myocardial infarction. As a result, papillary muscle rupture is increasingly seen following non-ST-elevation myocardial infarction where both diagnosis and revascularization can be delayed. In this report, we describe two cases of papillary muscle rupture following delayed presentation of non-ST-elevation myocardial infarction and delayed recognition of papillary muscle rupture.
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Murad et al. (2016) conducted a case report in Papillary muscle rupture following non-ST-elevation myocardial infarction (n=2). Delayed presentation of non-ST-elevation myocardial infarction was evaluated on Papillary muscle rupture. Delayed presentation and recognition of non-ST-elevation myocardial infarction can lead to papillary muscle rupture, a serious mechanical complication.
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