New holosystolic murmur after acute myocardial infarction.

In the era of primary percutaneous coronary intervention, mechanical complications after acute myocardial infarction are extremely rare, with an incidence of less than 0.5%. Rupture of the ventricular septum is the least frequent occurrence. Nevertheless, current mortality remains high and a prompt diagnosis and treatment are imperative to increase survival. Despite early surgical repair, mortality still remains high.