A Case of Spontaneous Coronary Artery Dissection Complicated by Free Wall Rupture.

Spontaneous coronary artery dissection (SCAD) is an unusual and underdiagnosed cause of nonatherosclerotic acute coronary syndrome (ACS). Patients might present in various ways including chest pain, ST-elevation ACS, ventricular arrhythmia, and sudden cardiac death. In a few reports, it manifested initially as cardiac tamponade. The association of SCAD with free wall rupture is extremely rare. We present a unique case of a 70-year-old woman who initially presented with non-ST elevation ACS and was found to have SCAD on angiography, which was subsequently complicated by cardiac tamponade with free wall rupture.