Electronic ISSN 2287-0237

VOLUME

CORONARY SLOW FLOW PHENOMENON: A CASE REPORT

SEPTEMBER 2015 - VOL.10 | CASE REPORT

Angina pectoris and abnormally slow contrast propagation into the unobstructed coronary artery, the so-called coronary slow flow (CSF) phenomenon was first recognized four decades ago but the etiology remained unclear. We reported a case of CSF phenomenon presenting with acute coronary syndrome in a middle-aged man who had multiple coronary risk factors. Intracoronary ultrasound revealed no significant plaque burden in related epicardial arteries. The pathogenic mechanisms of small artery disease and the role of endothelial dysfunction are discussed and relevant literature has been reviewed.

Keywords

coronary slow flow, unstable angina, small coronary artery disease, endothelial dysfunction, intracoronary ultrasound

MEDIA
Figure 1: ECG during chest heaviness showed no remarkable ST-T changes.
Figure 2: Coronary angiogram showed abnormally slow contrast flow (open arrow, A&C) in all three epicardial arteries and late filling in distal part (white arrow, B&D), LM: left main, LAD: left anterior descending, Cx: circumflex.
Figure 3: Intracoronary ultrasound sonogram delineated only minimal plaque burden in LM, proximal and mid LAD artery (white arrow, A-D) and no plaque in distal LAD artery (E). LM: left main, LAD: left anterior descending.
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