Coronary slow flow phenomena

Coronary slow-flow phenomenon is an angiographic phenomenon where the distal opacification of the coronary artery is delayed on angiography in the absence of significant coronary artery disease
.Coronary slow flow phenomenon needs to be differentiated from slow-flow resulting from percutaneous coronary intervention.
incidence of coronary slow-flow is reported to be 1-7% of all coronary angiograms.
In an observational study, Kurtoglu et al found dypiridamole to be useful in the management of CSFP, with symptomatic as well as angiographic improvement
Coronary slow-flow phenomenon usually has a benign long term outcome but may be associated with relapses. Occasional ventricular arrhythmias and even sudden cardiac death have been reported.