Prevalence of coronary artery fistula in adults performing coronary CT angiography among Egyptian population: a single center study

Abstract

Abstract Background The prevalence of coronary artery fistula (CAF) among Egyptian population is increasing due to widespread availability of coronary CT angiography using high-end CT scanners. The purpose of this observational study was to determine the incidence and types of CAF detected among Egyptian population during routinely performed coronary CT angiography. Results Among the 2263 retrospectively evaluated CT coronary angiography studies, CAF was detected only in 17 (0.75%) patients with proximal LAD being the commonest vessel of origin; in 5 cases (29.4%) and main pulmonary artery (MPA) the commonest site of fistula termination; in 3 cases (17.6%). Indeterminate site of fistula termination was present in two cases (11.7%) due to limited scan coverage. Conclusions Multislice coronary CT angiography is a useful non-invasive imaging modality for diagnosis of CAF by demonstrating vessel of origin, course and site of termination, with CAF prevalence and types among Egyptian population being reported in this study based on routinely performed coronary CT angiography.