Increased TIMI frame count of coronary arteries in patients with myocardial bridging

Abstract

Objectives: Myocardial bridging (MB) is associated with recurrent chest pain and cardiovascular events.Recently it has been proposed that MB has the features of vasospastic coronary artery characterized withreduced coronary flow reserve and endothelial dysfunction. In this study, an evaluation was made of theangiographic Thrombolysis in Myocardial Infarction (TIMI) frame counts (TFCs) of patients with normalangiogram and those with MB.Methods: The study was conducted as a retrospective analysis of the demographic, laboratory, and angiographicfeatures of consecutive patients who underwent coronary angiography between January 2014 and December2017 in Necip Fazıl City Hospital and Sütçü Imam University, Kahramanmaraş, Turkey.Results: The except for age (51.1 ± 11.6 years vs 56.8 ± 11.4 years) (p = 0.011), no difference was determinedbetween the groups in respect of laboratory parameters and demographic features. TFCs of LAD (42.9 ± 6.1vs 54.5 ± 11.5. p < 0.001), Cx (19.4 ± 4.5 vs 24.4 ± 7.1, p < 0.001), and RCA (26.8 ± 6.2 vs 32.5 ± 8.9, p