Functional characteristics of myocardial bridging: A combined angiographic and intracoronary Doppler flow study

Abstract

Myocardial bridging is characterized by a delay in diastolic lumen gain and a concomitant increase in diastolic intracoronary Doppler flow velocities, which are enhanced by rapid pacing. In combination with a reduced coronary flow reserve and anginal symptoms these findings support the concept of a haemodynamically significant obstruction to coronary flow due to myocardial bridging in a selected subset of patients.