Noninvasive assessment of myocardial bridging in the left coronary artery by transthoracic Doppler echocardiography.

Myocardial bridging is a common congenital coronary abnormality recognized primarily with systolic narrowing or 'milking effect' shown by coronary angiography. We report the case of a 58-year-old man with signs and symptoms of myocardial ischemia who underwent transthoracic echocardiography and coronary angiography. The present case suggests the clinical role of transthoracic echocardiography in demonstrating characteristic coronary flow abnormalities in patients with muscular bridge in the region of the mid LAD.