Assessment of coronary flow parameters by transesophageal echocardiography in patients with isolated coronary artery ectasia: effect of intravenous nitroglycerin.

Background: We sought to assess coronary flow parameters in patients with isolated coronary artery ectasia (CAE) as compared to subjects with normal coronaries.

Methods: Consecutively, we enrolled 30 patients with ectasia of the left anterior descending (LAD) coronary artery (study group), and 10 subjects with normal coronaries (control group). All patients underwent transesophageal echocardiography to visualize the LAD.