Introduction
Myocardial bridge(MB) is a rare congenital disease with a relatively good prognosis. It has been associated with unstable angina, myocardial infarction and sudden cardiac death in the literature. In this retrospective study, we evaluated the incidence and prognosis of patients who underwent coronary angiography and were diagnosed to have isolated MB.
Methods
The coronary angiograms of 18250 patients were examined again for the presence of MB at Samsun Education and Research Hospital between 2008 and 2011. Out of these patients, 241 (1.32%) had myocardial bridge and 181 (0.99%) had this anomaly as an isolated finding. Patients with isolated MB were then grouped into two according to the severity of the lesion in cardiac systole after intracoronary nitrate infusion. Patients with <70% stenosis formed group 1 (Non-critical stenosis) and patients with ≥70% stenosis formed group 2 (critical stenosis). Demographic characteristics, symptoms at first diagnosis, and coronary angiographic findings (the localization and severity of stenosis) were all noted. The follow-up of patients was performed via the phone calls, polyclinic visits and hospital recordings.
Methods
The coronary angiograms of 18250 patients were examined again for the presence of MB at Samsun Education and Research Hospital between 2008 and 2011. Out of these patients, 241 (1.32%) had myocardial bridge and 181 (0.99%) had this anomaly as an isolated finding. Patients with isolated MB were then grouped into two according to the severity of the lesion in cardiac systole after intracoronary nitrate infusion. Patients with <70% stenosis formed group 1 (Non-critical stenosis) and patients with ≥70% stenosis formed group 2 (critical stenosis). Demographic characteristics, symptoms at first diagnosis, and coronary angiographic findings (the localization and severity of stenosis) were all noted. The follow-up of patients was performed via the phone calls, polyclinic visits and hospital recordings.
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