Abstract
Systolic compression of a coronary artery by overlying myocardial tissue is termed myocardial bridging. Myocardial bridging usually has a benign prognosis, but some cases resulting in myocardial ischemia, infarction and sudden cardiac death have been reported. We are reporting a case of myocardial bridging which was complicated with acute myocardial infarction associated with inappropriate blood donation. A 33 year-old-man was admitted to our emergency with acute anteroseptal myocardial infarction after a blood donation. The electrocardiography showed sinus rhythm and was consistent with an acute anteroseptal myocardial infarction. We decided to perform primary percutanous intervention (PCI). Myocardial bridging was observed in the mid segment of the left anterior descending coronary artery on coronary angiogram. PCI was canceled and medical follow up was decided. Blood transfusion was made because he had a deep anemia. A normal hemoglobin level and clinical reperfusion was achieved after ten hours by blood transfusion. At the one year follow up visit, our patient was healthy and had no cardiac complaints. Myocardial bridging may cause acute myocardial infarction in various clinical conditions. Although the condition in this case caused profound anemia related acute myocardial infarction, its treatment and management was unusual.
Highlights
Systolic compression of a coronary artery by overlying myocardial tissue is termed myocardial bridging
He had smoking history as a risk factor for coronary artery disease and had had atypical chest pain for two years. He had made blood donations of about ten units within the last two years. His chest pain had started after the completion of the most recent blood donation in a health center
The patient was transferred to coronary care unit for medical treatment. Since his hemoglobin level was 6 mg/dl, a blood sample was drawn to investigate the cause of this profound anemia
Summary
The major coronary arteries are located in the sub-epicardial region [1]. Localization of a coronary arterial segment in the myocardial tissue is termed myocardial bridging. Case presentation A 33 year-old-man was admitted to our emergency department complaining of 5 hours of severe crushing chest pain He had smoking history as a risk factor for coronary artery disease and had had atypical chest pain for two years. He had made blood donations of about ten units within the last two years. The patient was transferred to coronary care unit for medical treatment Since his hemoglobin level was 6 mg/dl, a blood sample was drawn to investigate the cause of this profound anemia. Three hours after the patient being admitted to the emergency department, his chest pain had completely disappeared, ST elevations had come to an isoelectric line and frequent ventricular extra-systoles were observed on the monitor. At the one year follow up visit, our patient was healthy and had no cardiac complaints
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