Myocardial bridging as a cause of acute myocardial infarction: a case report.
BACKGROUND
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.


METHODS
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.


CONCLUSIONS
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.
Akdemir
Ramazan
R
Department of Cardiology, Düzce Medical School, Abant Izzet Baysal University, Düzce, Turkey. rakdemir@yahoo.com
Gunduz
Huseyin
H
Emiroglu
Yunus
Y
Uyan
Cihangir
C
D000328:Adult; D000740:Anemia / Q000097:blood / Q000150:complications; D017023:Coronary Angiography; D023921:Coronary Stenosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000188:drug therapy; D003330:Coronary Vessel Anomalies / Q000150:complications* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000209:etiology*