Usefulness of transthoracic Doppler echocardiography for noninvasive assessment of coronary blood flow in a patient with symptomatic myocardial bridging.
Myocardial bridging (MB) is a congenital anomaly characterized by systolic compression of the tunnelled arterial segment. MB may cause myocardial ischaemia due to abnormal coronary blood flow. We report a case of MB in which transthoracic Doppler echocardiography was used to evaluate the long-term effect of beta-blocker therapy on abnormal coronary blood flow. In this case, beta-blocker therapy with bisoprolol (5.0 mg/day) for 1 month eliminated the patient's symptoms and normalized coronary blood flow through the tunnelled arterial segment.
Inaba
Shinji
S
Division of Cardiology, Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.
Okayama
Hideki
H
Higashi
Haruhiko
H
Nishimura
Kazuhisa
K
Inoue
Katsuji
K
Ogimoto
Akiyoshi
A
Higaki
Jitsuo
J
D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D000787:Angina Pectoris / Q000188:drug therapy / Q000209:etiology* / Q000503:physiopathology; D017298:Bisoprolol / Q000627:therapeutic use; D001783:Blood Flow Velocity; D017023:Coronary Angiography / Q000379:methods; D003326:Coronary Circulation / Q000502:physiology*; D004452:Echocardiography / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D008875:Middle Aged; D054084:Myocardial Bridging / Q000150:complications / Q000000981:diagnostic imaging*; D018570:Risk Assessment; D012720:Severity of Illness Index; D016896:Treatment Outcome
D000319:Adrenergic beta-Antagonists; D017298:Bisoprolol