Korean Circ J.  1997 May;27(5):549-553. 10.4070/kcj.1997.27.5.549.

Coronary Flow Velocity Pattern in Patients with Myocardial Bridging of Coronary Artery

• Cho YK
• Kim HS
• Kim W
• Shin JH
• Tahk SJ
• Choi WB

• KMID: 1857718
• DOI: http://doi.org/10.4070/kcj.1997.27.5.549

Abstract

Myocardial bridging is a systolic compression(milking effect) of mainly the left anterior descending coronary artery with coronary angiography. This phoenomenon is known to occur when a segment of an artery travels through the myocardium. The function significance of this finding remains controversial. We identified angiographic systolic compression of the coronary artery in two patients and documented the coronary flow velocity patterns and coronary flow velocity reserve with intracoronary injection of adenosine. The intracoronary flow velocity patterns distal to the myocardial bridging segment of the left anterior descending artery show the attenuated systolic component and abnormal diastolic flow velocity pattern with the exaggerated early acceleration, a diastolic spike and dome shape of coronary flow. The coronary flow velocity reserve was reduced.

Keyword

yocardial bridging; Coronary flow velocity; Coronary flow velocity reserve

MeSH Terms

Acceleration
Adenosine
Arteries
Coronary Angiography
Coronary Vessels*
Humans
Myocardial Bridging*
Myocardium
Adenosine