Abstract
Late coronary aneurysm formation was observed following treatment by directional coronary atherectomy. Intravascular ultrasound disclosed that the mechanism involved was plaque rupture. The cause of coronary aneurysm may be multifactorial after coronary interventions. Intravascular ultrasound imaging is useful for understanding the pathologic mechanism of coronary aneurysm production.
Highlights
A coronary aneurysm has been defined as an area of localized coronary dilatation whose diameter is one-half more than the diameter of the adjacent normal segment [1]
Deep arterial injury is considered as the main cause of aneurysm formation after coronary interventions
Injury or resection of media could lead to gradual dilatation and thinning of the vessel wall, with the reduced wall thickness and increased stress resulting in aneurysm formation
Summary
Masahito Moriuchi,1* MD, Satoshi Saito, MD, Junko Honye, MD, Yoshiaki Takaiwa, MD, Kouichi Horiuchi, MD, Tadateru Takayama, MD, Junji Yajima, MD, Tomoo Shimizu, MD, Katsuo Kanmatsuse, MD, and Jonathan M. Late coronary aneurysm formation was observed following treatment by directional coronary atherectomy. Intravascular ultrasound disclosed that the mechanism involved was plaque rupture. The cause of coronary aneurysm may be multifactorial after coronary interventions. Intravascular ultrasound imaging is useful for understanding the pathologic mechanism of coronary aneurysm production.
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