[Intravascular ultrasound imaging on the endarterectomized coronary arteries in two patients].
Intravascular ultrasound imaging on the endarterectomized coronary arteries in two patients are reported with a review of the literature. Case 1, a 62-year-old male and case 2, a 64-year-old male underwent endarterectomy of the right coronary artery (#3--#4PD, 4AV) combined with coronary arterial bypass grafting. Coronary arteriography (CAG) and intravascular ultrasound imaging (IVUS) were performed one month after operation. CAG revealed bypass grafts and endarterectomized coronary arteries to be patent together, and IVUS revealed endarterectomized coronary arteries had two layers, outer layer to be hyperechoic and inner layer to be heterogenously echoic in both cases. The histological examination of specimens suggests this heterogenously echoic area represents media, thrombus and irregularly proliferated intima. Therefore, anticoagulant therapy after endarterectomy should be strictly performed.
Department of Cardiovascular Surgery, National Sanatorium Toyohashi-Higashi Hospital, Aichi, Japan.
T
T
Fukuchi
K
K
Murase
Y
Y
Ohkawa
S
S
Koike
K
K
Kubo
H
H
Nogaki
D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000601:surgery; D003331:Coronary Vessels / Q000000981:diagnostic imaging* / Q000601:surgery*; D004691:Endarterectomy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D014463:Ultrasonography