title: Coronary plaque characteristics that indicate distal embolization during percutaneous coronary intervention in patients with stable angina-virtual histology intravascular ultrasound study.
abstract: Distal embolization (DE) is a serious complication of percutaneous coronary intervention (PCI) in patients with stable angina. The purpose of this study was to evaluate the coronary plaque characteristics that indicate DE during PCI in patients with stable angina using virtual histology intravascular ultrasound (VH-IVUS). Three hundred and sixty-four consecutive stable angina patients who underwent PCI were enrolled in this study. The patients were divided into two groups as follows: patients exhibiting DE (DE group, n = 10) and patients without DE (non-DE group, n = 354). Coronary plaque compositions were assessed by VH-IVUS. The fibro-fatty (FF) ratio (28 ± 17 vs. 11 ± 9 %, p < 0.0001) was higher in the DE group compared with the non-DE group. The best cut-off value of FF ratio for prediction of DE was 20 %, with a sensitivity of 0.80 and a specificity of 0.81 (odds ratio; 17.1, 95 % confidence interval 3.56-82.5, p = 0.0004). Coronary plaques with a high FF ratio may be the predictor of indicating DE in patients with stable angina during PCI.
authors: Department of Cardiology, Nara Prefectural Nara Hospital, 1-30-1 Hiramatsu, Nara, Nara, 631-0846, Japan. inoue-f.2011@hi2.enjoy.ne.jp
authors: Fumitaka
authors: F
authors: Inoue
authors: Kazuhiro
authors: K
authors: Ueshima
authors: Takatomi
authors: T
authors: Fujimoto
authors: Kihyon
authors: K
authors: An
authors: Shiro
authors: S
authors: Uemura
authors: Yoshihiko
authors: Y
authors: Saito
mesh_terms: D000368:Aged; D060050:Angina, Stable / Q000000981:diagnostic imaging* / Q000601:surgery; D003328:Coronary Thrombosis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D062645:Percutaneous Coronary Intervention / Q000009:adverse effects*; D058226:Plaque, Atherosclerotic / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D012189:Retrospective Studies; D012307:Risk Factors; D018084:Ultrasonography, Interventional / Q000379:methods*