医学
内科学
急性冠脉综合征
血管内超声
心脏病学
优势比
置信区间
病变
靶病变
部分流量储备
放射科
经皮冠状动脉介入治疗
外科
冠状动脉造影
心肌梗塞
作者
Yong Xie,Gary S. Mintz,Junqing Yang,Hiroshi Doi,Andrés Íñiguez,George Dangas,Patrick W. Serruys,John McPherson,Bertil Wennerblom,Ke Xu,Giora Weisz,Gregg W. Stone,Akiko Maehara
标识
DOI:10.1016/j.jcmg.2013.10.010
摘要
The aim of this study was to report the frequency, patient and lesion-related characteristics, and outcomes of subclinical, nonculprit plaque ruptures in the PROSPECT (Providing Regional Observations to Study Predictors of Events in the Coronary Tree) study. Plaque rupture and subsequent thrombosis is the most common cause of acute coronary syndrome (ACS). Secondary, subclinical, nonculprit plaque ruptures have been seen in both stable patients and patients with ACS; however, reports of the natural history of these secondary plaque ruptures are limited. After successful stenting in 697 patients with ACS, 3-vessel grayscale and intravascular ultrasound virtual histology (IVUS-VH) was performed in the proximal-mid segments of all 3 coronary arteries as part of a prospective multicenter study. Among 660 patients with complete IVUS data, 128 plaque ruptures were identified in 105 nonculprit lesions in 100 arteries from 93 patients (14.1%). Although the minimum lumen area (MLA) was similar, the plaque burden was significantly greater in nonculprit lesions with a plaque rupture compared with nonculprit lesions without a plaque rupture (66.0% [95% confidence interval: 64.5% to 67.4%] vs. 56.0% [95% confidence interval: 55.6% to 56.4%]; p < 0.0001). IVUS-VH analysis revealed that a nonculprit lesion with a plaque rupture was more often classified as a fibroatheroma than a nonculprit lesion without a plaque rupture (77.1% vs. 51.4%; p < 0.0001). Independent predictors of a plaque rupture were lesion length (per 10 mm; odds ratio: 1.30; p < 0.0001), plaque burden at the MLA site (per 10%; odds ratio: 2.56; p < 0.0001), vessel area at the MLA site (per 1 mm2; odds ratio: 1.13; p < 0.0001), and VH–thin-cap fibroatheroma (odds ratio: 1.80; p = 0.016). During 3 years of follow-up, the incidence of overall major adverse cardiac events did not differ significantly between the patients with and patients without subclinical, nonculprit plaque ruptures. Secondary, nonculprit plaque ruptures were seen in 14% of patients with ACS and were associated with a fibroatheroma phenotype with a residual necrotic core but not with adverse outcomes if patients were treated with optimal medical therapy as part of a multicenter study. (Providing Regional Observations to Study Predictors of Events in the Coronary Tree [PROSPECT]; NCT00180466)
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