Ontology type: schema:ScholarlyArticle Open Access: True
2018-06-28
AUTHORSJeehoon Kang, Kyung Woo Park, Michael S. Lee, Chengbin Zheng, Jung-Kyu Han, Han-Mo Yang, Hyun-Jae Kang, Bon-Kwon Koo, Hyo-Soo Kim
ABSTRACTBackgroundNonculprit lesions are the major cause of future cardiovascular events. However, the natural course of nonculprit lesions and angiographic predictors of plaque progression are not well-studied. The purpose of our study was to observe the natural course of nonculprit lesions, and to identify predictors of unanticipated future events and angiographic progression in nonculprit lesions.MethodsWe analyzed 640 nonculprit lesions with a length of ≥2 mm and luminal narrowing ≥30% from 320 patients who had two serial angiographic follow-ups; 9 to 13 months post-PCI and 24 months post-PCI. The study endpoints were nonculprit-ischemia driven revascularization (IDR) and the rate of diameter stenosis (DS) progression. Those with progression of DS > 12%/year were defined as ‘rapid progressors’.ResultsDuring the median follow-up period of 737 days, 20 lesions in 20 patients (6.3%) required nonculprit-IDR. Independent predictors of nonculprit-IDR were diabetes (hazard ratio [HR] 2.93, 95% confidence interval [CI] 1.072–8.007, p = 0.036) and lesion type B2/C (HR 4.017, 95% CI 1.614–9.997, p = 0.003). The presence of one or both of the two major risk factors was associated with significant DS progression (3.0 ± 6.8% vs. 3.5 ± 6.1% vs. 6.8 ± 9.9% for lesions with 0, 1 and both risk factors, p < 0.001). Among the 640 lesions, 38 lesions (5.9%) in 33 patients were rapid progressors, while risk factors of rapid progressors included lesion type B2/C as a lesion-related risk factor (HR 1.998, 95% CI 1.006–3.791, p = 0.048) and diabetes mellitus as a patient-related risk factor (HR 3.725, 95% CI 1.937–7.538, p < 0.001). Lesions with both risk factors (type B2/C lesions in diabetic patients) were at the highest risk of rapid progression (odds ratio 3.250, 95% CI 1.451–7.282), compared to type A/B1 lesions in non-diabetic patients.ConclusionNonculprit-IDR was not uncommon during the 2-year follow up period in our population. The major risk factors of nonculprit lesion progression were diabetes and lesion type B2/C.Trial registrationRetrospectively registered and approved by the institutional review board of Seoul National University Hospital (No.: 1801–138-918) on February 2nd, 2018. More... »
PAGES130
http://scigraph.springernature.com/pub.10.1186/s12872-018-0870-9
DOIhttp://dx.doi.org/10.1186/s12872-018-0870-9
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/29954346
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