Relation between angiographic lesion severity, vulnerable plaque morphology and future adverse cardiac events (from the Providing Regional Observations to Study Predictors of Events in the Coronary Tree study)

The American Journal of Cardiology
Kyeong Ho YunAkiko Maehara

Abstract

Previous angiographic studies have suggested that the future risk for major adverse cardiovascular events (MACEs) is related to coronary stenosis severity. The aim of this study was to use the grayscale and virtual histology (VH)-intravascular ultrasound (IVUS) data from the Providing Regional Observations to Study Predictors of Events in the Coronary Tree (PROSPECT) study to identify underlying lesion morphologic characteristics that might explain these findings. In PROSPECT, patients presenting with acute coronary syndromes in whom percutaneous coronary intervention was successful underwent 3-vessel grayscale and VH-IVUS and were followed for a median of 3.4 years for the incidence of MACEs. Overall, 3,115 nonculprit lesions detected by IVUS were divided into quartiles according to baseline angiographic diameter stenosis. From the first to fourth quartiles, there were increases in the prevalence of lesions with IVUS minimum luminal areas ≤ 4 mm(2), IVUS plaque burden ≥ 70%, and VH-IVUS thin-cap fibroatheroma (13.4%, 22.0%, 24.2%, and 30.3%, respectively, p <0.001), along with an increased frequency of plaque ruptures and greater necrotic core volumes. The incidence of lesions with plaque burden ≥ 70%, minimum luminal area ≤ 4...Continue Reading

References

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Citations

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