Coronary Artery Disease Clinical Trial
Official title:
Long-term Clinical Outcomes in Patients With FFR GuidEd-DeFERred CoRonAry Lesions, Assessed by IVUS Analysis
This study was a multicenter retrospective study that included intravascular ultrasound (IVUS) in patients with delayed stent insertion based on fractional flow reserve (FFR) in moderately narrowed coronary lesions. We would like to see the effect of lesion characteristics on clinical course.
From January 2007 to August 2014, patients who meet the criteria for selection and exclusion
from Keimyung University Dongsan Hospital, Seoul National University Hospital, Inje
University Busan Paik Hospital, and Ulsan University Hospital are included.
1. Target patient screening The database will select patients who meet the selection and
exclusion criteria.
2. target patient characteristics The age, sex, smoking status, medical history
(hypertension, diabetes mellitus, hyperlipidemia), diagnosis, and left ventricular blood
count measured by echocardiography should be checked through a computerized medical
record.
3. coronary angiography Coronary angiography images of the subjects in the blinded state
are analyzed to investigate the length of lesions, reference vessel diameter, and
minimal vessel diameter.
4. intravascular ultrasound In the blinded state, the vessel's vessel area, plaque area,
lumen area, etc. are measured by analyzing intravascular ultrasound images of the
patient using EchoPlaque (Indec Systems, Mountain View, CA).
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