Journal of Interventional Cardiology / 2021 / Article / Tab 2 / Research Article
Reduction of Lipid-Core Burden Index in Nonculprit Lesions at Follow-Up after ST-Elevation Myocardial Infarction: A Randomized Study of Bioresorbable Vascular Scaffold versus Optimal Medical Therapy Table 2 Angiographic characteristics.
Characteristics All Group 1 Group 2 BVS + OMT OMT N plaques = 15N plaques = 7N plaques = 8Baseline Coronary artery segment location Proximal left anterior descending n (%)2 (13) 1 (14) 1 (12) NS Mid-left anterior descending n (%)6 (40) 4 (57) 2 (25) NS Distal left anterior descending n (%)1 (6) 1 (28) 0 NS Distal left circumflex n (%)2 (13) 0 2 (25) NS Proximal right n (%)1 (6) 0 1 (12) NS Mid-right n (%)3 (20) 1 (28) 2 (25) NS Quantitative Coronary Angiography Reference vessel diameter (mm) Mean ± sd 3.09 ± 0.55 3.05 ± 0.32 3.12 ± 0.65 0.4 Minimum lumen diameter (mm) Mean ± sd 1.79 ± 0.43 1.71 ± 0.37 1.85 ± 0.44 0.28 Diameter stenosis (%) Mean ± sd 41.6 ± 10 43.4 ± 8 40.1 ± 10.7 0.27 Fractional flow reserve Mean ± sd 0.87 ± 0.06 0.85 ± 0.04 0.89 ± 0.06 0.13 IVUS findings Minimum lumen area (mm2 ) Mean ± sd 7.57 ± 2.33 7.50 ± 0.90 7.63 ± 2.96 0.45 Plaque burden (%) Mean ± sd 52.2 ± 7.96 54.98 ± 5.76 49.76 ± 8.31 0.1 Arc of calcium at the LRP site 0 quadrants n (%)11 (73) 5 (71) 6 (75) NS 1 quadrant n 2 (13) 1 1 NS 2 quadrants n 1 (6) 0 1 NS 3 quadrants n 1 (6) 1 0 NS 4 quadrants n 0 0 0 NS NIRS findings MaxLCBI4mm Median (Q 1, Q 3) 402 (321, 572) 402 (348, 564) 373 (298, 516) 0.34 Follow-up Quantitative Coronary Angiography Reference vessel diameter (mm) Mean ± sd 3.07 ± 0.55 2.96 ± 0.36 3.17 ± 0.63 0.25 Minimum lumen diameter (mm) Mean ± sd 2.06 ± 0.46 2.35 ± 0.30 1.81 ± 0.38 0.01 Diameter stenosis (%) Mean ± sd 31.6 ± 16.1 19.8 ± 7.4 41.7 ± 13.2 0.003 Fractional flow reserve Mean ± sd 0.90 ± 0.05 0.88 ± 0.04 0.94 ± 0.02 0.18 IVUS findings Minimum lumen area (%) Mean ± sd 7.57 ± 2.12 8.17 ± 1.34 6.84 ± 2.42 0.22 Plaque burden (%) Mean ± sd 49.13 ± 8.50 50.02 ± 9.37 48.24 ± 6.95 0.1 Change of plaque burden Mean ± sd 2.55 ± 10.65 5.83 ± 6.87 1.39 ± 11.92 0.14 NIRS findings MaxLCBI4mm Median (Q 1, Q 3) 31 (17, 127) 116.5 (26, 331) 31 (11, 31) 0.1 Change of maxLCBI4mm Median (Q 1, Q 3) 300 (269, 370) 306 (257, 377) 300 (278, 346) 0.44
