Table 2. Lesion and procedural characteristics and OCT analysis.
| Overall | SED | Non-SED | p-value | |
|---|---|---|---|---|
| (N = 175) | (N = 32) | (N = 143) | ||
| Culprit lesions | 0.96 | |||
| RCA | 42 (24.0) | 8 (25.0) | 34 (23.8) | |
| LAD | 98 (56.0) | 19 (59.4) | 79 (55.2) | |
| LCX | 32 (18.3) | 5 (15.6) | 27 (18.9) | |
| LMT | 2 (1.1) | 0 (0.0) | 2 (1.4) | |
| SVG | 1 (0.6) | 0 (0.0) | 1 (0.7) | |
| AHA/ACC lesion classification | 0.03 | |||
| A | 50 (28.6) | 3 (9.4) | 47 (32.9) | |
| B1 | 48 (27.4) | 12 (37.5) | 36 (25.2) | |
| B2 | 20 (11.4) | 5 (15.6) | 15 (10.5) | |
| C | 57 (32.6) | 12 (37.5) | 45 (31.5) | |
| Type of stent | 0.57 | |||
| DP-EES | 106 (60.6) | 21 (65.6) | 85 (59.4) | |
| R-ZES | 31 (17.7) | 7 (21.9) | 24 (16.8) | |
| BP-EES | 23 (13.1) | 3 (9.4) | 20 (14.0) | |
| BP-SES | 15 (8.6) | 1 (3.1) | 14 (9.8) | |
| Number of stents | ||||
| 1 stent | 162 (92.6) | 27 (84.4) | 135 (94.4) | 0.0504 |
| 2 stents | 12 (6.9) | 4 (12.5) | 8 (5.6) | |
| 3 stents | 1 (0.6) | 1 (3.1) | 0 (0.0) | |
| Stent diameter, mm | 3.0 (2.5–3.0) | 3.0 (2.7–3.0) | 3.0 (2.5–3.0) | 0.57 |
| Total stent length, mm | 20 (16–28) | 22 (18–28) | 20 (16–28) | 0.37 |
| Lesion preparation | ||||
| Pre-dilatation | 116 (66.3) | 20 (62.5) | 96 (67.1) | 0.68 |
| Aspiration | 19 (10.9) | 8 (25.0) | 11 (7.7) | 0.009 |
| Rotational atherectomy | 7 (4.0) | 1 (3.1) | 6 (4.2) | 1.00 |
| Post-balloon dilatation | 77 (44.0) | 18 (56.3) | 59 (41.3) | 0.17 |
| Direct stenting | 63 (36.0) | 14 (43.8) | 49 (34.3) | 0.32 |
| Overlapping stent | 13 (7.4) | 5 (15.6) | 8 (5.6) | 0.06 |
| OCT/OFDI analysis | ||||
| Proximal reference, mm | 6.4 (4.8–8.3) | 6.3 (4.3–8.4) | 6.4 (4.8–8.3) | 0.49 |
| Distal reference, mm | 4.7 (3.5–5.9) | 4.2 (3.3–5.8) | 4.8 (3.6–6.1) | 0.32 |
| Mean reference, mm | 5.7 (4.3–7.2) | 5.9 (3.8–6.6) | 5.7 (4.4–7.4) | 0.60 |
| Minimal stent area, mm2 | 5.0 (3.9–6.1) | 5.3 (3.6–6.4) | 5.0 (3.9–5.9) | 0.64 |
| Percent of stent expansion, % | 89.8 (78.7–103.4) | 95.4 (87.3–100.7) | 87.0 (77.0–104.8) | 0.051 |
Values are presented as median (interquartile range), or n (%) for categorical variables. ACC, American College of Cardiology; AHA, American Heart Association; BP, biodegradable polymer; DP, durable polymer; EES, everolimus-eluting stent; LAD left anterior descending artery; LCX, left circumflex artery; LMT, left main trunk; OCT, optical coherence tomography; OFDI, optical frequency domain imaging; RCA, right coronary artery; SES, sirolimus-eluting stent; SVG, saphenous vein graft.