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Table 3 Comparison between the studied groups regarding the angiographic and procedural data of 1st procedure

From: Stenting deferral in primary percutaneous coronary intervention: exploring benefits and suitable interval in heavy thrombus burden

Angiographic and procedural data of 1st procedure Group A (4–16 h deferral)
Number = 50
Group B (7 days deferral)
Number = 50
Group C (immediate)
Number = 50
p value
IRA
 LAD 19 (38%) 29 (58%) 32 (64%) 0.059
 LCX 9 (18%) 3 (6%) 5 (10%)
 RCA 22 (44%) 18 (36%) 13 (26%)
Thrombus grade at 1st procedure
 Grade 2 2 (4%) 0 (0%) 3 (6%) 0.407
 Grade 3 2 (4%) 4 (8%) 9 (18%)
 Grade 4 35 (70%) 25 (50%) 24 (48%)
 Grade 5 11 (22%) 21 (42%) 14 (28%)
Baseline TIMI flow
 TIMI 0 35 (70%) 29 (58%) 33 (66%) 1.000
 TIMI 1 3 (6%) 12 (24%) 6 (12%)
 TIMI 2 8 (16%) 7 (14%) 8 (16%)
 TIMI 3 4 (8%) 2 (4%) 3 (6%)
Procedural data
 Balloon angioplasty 30 (60%) 32 (64%) 32 (64%) 0.892
 Aspiration 12 (24%) 16 (32%) 11 (22%) 0.483
 PCI to non-culprit 11 (22%) 10 (20%) 5 (10%) 0.236
TIMI flow after 1st procedure
 TIMI 0 0 (0%) 0 (0%) 6 (12%) 0.034
 TIMI 1 0 (0%) 0 (0%) 3 (6%)
 TIMI 2 5 (10%) 4(8%) 3 (6%)
 TIMI 3 45 (90%) 46 (92%) 38 (76%)
MBG after 1st procedure
 Grade 0 19 (38%) 14 (28%) 27 (54%) 0.224
 Grade 1 12 (24%) 18 (36%) 9 (18%)
 Grade 2 12 (24%) 12 (24%) 7 (14%)
 Grade 3 7 (14%) 6 (12%) 7 (14%)