Table 2. Location of Coronary Lesions for Paraffin-Embedded Sections.
| PIT without macrophages | PIT with macrophages | Early fibroatheroma | Late fibroatheroma | P value | |
|---|---|---|---|---|---|
| All paraffin-embedded lesions (n=128) | (n=27) | (n=37) | (n=41) | (n=23) | |
| Artery (LAD / LCX / RCA) | 14 (52%) / 9 (33%) / 4 (15%) | 20 (54%) / 6 (16%) / 11 (30%) | 22 (54%) / 9 (22%) / 10 (24%) | 6 (26%) / 7 (30%) / 10 (43%) | 0.21 |
| Location (proximal / mid / distal) | 20 (74%) / 6 (22%) / 1 (4%) | 16 (43%) / 17 (46%) / 4 (11%) | 13 (32%) / 20 (49%) / 8 (20%) | 13 (57%) / 6 (26%) / 4 (17%) | 0.15 |
|
| |||||
| For the assessment of inflammation, vasa vasorum, and apoptosis (n=60) | (n=10) | (n=18) | (n=19) | (n=13) | |
| Artery (LAD / LCX / RCA) | 5 (50%) / 4 (40%) / 1 (10%) | 10 (56%) / 2 (11%) / 6 (33%) | 13 (68%) / 2 (11%) / 4 (21%) | 4 (31%) / 6 (46%) / 3 (23%) | 0.11 |
| Location (proximal / mid / distal) | 8 (80%) / 1 (10%) / 1 (10%) | 7 (39%) / 9 (50%) / 2 (11%) | 8 (42%) / 7 (39%) / 4 (21%) | 7 (54%) / 4 (31%) / 2 (15%) | 0.38 |
|
| |||||
| For proteoglycan staining (n=40) | (n=10) | (n=10) | (n=10) | (n=10) | |
| Artery (LAD / LCX / RCA) | 4 (40%) / 4 (40%) / 2 (20%) | 5 (50%) / 2 (20%) / 3 (30%) | 4 (40%) / 4 (40%) / 2 (20%) | 2 (20%) / 1 (10%) / 7 (70%) | 0.20 |
| Location (proximal / mid / distal) | 6 (60%) / 4 (40%) / 0 (0%) | 4 (40%) / 5 (50%) / 1 (10%) | 2 (20%) / 6 (60%) / 2 (20%) | 6 (60%) / 2 (20%) / 2 (20%) | 0.35 |
|
| |||||
| For calcium staining (n=28) | (n=7) | (n=9) | (n=12) | N/A | |
| Artery (LAD / LCX / RCA) | 5 (71%) / 1 (14%) / 1 (14%) | 5 (56%) / 2 (22%) / 2 (22%) | 5 (42%) / 3 (25%) / 4 (33%) | N/A | 0.80 |
| Location (proximal / mid / distal) | 6 (86%) / 1 (14%) / 0 (0%) | 5 (56%) / 3 (33%) / 1 (11%) | 3 (25%) / 7 (58%) / 2 (17%) | N/A | 0.15 |
Values are expressed as n (%).
LAD = left anterior descending artery; LCX = left circumflex artery; N/A=not applicable; PIT = pathologic intimal thickening; RCA = right coronary artery.