Table 3 Angiographic features of single-vessel MB patients undergoing RACA according to MB grades
From: Is myocardial bridge more frequently detected on radial access coronary angiography?
Variables | Group 1 (MB < 50%) (n: 108) | Group 2 (51% < MB < 70%) (n: 59) | Group 3 (MB ≥ 71%) (n: 68) | Total (n: 235) |
|---|---|---|---|---|
LAD, n (%) | 100 (92.6) | 57 (96.6) | 68 (100) | 225 (95.7) |
CX, n (%) | 6 (5.6) | 2 (3.4) | 0 | 8 (3.4) |
RCA, n (%) | 2 (1.9) | 0 | 0 | 2 (0.9) |
Length of MB, mm (median (IQR Q1–Q3)) | 17 (13–22.75) | 23 (19–27.75) | 22 (17.25–32.75) | 20 (15–25.25) |
Affected segment of vessel from MB, n (%) | ||||
Proximal | 1 (0.9) | 2 (3.4) | 1 (1.5) | 4 (1.7) |
Mid | 92 (85.2) | 51 (86.4) | 61 (89.7) | 204 (86.8) |
Distal | 15 (13.9) | 6 (10.2) | 6 (8.8) | 27 (11.5) |