Table.
Prevalence and characteristics of intra-atrial right coronary artery
| Variables | Total number (n=21) |
|---|---|
| Prevalence rate of IARCA, n (%) | 21 (0.29) |
|
| |
| Age (years) | 53.7 |
|
| |
| Sex ratio (Male: Female) | 1.3:1 |
|
| |
| Segment of RCA involved, n (%) | |
| • Proximal | 0 (0) |
| • Mid | 16 (76.2) |
| • Distal | 5 (42.9) |
|
| |
| Length of IARCA (mm), mean (range) | 14.85 (3.5–29) |
|
| |
| Depth of IARCA (mm), mean (range) | 2.57 (1.2–8) |
|
| |
| Prevalence of IARCA with luminal atherosclerosis, n (%) | 0 (0) |
|
| |
| Prevalence of IARCA with disease in the rest of RCA, n (%) | 2 (9) |
|
| |
| Coronary dominance, n (%) | Right, 17 (81); Left, 4 (19) |
|
| |
| Other coronary anomaly, n (%) | 1 (4.7) (anomalous origin of left circumflex artery from the right sinus) |
IARCA, intra-atrial right coronary artery; RCA, right coronary artery.