Table E4.
Modern subcohort AAOCA anatomic characteristics stratified by presence and location of obstructive CAD
| All (N = 273) |
No CAD absent (N = 242) |
Only anomalous coronary with CAD (N = 19) |
Normal- origin coronary with CAD (N = 12) |
P value | |
|---|---|---|---|---|---|
| n (%) | n (%) | n (%) | n (%) | ||
| Anomalous coronary | .19 | ||||
| RCA | 162 (59) | 147 (61) | 10 (53) | 5 (42) | |
| LMCA | 53 (19) | 48 (20) | 4 (21) | 1 (8.3) | |
| LAD | 7 (2.6) | 6 (2.5) | 1 (5.3) | 0 (0) | |
| LCx | 47 (17) | 37 (15) | 4 (21) | 6 (50) | |
| Multiple | 4 (1.5) | 4 (1.7) | 0 (0) | 0 (0) | |
| Origin | .93 | ||||
| Opposite sinus | 201 (74) | 180 (74) | 12 (63) | 9 (75) | |
| Noncoronary sinus | 1 (0.37) | 1 (0.41) | 0 (0) | 0 (0) | |
| Suprasinus | 35 (13) | 30 (12) | 4 (21) | 1 (8.3) | |
| Opposite coronary | 36 (13) | 31 (13) | 3 (16) | 2 (17) | |
| Slit-like orifice | 88/190 (46) | 82/175 (47) | 5/12 (42) | 1/3 (33) | .85 |
| Course | |||||
| Interarterial | 150/233 (64) | 139/212 (66) | 9/16 (56) | 2/5 (40) | .39 |
| Intramural | 102/211 (48) | 96/193 (50) | 5/14 (36) | 0/4 (0) | .38 |
| Intraseptal | 33/196 (17) | 32/177 (18) | 1/14 (7) | 0/5 (0) | .34 |
AAOCA, Anomalous aortic origin of a coronary artery; CAD, coronary artery disease; RCA, right coronary artery; LMCA, left main coronary artery; LAD, left anterior descending coronary artery; LCx, left circumflex.