Table 2.
Distribution of the Coronary Artery Anomalies in 12,457 Adult Patients Who Underwent Angiography
| No. | Incidence (%) | Anomalies (%) | |
|---|---|---|---|
| Anomalies of origin and distribution | 100 | 0.80 | 89.3 |
| Ectopic origin from the sinuses of Valsalva of the aorta | – | – | – |
| LMCA from RSV | 1 | 0.008 | 0.89 |
| Separate origins of LAD and LCX in the RSV | 1 | 0.008 | 0.89 |
| Separate origins of LAD and LCX in LSV | 71 | 0.6 | 63.4 |
| LCX from RCA or RSV | 10 | 0.08 | 8.9 |
| RCA from LSV | 10 | 0.08 | 8.9 |
| Ectopic origin from the ascending aorta | – | – | – |
| LMCA from ascending aorta | – | – | – |
| RCA from ascending aorta | 5 | 0.04 | 4.46 |
| Ectopic origin from the pulmonary artery | – | – | – |
| Single coronary artery | 2 | 0.016 | 1.78 |
| RCA supplying the heart | – | – | – |
| LMCA supplying the heart | – | – | – |
| Origin of the LAD and LCX from RCA | 2 | 0.016 | 1.78 |
| Origin of the RCA from the LMCA | – | – | – |
| Intercoronary communications and | 12 | 0.09 | 10.7 |
| coronary artery fistulae | |||
| Intercoronary communications | |||
| AV‐node branch‐LCX anastomosis | – | – | – |
| LAD‐PDA anastomosis | – | – | – |
| Coronary artery fistulae | 12 | 0.09 | 10.7 |
| LAD‐PA fistula | 7 | 0.06 | 6.3 |
| LCX‐PA fistula | 2 | 0.02 | 1.8 |
| Conus branch‐RV fistula | 1 | 0.008 | 0.9 |
| RCA‐RV fistula | – | – | – |
| LCX‐RV fistula | 1 | 0.008 | 0.9 |
| RCA‐RA fistula | 1 | 0.008 | 0.9 |
Abbreviations: AV = atrioventricular; LAD = left anterior descending coronary artery; LCX = left circumflex coronary artery; LMA = left main coronary artery; PA = pulmonary artery; PDA = posterior descending coronary artery; RA = right atrium; RCA = right coronary artery; RSV = right sinus of valsalva; RV = right ventricle