Table 3.
Occurrence of Additional Coronary Artery Anomalies in Relation to Coronary Artery Patterns
| Usual (1LCx‐2R) | Circumflex from the right coronary artery (1L‐2CxR) | Partially Inverted (1RL‐2Cx) | Inverted (1R‐2LCx) |
Double Orifice Sinus 2 (2LCx,R) |
Double Orifice Sinus 1 (1R,LCx) |
Single Orifice (1RLCx) (2LCxR) |
P Value | |
|---|---|---|---|---|---|---|---|---|
| n=423 | n=101 | n=35 | n=12 | n=19 | n=8 | n=7 | ||
| Intramural course (IMCA) | 2 (0.5) | 3 (3.0) | 0 | 1 (8.3) | 15 (78.9) | 0 | 0 | <0.001 |
| Abnormal ostial origin | 34 (8.0) | 2 (2.0) | 3 (8.6) | 1 (8.3) | 6 (31.6) | 0 | 0 | 0.007 |
| Accessory orifice | 19 (4.5) | 13 (12.9) | 10 (28.6) | 1 (8.3) | 0 | 2 (25.0) | 1 (14.3) | <0.001 |
Coding of coronary arteries according to the Leiden convention: 1, sinus 1; 2, sinus 2; L, left anterior descending; Cx, left circumflex; R, right coronary artery. Data are presented as numbers and percentages in each pattern group (parentheses). IMCA indicates intramural coronary artery.