Table 2 Results for detected coronary artery anomalies

Subgroup 1:

Absent left main trunk (split origination of LCA); not found

Subgroup 2:

Anomalous location of coronary ostium within aortic root or near proper aortic sinus of Valsalva (for each artery); not found

Subgroup 3:

Anomalous location of coronary ostium outside normal "coronary" aortic sinuses

• High origin of coronary arteries: left main coronary artery and right

coronary artery; normal termination

▪ n = 1 (0.1%)

▪ gender: female

▪ age: 19 years

▪ symptoms: syncope

▪ known coronary artery anomaly

▪ initial diagnosis: ICA

Subgroup 4:

Anomalous location of coronary ostium at improper sinus (which may involve joint origination or "single" coronary pattern)

• Right coronary artery from left anterior Sinus of Valsalva with further

vessel course between aorta and pulmonary trunk (n = 8; 1.1%)

○ separate ostium with left main coronary artery, normal termination

(Subgroup 4a)

▪ n = 7 (0.9%)

▪ male:female = 4:3

▪ age: 43.7 ± 18.2 years (range: 17-73 years)

▪ symptoms: chest-pain

▪ known coronary artery anomaly (n = 3)

▪ initial diagnosis: ICA (n = 1); echocardiography (n = 2)

○ common ostium with left main coronary artery, single coronary

artery, normal termination (Subgroup 4b)

▪ n = 1 (0.1%)

▪ male

▪ age: 26 years

▪ symptoms: chest-pain

▪ unknown coronary artery anomaly

• Left coronary artery from right anterior Sinus of Valsalva with further

vessel course between aorta and pulmonary trunk

○ Common ostium with RCA and no circumflex ramus, single coronary

artery, intramyocardial course of proximal left anterior descending

coronary artery (Subgroup 4c)

▪ n = 1 (0.1%)

▪ gender: male

▪ age: 58 years

▪ symptoms: chest-pain

▪ known coronary artery anomaly

▪ initial diagnosis: ICA

• Circumflex ramus from right anterior Sinus of Valsalva with further

vessel course in posterior atrio-ventricular groove (Subgroup 4d)

▪ n = 7 (0.94%)

▪ male:female = 6:1

▪ age: 46.3 ± 21.1 years (range: 15-65 years)

▪ symptoms: chest-pain

▪ known coronary artery anomaly (n = 1)

▪ initial diagnosis: echocardiograpy (n = 1)