Double
right coronary artery and its clinical implications.
Shrivastva, "Anomalous origin of
right coronary artery from pulmonary artery," Annals of Pediatric Cardiology, vol.
Caption: Figure 4: Coronary angiography revealing a completely occluded
right coronary artery originating from the left coronary sinus.
Chatzizisis et al., "Spontaneous dissection of
right coronary artery manifested with acute myocardial infarction," Open Cardiovascular Medicine Journal, vol.
Right coronary artery wall thickness averaged 1.32 millimeters (mm) in young adults with HIV, which was significantly greater than the average thickness of 1.09 mm in young adults without HIV (Figure 2).
On the right side, also the radial arterial graft and the native
right coronary artery are occluded.
These myocardium areas which are not sufficiently supplied try to be supplied by the collaterals which develop from the
right coronary artery. Clinical findings occur according to the severity of myocardial dysfunction.
Further decreases in pulmonary arterial pressure result in reversal of flow, as the left coronary artery drains from the
right coronary artery, through collaterals, into the pulmonary artery.
A 67-year-old man underwent triple coronary artery bypass graft surgery (left internal mammary artery to left anterior descending artery, saphenous vein autograft to
right coronary artery and saphenous vein autograft to the circumflex artery).
The patient had a history of two-vessel coronary bypass surgery 14 years earlier, with an internal mammary graft placed to the anterior descending artery and a vein graft placed to the
right coronary artery. Subsequently, the patient underwent intracoronary stent placement to the
right coronary artery distal to the bypass graft insertion.
Narrowed lumen of the
right coronary artery in chronic chagasic patients is associated with ischemic lesions of segmental thinnings of ventricles.