Coronary-Subclavian Steal Syndrome

**Definition:** A complication of INTERNAL MAMMARY-CORONARY ARTERY ANASTOMOSIS whereby an occlusion or stenosis of the proximal SUBCLAVIAN ARTERY causes a reversal of the blood flow away from the CORONARY CIRCULATION, through the grafted INTERNAL MAMMARY ARTERY (internal thoracic artery), and back to the distal subclavian distribution.

**Tree numbers:** - C14.280.647.250.647 - C14.907.585.250.647 - C23.550.767.115