Radial Artery Harvesting for Coronary Artery Bypass Grafting: A Stepwise-Made Decision

After preoperative tests, including the modified Allen test, Doppler ultrasonography, and pulse oximetry, 30.1% of patients were not considered candidates for radial artery harvesting. This method provides preoperative radial artery selection according to its morphologies, compensatory capacity of collateral circulation, and anatomic properties of ulnar artery.