Table 2.

Contraindications to the use of radial artery (RA) as a conduit for coronary artery bypass grafting

When not to use RA

History of major arm trauma

Prior surgery on the arm

Vasculitis

Raynaud syndrome

Scleroderma

Advanced chronic kidney disease

Dialysis

Angiography via RA access

Insufficient ulnar artery compensation, evaluated with Allen test, Barbeau test, echo-Doppler, Doppler plethysmography

Mild-to-moderate stenosis of the coronary target vessel, evaluated with visual inspection, quantitative coronary angiography, fractional flow reserve