Prone position coronary angiography due to intractable back pain: another merit of transradial approach compared to transfemoral approach.

We report a case of prone position coronary angiography due to intractable back pain via left transradial approach. When a patient cannot lie down in a supine position, prone position coronary angiography can be performed alternatively. This may be another merit of transradial approach compared to transfemoral approach on the evaluation of patients with suspected coronary artery disease.