Effects of Nitroglycerin on the Outcome of Percutaneous Coronary Interventions Via Distal Radial Approach

ApproachTo the Editor,In the catheterization laboratory, radial artery access is recommended as the first choice in most cases.The use of the radial approach provides significant clinical benefits, including reduced access site bleeding and early mobilization.However, radial artery access is associated with several complications, including radial artery spasm, radial artery occlusion, pseudoaneurysm, and arteriovenous fistula.Radial artery spasm is defined as sudden narrowing of the radial artery during cardiac catheterization and is usually diagnosed clinically and angiographically.It is characterized by pain in the forearm during manipulation of the catheter/sheath and difficulty in manipulating the catheter. 1,