Abstract
Background
Radial access is now considered the preferred approach for coronary angiography and percutaneous coronary intervention because of the low risk of vascular complications. However, radial access failure is not uncommon, leading to crossover to a different access site. The CHA 2 DS 2 -VASc score is used to estimate stroke risk in patients with atrial fibrillation. Our study aimed to assess the CHA 2 DS 2 -VASc score in predicting failure of the transradial approach, resulting in crossover to transfemoral access (TFA) for coronary angiography.