Dual Artery Compression vs. Radial Artery-Only Hemostasis: Impact on Radial Artery Occlusion (EASY-RAO)

Inclusion Criteria: * any patients referred for diagnostic angiography and possible percutaneous coronary intervention (PCI) Exclusion Criteria: * Patient unable to understand study design or objectives * Unable to sign informed consent * Patient taking warfarin or other anticoagulant therapy * Chronic RAO on both sides precluding TRA * Previous ipsilateral transradial approach * Inability to comply with the study follow-up * Presence of plethysmographic waveform with radial and ulnar occlusive compression * Pre-existing local complication (i.e. hematoma, pseudo-aneurysm, ...) precluding access-site evaluation.