While the reduced hemorrhagic risk of radial access for percutaneous coronary intervention compared to femoral access is well-established, its main complication remains radial artery occlusion, which can occur in up to 30% of patients. Anticoagulation is the primary preventive measure recommended in clinical practice to reduce the risk of this complication, typically involving heparin injection during the procedure in most centers. However, data on the effect of the timing of heparin injection are limited. The investigators hypothesize that injection of heparin before sheath insertion may reduce the rate of radial artery occlusion compared with injection after sheath insertion.
Patients having 18 years old or older, regardless of gender, undergoing percutaneous radial coronary intervention
Subject affiliated to a social protection health insurance
Subject able to understand the objectives and risks of the research and to provide dated and signed consent
Subject who has been informed of the results of the preliminary medical examination
Contraindication to the use of heparin (history of heparin-induced thrombocytopenia)
Very high bleeding risk defined by recent bleeding (<6 months) of type 3 of the BARC classification
Subject in an exclusion period (determined by a previous or ongoing study)
Inability to give the subject enlightened information (subject in an emergency situation, difficulties in understanding the subject, etc.)