Evaluation of Radial Artery Patency after Transradial Catheterization

ABSTRACTBackgroundAlthough the transradial approach has reduced vascular complications, radial artery occlusion is still considered one of its limitations. The aim of this study was to evaluate radial artery patency after transradial cardiac catheterization.MethodsProspective cohort study of patients undergoing cardiac catheterization using the transradial approach. Procedures were performed with 5F and 6F catheters with the administration of 5,000IU of heparin and 200μg of nitroglycerin through the radial sheath. Radial artery blood flow was assessed by Doppler before, immediately after bandage removal and 7 days after the procedure.ResultsThe study included 120 patients of which 42.5% were males, with 59.1±10.6years of age, 25.8% were diabetic, weighing 77.4±14.2kg and height of 166±8.1cm. The number of catheters used was 2.3±0.5 per patient, 55.8% using 6F sheaths. The duration of the procedure was 14.8±5.2minutes, the puncture time was 129.7±124.1seconds, and the fluoroscopy time was 4±2.3minutes. Radial spasm and crossover to the femoral technique occurred in 20.8% and 1.7% of the procedures, respectively. Significant hematoma was observed in 2.4% of the patients. At 1 week of follow-up, arterial occlusion was observed in 1.7%, and reduced blood flow in 26.7% of the patients.ConclusionsRadial artery occlusion following diagnostic procedure using the transradial approach is rare and should not be considered as an important technique limitation