Vascular outcomes of early deflation of radial artery band following coronary angiography: A controlled clinical trial.

The present study aimed to investigate the effect of early deflation of the transradial (TR) band on the vascular outcomes of patients who have undergone coronary angiography through transradial access (TRA). The present controlled clinical trial included all patients who had undergone elective coronary angiography through TRA. The participants (n=70) met the inclusion criteria and were selected using convenient sampling. Then, they were randomly assigned to the intervention and control groups, using block randomization. Data collection tools included a questionnaire on demographic and related clinical data, including the history of diabetes, hypertension, hypercholesterolemia, heart failure and vascular disease, and the checklist of post-angiographic complications, including duration of the procedure, systolic and diastolic blood pressures measured before and after the procedure, and assessments of radial artery occlusion (RAO), hematoma and pain. The intervention group had their TR band on the artery for 1.5 hours after the procedure. Then, the cuff of the band was deflated at a speed of 5 cc every 15 minutes, using a syringe. However, the TR band was kept in place for 2 hours in the control group, followed by the deflation with the same speed. The pressure application time was recorded in both groups from the removal of sheaths until complete hemostasis. The patients with early deflation of the TR band experienced less pain compared to those with typical deflation (P=0.003). However, the variables of hematoma development (P=0.062) and RAO (P=0.371) were not significantly different between the patients with typical and early deflation of the TR band. The present study concluded that the patients with early deflation of the TR band experienced less pain compared to those with typical deflation. Therefore, deflating the TR band after cardiac angiography at 1,5 hours has similar efficacy and safety compare to 2 hours and associated with less reported pain score.