[Incidence and risk factors of acute radial artery occlusion following transradial percutaneous coronary intervention].

Objective: To elucidate the incidence and risk factors of acute radial artery occlusion (RAO) following transradial percutaneous coronary intervention (TRI).

Methods: A total of 7215 patients who underwent TRI were divided into normal group and RAO group, according to whether the patient without and with RAO. Risk factors of RAO were analyzed by logistic regression model.

Results: Acute RAO occurred in 68 patients (0.94%). As compared to the patients in normal group, there were more female and diabetes mellitus patients in RAO group. The dosage of heparin used in the operational procedure in RAO group were significantly less than normal group (3723 IU +/- 556 IU vs 7603 IU +/- 1533 IU, P < 0.01). The post-procedure duration of high-pressure compression hemostasis were longer in RAO patients than normal patients (103.8 min +/- 23.3 min vs 87.7 min +/- 31.2 min, P = 0.02). Logistic regression analyses showed that the dosage of heparin used in the procedure, the category and size of sheath and the post-procedure compression time were independent risk factors for RAO.

Conclusion: The incidence of RAO can be minimized by appropriate anticoagulation, proper sheath selection, and avoiding prolonged duration of high-pressure compression hemostasis following the procedure.