Objective: Radial artery occlusion (RAO) is a common complication during transradial coronary intervention. Its incidence is variably reported in literature and its predictors are not completely understood. In this study, we aimed to define the incidence and factors influencing RAO in patients undergoing transradial coronary intervention.
Methods: This was a single-center prospective study (October 2018 to September 2019) that enrolled 1,754 patients who were evaluated for RAO 24 hours after transradial coronary intervention. Univariate as well as multivariate analyses were done to identify patient and procedure related factors predicting the occurrence of RAO.
Results: A total of 1,374 patients (78.3%) underwent angioplasty, whereas 380 (21.7%) underwent angiography alone. RAO was diagnosed in 11.97% patients. Lower glomerular filtration rate, multiple puncture attempts for radial artery access, larger sheath size, complex nature of interventional procedure, longer homeostasis time, and forearm hematoma formation were independent predictors for RAO.
Conclusion: RAO was not an uncommon complication in transradial coronary interventions, especially in the Indian population; and the knowledge of predictors may be helpful in its
prevention.