Abstract
Transradial catheterization is the predominant access site for coronary catheterization and percutaneous coronary interventions (PCI). Previous studies have reported a high incidence of radial artery (RA) injury. The aim of this investigation was to evaluate the incidence of RA injury using last generation optical coherence tomography (OCT) intravascular imaging in a serial manner. 100 patients with a diagnosis of non-ST-elevation myocardial infarction (nSTEMI) treated by PCI were enrolled. OCT of RA was performed immediately after the index PCI. OCT was repeated 9 months later. There were 11 patients with RA injuries (11.0%) at baseline, including 3 patients with RA medial dissection and 8 patients with intimal tears. In the follow-up OCT data, the number of RA injuries was 10 (10.0%), including 7 patients with RA medial dissection and 3 patients with intimal tear. All injuries were clinically asymptomatic and there was no finding of vessel perforation. There was no significant difference between the baseline and follow-up procedure in terms of number of injuries. The study showed no significant difference between baseline and follow-up RA injury incidence. There was a higher risk of radial injury for repeated catheterization in women. The conclusion is that radial catheterization is a very safe procedure in terms of radial artery damage. This is evidenced by considerably fewer injuries compared to published studies. The use of the short radial sheath (7 cm in this study) is protective and reduces the incidence of radial injury.
Highlights
Transradial catheterization (TRC) has become increasingly popular in the interventional cardiology community in the last decade
In the baseline optical coherence tomography (OCT) records, we found overall 11 radial artery (RA) injuries (11.0%), consisting of 3 patients with RA medial dissection and 8 with intimal tears
In the follow-up OCT data, we found 10 RA injuries (10.0%), consisting of 7 patients with RA medial dissection and 3 patients with intimal tear
Summary
Transradial catheterization (TRC) has become increasingly popular in the interventional cardiology community in the last decade. After more than two decades, the rate of transradial access (TRA) for percutaneous coronary interventions (PCI) is shown to be considerably higher than transfemoral access in many centers. Previous studies have reported a high incidence of radial artery (RA) injury. In the follow-up OCT data, the number of RA injuries was 10 (10.0%), including 7 patients with RA medial dissection and 3 patients with intimal tear. There was no significant difference between the baseline and follow-up procedure in terms of number of injuries. The study showed no significant difference between baseline and follow-up RA injury incidence. The conclusion is that radial catheterization is a very safe procedure in terms of radial artery damage. This is evidenced by considerably fewer injuries compared to published studies. The use of the short radial sheath (7 cm in this study) is protective and reduces the incidence of radial injury
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