The Relationship Between Radial Artery Stenosis and Whole Blood Viscosity After Transradial Coronary Angiography

DOI: 10.5830/CVJA-2024-010

Abstract

Background: The transradial approach (TRA) is preferred for coronary procedures due to improved outcomes and lower complication rates. However, complications like radial artery stenosis (RAS) and occlusion (RAO) post-TRA require investigation. This study aims to explore the link between whole blood viscosity (WBV) and RAS/RAO after TRA coronary angiography.

Methods: Retrospective analysis of 215 TRA coronary angiography patients was conducted. Doppler ultrasonography assessed RAS/RAO one month post-procedure. WBV, calculated from hematocrit (HCT) and total plasma protein (TP), was evaluated at low (LSR) and high (HSR) shear rates.

Results: RAS/RAO incidence was 15.3%, with 7.4% experiencing RAO. Patients with RAS/RAO showed significantly elevated HSR, LSR, and total protein levels, with lower blood urea nitrogen. Multivariable analysis identified BMI, HSR, and LSR as independent RAS/RAO predictors .

Discussion: This study establishes WBV association with RAS/RAO after TRA, suggesting WBV as a potential predictor and aiding pre-TRA risk assessment for alternative angiography routes.