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Published on: September 20, 2020
Radial artery spasm during transradial coronary procedures.
1University Hospital Split, Division of Cardiology, Department of Internal Medicine, Split, Croatia. kristicivica@gmail.com
Radial artery spasm (RAS) affects 14.7% of transradial access (TRA) coronary procedures. Hydrophilic coatings and vasodilators significantly reduce RAS incidence, but optimal prevention strategies require further study.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Access
Background:
- Transradial access (TRA) offers advantages for coronary procedures but is limited by radial artery spasm (RAS).
- RAS remains a significant challenge hindering the widespread adoption of TRA.
- Understanding the prevalence and risk factors of RAS is crucial for improving TRA outcomes.
Purpose of the Study:
- To estimate the prevalence of radial artery spasm (RAS) in patients undergoing transradial coronary procedures.
- To identify potential risk factors associated with RAS.
- To evaluate the effectiveness of preventive measures for RAS.
Main Methods:
- A systematic literature search was conducted to identify relevant studies.
- Nineteen published papers, encompassing 7197 patients, were included in the analysis.
- Data on RAS incidence, risk factors, and preventive strategies were extracted and synthesized.
Main Results:
- The overall reported incidence of RAS was 14.7%.
- RAS incidence varied based on diagnostic criteria, premedication protocols, and sheath/catheter selection.
- Hydrophilic coated sheaths/catheters reduced RAS to 1%; intra-arterial verapamil/nitroglycerin reduced it to 3.8%.
Conclusions:
- Radial artery spasm (RAS) remains a significant complication in transradial access (TRA).
- The use of hydrophilic materials and intra-arterial vasodilators are essential for RAS prevention.
- Further research is needed to establish optimal spasmolytic protocols and validate spasm criteria.
Related Concept Videos
Assessment of radial pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
Assessment of apical radial pulse
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
Arteries of the Upper Limbs
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Cardiac Catheterization II: Right Heart Catheterization
Cardiac Catheterization I: Pre-Procedure Overview

