Related Experiment Video
Updated: Sep 20, 2026

A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology
Published on: February 7, 2015
[Doppler ultrasound imaging of the radial artery after catheterization]
1Hôpital du Val-de-Grâce, service de cardiologie, 74, boulevard de Port-Royal, 75230 Paris, France.
Insights
Transradial coronary angiography and angioplasty have minimal vascular risk. Radial artery occlusion is rare and typically without clinical consequence after these procedures.
Area of Science:
- Cardiology
- Vascular Surgery
- Interventional Radiology
Background:
- Transradial access for coronary procedures is increasingly common.
- Vascular complications, specifically radial artery occlusion, are a concern.
- The incidence and clinical impact of radial artery occlusion post-procedure are not well-established.
Purpose of the Study:
- To prospectively evaluate the incidence and consequences of radial artery occlusion after transradial coronary angiography and angioplasty.
- To assess the clinical significance of radial artery occlusion in patients undergoing these procedures.
Main Methods:
- A prospective study involving 300 patients with a positive Allen test.
- Radial artery patency assessed via physical and ultrasound examinations.
- Evaluations conducted before, at discharge, and at 3-month follow-up.
Main Results:
- Radial artery occlusion rate was 1.3% at discharge.
- Occlusion rate decreased to less than 1% at 3-month follow-up.
- No ischemic complications or significant changes in radial artery diameter or flow were observed.
Conclusions:
- The risk of radial artery occlusion following transradial coronary procedures is minor.
- Radial artery occlusion in this context appears to be clinically inconsequential.
Abstract:
Coronarography and coronary angioplasty via radial artery is associated with a minimal vascular risk. Nevertheless, the incidence of radial occlusion and its consequences are little known. In a prospective study, 300 patients with a positive Allen test were evaluated on patency of the radial artery after a coronarography or an angioplasty, by physical and ultrasound examination before, at discharge and after. At discharge, occlusion rate was 1.3%, and at 3 months follow-up, this rate was less than 1%. In this study, we didn't find any ischemic complication and any diameter or flow variations before and after transradial approach. In conclusion, radial artery occlusion risk is minor and without clinical consequence.
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:
Assessing Blood pressure using a doppler ultrasound
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Imaging Studies VII: Vascular Imaging
Arteries of the Upper Limbs

