Observational Study of Hand Function After Distal Transradial Access for Angiography — RATATOUILLE  

Nerve Injury Clinical Trial

Official title: RATATOUILLE Study (inteRnATional hAnd funcTiOn stUdy Following dIstaL radiaL accEss)

Status Completed

Clinical Trial Summary

Traditionally, coronary angiograms are performed through the radial artery which is accessed above the palm of the 'right' hand. In recent years, some cardiologists are performing this procedure from the back of the wrist in as the radial artery courses through the anatomical snuffbox (distal radial access). The aim of this study is to determine the prevalence of hand dysfunction following coronary angiography via the distal radial artery.

Clinical Trial Description

In this multi centre observational registry, we will recruit patients undergoing planned invasive coronary angiography. Inclusion criteria include:

1. Age ≥ 18 years.

2. The distal radial artery must be palpable and non-occlusive flow must be confirmed by Doppler ultrasound.

3. Patient should be able to comply with the protocol.

4. Provide written informed consent before study participation.

The primary endpoint is the overall prevalence of hand dysfunction defined as any significant reduction from baseline score in any of the following five domains:

DASH score Levine Katz score VAS score Sensory function Pinch grip strength.

Specifically hand function will be assessed at 4 time points using simple tests of hand strength, sensation and ultrasound to assess the arterial latency. ;

Related Conditions & MeSH terms

• Arterial Occlusive Diseases
• Nerve Injury
• Radial Artery Occlusion

• NCT number: NCT03789279
• Study type: Observational [Patient Registry]
• Source: NHS National Waiting Times Centre Board
• Status: Completed
• Start date: January 1, 2019
• Completion date: December 31, 2020