Radial Artery Access

Radial Artery Access: Demographic Factors Impacting Radial Artery Diameter

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT05768412

Acronym

RADIAL

Enrollment

Registered

2023-03-14

Start date

2023-05-04

Completion date

2025-10-01

Last updated

2025-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Radiology, Interventional

Keywords

specialty; RADIOGRAPHY, INTERVENTIONAL is available for the diagnostic and therapeutic procedures

Brief summary

This is an imaging investigation to assess the factors effecting radial artery diameter: * Patient demographics * Diameter change post standard care preparation

Detailed description

There are significant benefits to radial access intervention, namely superior mortality and morbidity Vs femoral access. In addition, there is significant patient preference and reduced nursing time post procedure in comparison to femoral access supporting day case practice. Interventional oncology routinely involves repeated procedures therefore patient preference is a key factor in access choice. This again supports day case practice with significant patient preference also noted. The clinical application of the study is to allow a broader spectrum of procedures to be performed via radial access. Currently due to a limited data available on factors effecting radial artery diameter practice there is a restriction on sheath size use. This limits the procedures that can be performed via this route. By assessing the diameter and factors which increase the vessel, larger access sheaths can be used opening up the procedure portfolio including neuro-interventional procedures and coeliac axis stenting. This will allow these procedures to be performed with added benefits of improved mortality/morbidity in addition patient preference.

Interventions

PROCEDURERadial Artery Access

The radial artery is stabilized between the thumb and forefinger of the left hand and 1 to 2 mL of subcutaneous lidocaine is used to create a wheal over the zone of planned entry.

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

1. Aged 18 or over 2. All patients undergoing Radial Artery Access requiring interventional radiology.

Exclusion criteria

1. Prior history of radial artery occlusion 2. Prior history of stroke 3. Need for future dialysis access creation or preservation of upper extremity vasculature for patients with chronic kidney disease

Design outcomes

Primary

Measure	Time frame	Description
Radial Artery diameter	Before the procedure, during the procedure, and immediately after the procedure	The change in RA diameter during a standard of care RA access procedure performed by an interventional Radiologist before the procedure, during the procedure and immediately after the procedure and how this compares to patient demographics.

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026