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US Guidance for Radial Arterial Puncture in Shock

NCT07362628 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2026-01-23

No results posted yet for this study

Summary

Doctors in the emergency department often need to take blood samples from an artery to understand how well a patient is breathing and how the body is responding to serious illness. This is usually done by inserting a needle into an artery at the wrist. In patients with shock, this procedure can be difficult because blood pressure is low and the pulse may be hard to feel.

In this study, two different methods for obtaining arterial blood samples were compared in adult patients presenting to the emergency department with shock. In one group, the radial artery puncture was performed with ultrasound guidance, allowing direct visualization of the artery. In the other group, the procedure was carried out using the conventional palpation technique based on manual detection of the pulse.

Patients were randomly assigned to one of the two techniques. The study assessed the success of the procedure on the first attempt, the total number of attempts required, the time needed to obtain a successful sample, and whether puncture of the femoral artery was required when radial access could not be achieved.

The aim of the study was to evaluate whether the use of ultrasound improves the efficiency and success of radial artery blood sampling in patients with shock treated in the emergency department.

Conditions

  • Shock
  • Shock Circulatory

Interventions

PROCEDURE

Ultrasound-guided radial arterial puncture for arterial blood gas sampling

Radial artery puncture for arterial blood gas sampling performed under real-time ultrasound guidance. The artery is visualized on the screen and the needle is advanced under direct visualization until arterial blood flow is obtained.

PROCEDURE

Conventional radial artery puncture for arterial blood gas sampling

Radial artery puncture for arterial blood gas sampling performed using the conventional palpation technique. The artery is identified by manual palpation and the needle is advanced until arterial blood flow is obtained.

Sponsors & Collaborators

  • Ismail Erkan Aydin

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-10-01
Primary Completion
2025-03-31
Completion
2025-03-31

Countries

  • Turkey (Türkiye)

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07362628 on ClinicalTrials.gov