Efficacy of Ultrasound-Guided Distal Radial Artery Catheterization versus Radial Artery Catheterization in Prone Position Surgery and the Effects on Intraoperative Arterial Pressure Waveforms: a randomised controlled trial.

Efficacy of Ultrasound-Guided Distal Radial Artery Catheterization versus Radial Artery Catheterization in Prone Position Surgery and the Effects on Intraoperative Arterial Pressure Waveforms: a randomised controlled trial. - Efficacy of Ultrasound-Guided Distal Radial Artery Catheterization versus Radial Artery Catheterization in Prone Position Surgery and the Effects on Intraoperative Arterial Pressure Waveforms: a randomised controlled trial.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059529

Enrollment

120

Registered

2025-10-24

Start date

2025-11-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Prone Position Surgery

Interventions

Insertion of arterial line from distal radial artery Insertion of arterial line from radial artery

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients aged 15 years or older undergoing scheduled surgery in the prone position who require invasive arterial pressure monitoring

Exclusion criteria

Exclusion criteria: Patients with signs of infection at the puncture site. Patients with coagulopathy. Patients with a history of peripheral arterial disease. Patients undergoing surgery in which intraoperative observation of the insertion site is anticipated to be difficult.

Design outcomes

Primary

Measure	Time frame
rate of intraoperative arterial pressure waveform damping	—

Secondary

Measure	Time frame
First-attempt success rate Number of attempts until successful puncture Time required for successful puncture Time to catheter fixation Incidence of posterior wall puncture Ultrasound assessment: Diameter of the target artery Depth from skin to the artery Cross-sectional area	—

Countries

Japan

Contacts

Public ContactTaiji Okamoto

Keio University School of Medicine department of anesthesiology

taijiokamoto0904@gmail.com03-3353-1211

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026