Direct vs. Seldinger Technique for Ultrasound-Guided Difficult Radial Access in Cardiac Surgery

NCT07400627 · tracked via the Priya Life Science Turkey tracker

Sponsor

Diskapi Teaching and Research Hospital

Phase

Not applicable

Started

2026-03-01

Last updated

2026-02-10

Condition(s) studied

Cardiac Surgery in Adult PatientCardiac SurgeryRadial Artery CannulationArterial CannulationRadial Artery Catheterization

Investigational drug(s) / intervention(s)

Ultrasound-Guided Direct Cannulation TechniqueUltrasound-Guided Seldinger Cannulation Technique

Ultrasound-Guided Direct Cannulation Technique: Radial artery cannulation performed using the direct puncture technique (catheter-over-needle) under real-time ultrasound guidance.

Ultrasound-Guided Seldinger Cannulation Technique: Radial artery cannulation performed using the Seldinger technique (catheter-over-guide-wire) under real-time ultrasound guidance.

Study summary

Radial artery cannulation is a routine procedure for invasive hemodynamic monitoring for patients undergoing cardiovascular surgery patients.

Although ultrasound (USG) guidance is known to improve success rates, there is limited data comparing the efficacy of the 'Direct' versus 'Seldinger' techniques specifically in patients with anticipated difficult radial access.

This study aims to compare the effectiveness of USG-guided Direct cannulation and USG-guided Seldinger techniques in adult patients with anticipated difficult radial arterial cannulation.

Eligibility

Sex

ALL

Min age

18 Years

Max age

—

Healthy volunteers

Inclusion Criteria: * Patients aged 18 years or older * American Society of Anesthesiologists (ASA) physical status I-IV * Patients scheduled for cardiovascular surgery requiring invasive arterial monitoring Exclusion Criteria: * Patients undergoing emergency surgery * Coagulation disorders or known coagulopathy * Presence of an arteriovenous fistula * Patients in shock or hemodynamically instable * Patients requiring mechanical circulatory support * History of Raynaud's phenomenon * Refusal to participate in the study

Primary outcome measure(s)

First-Attempt Cannulation Success Rate — 10 min before anesthesia induction
The proportion of patients in whom radial artery cannulation is successfully performed (verified by the appearance of the arterial pressure waveform on the monitor) with a single skin puncture

Trial sites (1)

Facility	City	Region	Status
Ankara Etlik City Hospital	Ankara	Turkey (Türkiye)

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07400627 on ClinicalTrials.gov ↗ ← All trials in Turkey