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

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.

NCT Number	NCT07400627
Lead Sponsor	Diskapi Teaching and Research Hospital
Conditions	Cardiac Surgery in Adult Patient, Cardiac Surgery, Radial Artery Cannulation, Arterial Cannulation, Radial Artery Catheterization
Enrollment	242 participants
Start Date	2026-03-01
Primary Completion	2026-09-01 (estimated)
Study Completion	2026-09-30 (estimated)
Updated on ClinicalTrials.gov	2026-02-10