Perfusion Index and End Diastolic Velocity Ratios as Predictors of Supraclavicular Block Success in Vascular Access Surgery

This is a prospective observational study investigating the correlation between Perfusion Index (PI) ratio and End Diastolic Velocity (EDV) ratio as early predictors of successful supraclavicular brachial plexus block (SCBPB) in patients undergoing superficialization surgery of the upper limb.

NCT Number	NCT07197281
Lead Sponsor	Assiut University
Conditions	End Diastolic Velocity, Perfusion Index
Enrollment	50 participants
Start Date	2026-05-01
Primary Completion	2027-10-30 (estimated)
Study Completion	2027-12-30 (estimated)
Updated on ClinicalTrials.gov	2025-09-29