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Pulse Wave Transit Time After Infraclavicular Block
Sponsor: Sakarya University
Summary
This prospective observational study aims to evaluate the time-dependent changes in Pulse Wave Transit Time (PWTT) following ultrasound-guided infraclavicular brachial plexus block. PWTT is a non-invasive hemodynamic parameter reflecting vascular tone and sympathetic nervous system activity. Patients undergoing upper extremity surgery under infraclavicular block will be monitored using standard perioperative monitoring devices. PWTT measurements will be obtained before and after block placement at predefined time intervals. Secondary outcomes will include perfusion index, skin temperature, heart rate, blood pressure, respiratory rate, and oxygen saturation. The study seeks to determine whether PWTT can serve as an objective and non-invasive marker of sympathetic blockade following infraclavicular block.
Official title: Time-Dependent Changes in Pulse Wave Transit Time Following Infraclavicular Block: A Non-Invasive Assessment of Sympathetic Blockade
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
OBSERVATIONAL
Enrollment
25
Start Date
2026-07-20
Completion Date
2026-11-15
Last Updated
2026-07-07
Healthy Volunteers
Yes
Conditions
Interventions
Ultrasound-guided infraclavicular brachial plexus block
Ultrasound-guided infraclavicular brachial plexus block will be performed as part of routine clinical anesthesia practice for upper extremity surgery. Local anesthetic will be administered according to standard institutional protocols. No additional or experimental drug or procedure will be applied for research purposes. Pulse Wave Transit Time (PWTT) and other hemodynamic parameters will be recorded before and after block placement at predefined time intervals.
Locations (1)
Sakarya University-Anesthesiology and Reanimation Department
Sakarya, Turkey (Türkiye)