CompletedNot Applicable

Comparison of Sympathetic Blockade Duration in Brachial Plexus Blocks Performed by Different Methods

Turkey (Türkiye)200 participantsStarted 2023-03-01

Plain-language summary

This prospective comparative study will evaluate the sympathetic effects of ultrasound-guided infraclavicular versus supraclavicular brachial plexus blocks in adults undergoing upper-extremity surgery. Sympathetic tone will be monitored noninvasively with simultaneous bilateral measurements of perfusion index (pulse-oximetry-derived) and skin temperature obtained at baseline and at predefined post-block intervals until return to baseline. The primary outcome is the duration of sympathetic block. Secondary outcomes are between-approach differences in the time course of perfusion index and skin temperature, and the incidence and magnitude of rebound sympathetic activity.

Who can participate

Age range

18 Years – 65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * 18 to 65 year old * ASA I-II * Patients scheduled for upper extremity surgery * Fully oriented and able to cooperate * Patients who signed the informed consent form and gave consent to participate in the study Exclusion Criteria: * ASA III-IV-V * Non-cooperation * Disease that interferes with sensory block assessment * Known allergy to the medicines to be used * Pregnant patients * Coagulopathy or thrombocytopenia * Patients with anatomical abnormalities or active infection at the points of application

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Difference in duration of sympathetic blockade after different US-guided brachial plexus blocks

Timeframe: Twenty-four hours after nerve blockage

Trial details

NCT IDNCT07326436

SponsorBozyaka Training and Research Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2023-09-01

View on ClinicalTrials.gov More Anesthesia, Conduction trials