Evaluation of Supraclavicular Brachial Plexus Blocks at Various Volumes: Impact on Optic Nerve Sh… (NCT06428461) | Clinical Trial Compass
CompletedNot Applicable
Evaluation of Supraclavicular Brachial Plexus Blocks at Various Volumes: Impact on Optic Nerve Sheath Diameter
Turkey (Türkiye)64 participantsStarted 2024-05-20
Plain-language summary
This study aimed to evaluate the anesthesia adequacy, side effects, and complication rates, as well as the postoperative pain relief effectiveness of supraclavicular brachial plexus blocks administered at different volumes under ultrasound guidance. Additionally, the investigators utilized ultrasound to measure optic nerve sheath diameters and investigated their relationship with intracranial pressure across varying block volumes.
Who can participate
Age range
18 Years – 50 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:
* Patients aged between 18 and 50, of both genders, with planned surgery on the finger, wrist, elbow joint, and distal region, and classified as ASA I-II, will be included in the study. In this study, patients will be informed about the anesthesia method and the tests to be conducted, and those who consent will be asked to sign an informed consent form as voluntary participants.
Exclusion Criteria:
* Patients who do not accept the procedures and tests
* Those with diseases that may cause increased intracranial pressure
* Patients with severe heart failure
* Patients with second or third degree atrioventricular block
* Patients with unstable angina history
* Patients with COPD and chronic asthma
* Patients with a history of myocardial infarction (MI) within the last 6 weeks
* Patients with a heart rate below 50 beats/min
* Patients with systolic blood pressure below 90 mmHg
* Patients with liver failure
* Patients with kidney failure
* Patients for whom supraclavicular block anatomically cannot be performed
* Those with neurological or psychological diseases that make it difficult to assess the tests
* Patients allergic to any of the study drugs
* Pregnant women
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
1
Optic nerve sheath diameter measured by ultrasonography
Timeframe: Before block, After block 20 minutes, After block 60 minutes