Sensory Distribution and Postoperative Analgesia of Ultrasound-Guided Interfascial Plane Blocks i… (NCT07252063) | Clinical Trial Compass
CompletedNot Applicable
Sensory Distribution and Postoperative Analgesia of Ultrasound-Guided Interfascial Plane Blocks in Living Liver Donors
Turkey (Türkiye)30 participantsStarted 2025-11-01
Plain-language summary
Living liver donor hepatectomy at our institution routinely includes ultrasound-guided interfascial plane blocks as part of postoperative analgesia. Although these blocks have become increasingly used in donor hepatectomy, their cutaneous sensory distributions and block-related dermatomal coverage have not been systematically evaluated, with only anecdotal reports available in the literature.
This prospective observational study aims to assess both the sensory blockade patterns and the early postoperative analgesic performance of interfascial plane blocks administered to living liver donors. Following surgery, all consenting donors receive the institution's standard block protocol. Cutaneous sensory mapping is performed in the post-anesthesia care unit (PACU) at the second postoperative hour. Pain intensity and analgesic requirements within the first 24 hours are also recorded.
The study is designed to provide objective data on the dermatomal coverage and postoperative analgesic effects of contemporary ultrasound-guided interfascial plane blocks used in living liver donor surgery.
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:
* Adult living liver donors undergoing elective donor hepatectomy
* Age 18 to 65 years
* ASA physical status I-II
* Patients who have received ultrasound-guided interfascial plane blocks as part of their postoperative analgesia
* Ability to cooperate with postoperative sensory mapping procedures
* Patients who agree to participate and provide written informed consent
Exclusion Criteria:
* Patients who refuse to participate or do not provide written informed consent
* Patients who have not received any ultrasound-guided interfascial plane block
* ASA physical status \> II
* Presence of surgical incisions or wound complications preventing reliable sensory mapping
* Prior major abdominal surgery that may alter cutaneous innervation patterns
* Cognitive impairment limiting the ability to cooperate with sensory testing
* Known psychiatric disorders (e.g., major depression, mania, schizophrenia) that may interfere with postoperative assessment
* Local infection, skin disease, or dermatologic condition preventing accurate cutaneous mapping
* Allergy or contraindication to local anesthetics used in the block
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
Cutaneous sensory block area mapping for different regional anesthesia techniques in liver donor surgery
Timeframe: At 120 minutes after block administration in the post-anesthesia care unit (PACU).