Clinical trial Recruiting at 1 site Interventional Ages 18 to 60

Comparing two pain relief techniques after thoracoscopic sympathectomy

Official title: Ultrasound-guided Rhomboid Intercostal Block Versus Retrolaminar Block for Postoperative Analgesia After Thoracoscopic Sympathectomy: A Randomized Clinical Trial

Run by Damanhour Teaching Hospital · NCT06653803 · Data updated 2026-11-12

This study is testing which of two pain relief methods works better for adults recovering from surgery to treat sweating and other conditions.

Quick facts

Study typeInterventional
Ages18 Years to 60 Years
SexAll
Enrollment60 (estimated)
SponsorDamanhour Teaching Hospital
Government
Locations1 site (Damanhūr, El-Beheira)
StatusRecruiting
StartedAugust 1, 2026
Main results expectedJanuary 1, 2027
Study endsJanuary 30, 2027
Registry record updatedSeptember 21, 2026
Trial IDNCT06653803 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 to 60 with an ASA physical status of II or less and a BMI under 35 kg/m².

Probably not a fit

Patients who may not benefit from this study include those with severe comorbidities, chronic pain conditions, or contraindications to the analgesia techniques being tested.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial aims to compare the effectiveness of two regional analgesia techniques, Rhomboid Intercostal Block (RIB) and Retrolaminar Block (RLB), for managing postoperative pain in adult patients undergoing thoracoscopic sympathectomy. The study will involve 60 patients who will be randomly assigned to receive either RIB or RLB during their procedure under general anesthesia. The primary focus is to evaluate the impact of these techniques on pain control and overall patient outcomes following surgery.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies for patients undergoing thoracoscopic sympathectomy.

How similar studies have gone: While the specific techniques of RIB and RLB are relatively novel, similar regional analgesia approaches have shown promise in managing postoperative pain in other surgical contexts.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* American Society of Anesthesiologists (ASA) physical status ≤ II
* Age from 18 to 60 years
* Body Mass Index (BMI) \< 35 kg/m²

Exclusion Criteria:

* American Society of Anesthesiologists (ASA) physical status \> II
* Age \< 18 years or \> 60 years
* Body Mass Index (BMI) ≥ 35
* Local infection at the puncture site
* Altered mental status
* Pregnant women
* Allergy to study drugs
* Chronic pain
* Coagulation abnormalities or on anticoagulants
* Severe hepatic or kidney disease

Where it's running

  • Damanhour Teaching Hospital
    Damanhūr, El-Beheira, Egypt
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.