Comparing shoulder nerve blocks to see effects on diaphragm movement and pain after arthroscopic shoulder surgery
The Effect of Ultrasound Guided Interscalene, Suprascapular and Anterior Glenoid Nerve Blocks on Diaphragmatic Excursion and Analgesia Following Arthroscopic Shoulder Surgery: A Prospective Randomized Controlled Study
We will see if three types of ultrasound-guided nerve blocks (interscalene, suprascapular, and anterior glenoid) reduce pain and change diaphragmatic movement in adults having elective arthroscopic shoulder surgery.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 80 (estimated) |
| Ages | 21 Years to 65 Years |
| Sex | All |
| Sponsor | Tanta University Academic / other |
| Locations | 1 site (Tanta, El-Gharbia) |
| Trial ID | NCT07090733 on ClinicalTrials.gov |
What this trial studies
Adults scheduled for elective arthroscopic shoulder surgery will receive one of four ultrasound-guided regional anesthesia approaches (interscalene brachial plexus block, suprascapular nerve block, anterior glenoid block, or suprascapular plus anterior glenoid block). Diaphragmatic excursion will be measured along with postoperative analgesia outcomes to compare respiratory impact and pain control across groups. Participants are generally healthy adults (ASA I–II) aged 21–65 without COPD, severe obesity, or contraindications to local anesthetics. The trial is conducted at Tanta University with standardized block techniques and postoperative assessments.
Who should consider this trial
Good fit: Ideal candidates are adults aged 21–65 with ASA physical status I–II scheduled for elective arthroscopic shoulder surgery who do not have COPD, pregnancy, BMI > 40, chronic opioid use, coagulation disorders, or local infection at the injection site.
Not a fit: Patients with COPD, morbid obesity (BMI > 40), chronic opioid use, coagulation disorders, local infection at the injection site, or allergy to local anesthetics are excluded and unlikely to benefit from participation.
Why it matters
Potential benefit: If successful, the findings could identify nerve block approaches that provide good pain relief with less impairment of diaphragmatic movement after shoulder arthroscopy.
How similar studies have performed: Previous studies show interscalene blocks give excellent shoulder analgesia but commonly reduce diaphragmatic function, suprascapular blocks provide substantial pain relief with less diaphragmatic effect, and the anterior glenoid block is less well-studied so this head-to-head comparison includes partly novel elements.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age from 21 to 65 years. * Both sexes. * American Society of Anesthesiologists (ASA) physical status I or II. * Scheduled for arthroscopic shoulder surgery. Exclusion Criteria: * Patient's refusal to participate. * Patients with a history of allergy to local anesthetics. * Patients with a history of chronic use of painkillers. * Patients presented with mental dysfunction. * Patients with coagulation disorders. * Patients presented with skin or soft tissue infection at the proposed site of needle Insertion. * Pregnant Patients. * Patients with Chronic Obstructive Pulmonary Disease (COPD) or a Body Mass Index (BMI) of more than 40.
Where this trial is running
Tanta, El-Gharbia
- Tanta University — Tanta, El-Gharbia, Egypt (Recruiting)
Study contacts
- Study coordinator: Fatma E Elsamahy, Master
- Email: Drfatmaelsamahy@gmail.com
- Phone: 00201094082899
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.