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Serratus Posterior Superior Intercostal Plane Block Versus Suprascapular Nerve Block and Axillary Nerve Block for Analgesia in Shoulder Arthroscopic Surgery

Serratus Posterior Superior Intercostal Plane Block Versus Suprascapular Nerve Block and Axillary Nerve Block for Analgesia in Shoulder Arthroscopic Surgery: A Randomized Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06997601
Enrollment
50
Registered
2025-05-30
Start date
2025-05-31
Completion date
2025-11-01
Last updated
2025-11-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Analgesia, Axillary Nerve Block, Serratus Posterior Superior Intercostal Plane Block, Shoulder Arthroscopic Surgery, Suprascapular Nerve Block

Brief summary

This study aims to compare the serratus posterior superior intercostal plane block and suprascapular nerve block and axillary nerve block for analgesia in shoulder arthroscopic surgery.

Detailed description

Controlling postoperative pain while minimizing opioid administration is particularly important because poor pain control is thought to be responsible for more than 60% of unplanned or prolonged hospitalizations. Suprascapular nerve block (SSNB) has been proposed based on the anatomic fact that the suprascapular nerve innervates approximately 70% of the shoulder joint, capsule, subacromial space, acromioclavicular joint, and coracoacromial ligament, with the remaining 30% thought to be innervated by the lateral pectoral and axillary nerve. The combined SSNB and axillary nerve block (ANB) was proposed as a safe alternative to interscalene brachial plexus block (ISB) for providing anesthesia and postoperative analgesia for shoulder surgery. Serratus posterior superior intercostal plane block (SPSIPB) was described as a novel technique in a case series study of cadavers and five patients.

Interventions

OTHERSerratus posterior superior intercostal plane block

Patients will receive a serratus posterior superior intercostal plane block.

OTHERSuprascapular nerve block + Axillary nerve block

Patients will receive suprascapular nerve block + axillary nerve block.

Sponsors

Tanta University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age from 18 to 65 years. * Both sexes. * American Society of Anesthesiology (ASA) physical status I-II. * Scheduled for open thoracotomy.

Exclusion criteria

* Infection at the site of regional blocks. * Allergy to any drug used in this study. * Use of psychotropic and/or narcotic medications on a regular basis. * Cognitive dysfunction. * Cardiovascular disease. * Pulmonary disease. * Coagulation abnormalities. * Anatomical abnormalities. * Neuropathic pain. * Body mass index \>40. * History of substance abuse. * Previous surgery in the same shoulder.

Design outcomes

Primary

MeasureTime frameDescription
Time to the 1st rescue analgesia24 hours postoperativelyTime to the first request for the rescue analgesia (time from end of surgery to first dose of morphine administered).

Secondary

MeasureTime frameDescription
Degree of pain24 hours postoperativelyEach patient will be instructed about postoperative pain assessment with the numeric rating scale (NRS) score. NRS (0 represents no pain while 10 represents the worst pain imaginable). NRS will be assessed at 0, 2, 4, 6, 8, 12, 18, and 24 h postoperatively.
Intraoperative fentanyl consumptionIntraoperativelyAdditional fentanyl bolus dosages of 1 µg/kg IV will be administered if the heart rate or mean arterial blood pressure is elevated by more than 20% of the baseline.
Total morphine consumption24 hours postoperativelyRescue analgesia of morphine will be given as 3 mg bolus if the numeric rating scale (NRS)\> 3 to be repeated after 30 min if pain persists until the NRS \< 4.
Incidence of adverse events24 hours postoperativelyIncidence of adverse events such as bradycardia, hypotension, nausea, vomiting, respiratory depression, or any other complication.

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026