NCT07429669

Comparative Analgesia and Respiratory Effects of Shoulder Blocks

Analgesic Efficacy and Respiratory Effects of Interscalene, Anterior Suprascapular, and Pericapsular Nerve Group Blocks in Shoulder Arthroscopy

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 120 (estimated)
• Sponsor: Atatürk Chest Diseases and Chest Surgery Training and Research Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

Interscalene block is widely accepted as the gold-standard regional analgesic technique for pain control after arthroscopic shoulder surgery. However, because this block is performed at the level of the brachial plexus roots, it may be associated with adverse effects such as phrenic nerve blockade and subsequent diaphragmatic dysfunction. These limitations have prompted the search for alternative regional anesthesia techniques that can provide effective postoperative analgesia while preserving respiratory function. The anterior suprascapular block, which covers a broad dermatomal distribution of the shoulder region, has been shown in some studies to provide sufficient analgesia as a standalone technique. In addition, the pericapsular nerve group (PENG) block of the shoulder-applied around the anterior capsule and performed at a distance from critical neurovascular structures that may lead to serious complications-may represent another potential analgesic option following arthroscopic shoulder procedures. Therefore, this study aims to evaluate alternative regional block techniques in comparison with the interscalene block and to contribute to the identification of an optimal analgesic strategy after arthroscopic shoulder surgery.

Conditions

• Postoperative Pain
• Arthroscopic Shoulder Surgery

Interventions

Type	Name	Description
PROCEDURE	Interscalene block	Interscalene block will be performed, under US guidance, before the surgical operation, and when the patient is placed in the supine position.
PROCEDURE	Anterior suprascapular block	Anterior suprascapular block will be performed, under US guidance, before the surgical operation, and when the patient is placed in the supine position.
PROCEDURE	Pericapsular nerve group (PENG) block	Pericapsular nerve group (PENG) block will be performed, under US guidance, before the surgical operation, and when the patient is placed in the supine position.

Timeline

• Start date: 2026-02-23
• Primary completion: 2026-11-10
• Completion: 2026-11-30
• First posted: 2026-02-24
• Last updated: 2026-02-24

Locations

1 site across 1 country: Turkey (Türkiye)