Comparative Analgesia and Respiratory Effects of Shoulder Blocks

Condition(s) studied

Investigational drug(s) / intervention(s)

Interscalene block: Interscalene block will be performed, under US guidance, before the surgical operation, and when the patient is placed in the supine position.

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.

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.

Study 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.

Eligibility

Primary outcome measure(s)

• Pain scores — First hour after the surgery
  Pain will be assessed at rest and while coughing using the visual analog scale on a scale from 0 (no pain) to 100 (worst pain) at the first postoperative hour.

Trial sites (1)

More Atatürk Chest Diseases and Chest Surgery Training and Research Hospital trials in Turkey

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