Health TrialsbyHealthPanel

Comparative Analgesia and Respiratory Effects of Shoulder Blocks

ConditionsPostoperative PainArthroscopic Shoulder Surgery
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorAtatürk Chest Diseases and Chest Surgery Training and Research Hospital

About this trial

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 criteria

This trial does not accept healthy volunteers

Qualifiers

Patients with ASA scores I-II-III

Patients scheduled for elective arthroscopic shoulder surgery

Patients who have been informed about the study and have given written consent will be included.

Disqualifiers

Those with a known allergy to local anesthetics

Those with an infection at the application site

Those with a severe coagulopathy disorder or anticoagulant use

Those with contralateral phrenic nerve palsy or a serious pulmonary diagnosis

Trial design

Design model

Parallel

Treatments tested in this trial

  • Interscalene block

    Procedure/Surgery

    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

    Procedure/Surgery

    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

    Procedure/Surgery

    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.

Treatment groups

120 Participants
are divided into 3 treatment groups
Group A: Interscalene blockActive comparator 1 intervention
Group B: Anterior suprascapular blockActive comparator 1 intervention
Group C: Pericapsular nerve group (PENG) blockActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Pain scores

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.

Time frame
First hour after the surgery

Secondary outcomes

1

Pain scores

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). Pain assessment will be done at the 1st, 2nd, 6th, 12th, and 24th hours after surgery.

Time frame
First 24 hours after surgery
2

Forced vital capacity (FVC) (volume)

Forced vital capacity (FVC) (volume) will be evaluated during the perioperative period. Measurements will be performed before block administration (baseline), at 30 minutes after the block, and at postoperative 1, 12, and 24 hours.

Time frame
Perioperative period
3

Forced expiratory flow in 1 s (FEV1) (volume)

Forced expiratory flow in 1 s (FEV1) (volume) will be evaluated during the perioperative period. Measurements will be performed before block administration (baseline), at 30 minutes after the block, and at postoperative 1, 12, and 24 hours.

Time frame
Perioperative period
4

FEV1/FVC

FEV1/FVC will be evaluated during the perioperative period. Measurements will be performed before block administration (baseline), at 30 minutes after the block, and at postoperative 1, 12, and 24 hours.

Time frame
Perioperative period

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Atatürk Chest Diseases and Chest Surgery Training and Research Hospital

Lead sponsor

Ankara Etlik City Hospital

Sponsor institution

Source ClinicalTrials.gov
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