Shoulder Pericapsular Block Versus Interscalene Block in Arthroscopic Shoulder Surgery

Starting soon · Not applicable

Conditions studied: Hemidiaphragmatic Paralysis

In brief

This randomized controlled trial aims to compare the incidence of hemidiaphragmatic paralysis (HDP) following ultrasound-guided interscalene block (ISB) versus shoulder pericapsular nerve group (PENG) block in patients undergoing elective shoulder surgery under general anesthesia. The primary objective is to determine whether the shoulder PENG block reduces the incidence of HDP compared with conventional intrafascial ISB. HDP will be assessed using ultrasound measurement of diaphragmatic excursion 30 minutes after block performance

Key facts

Study ID

NCT07486349

Run by

Marmara University

People needed

70

Starts

2026-04-01

Expected to finish

2026-12-01

Last updated by the study team

2026-03-20

Who can join

Age: 18 and older, up to 75. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• ASA physical status I-III
• Scheduled for elective shoulder surgery under general anesthesia
• Able to provide informed consent

You may not qualify if…

• Pre-existing diaphragmatic dysfunction
• Severe COPD or restrictive pulmonary disease
• Neuromuscular disorders
• BMI > 40 kg/m²
• Coagulopathy
• Infection at injection site
• Allergy to local anesthetics
• Inability to undergo diaphragmatic ultrasound assessment

Full record on ClinicalTrials.gov

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