The Effects of Regional Anaesthesia Techniques on Hemidiaphragm Paralysis, Postoperative Recovery Quality, Opioid Consumption, and Pain Scores

May 6, 2026 updated by: Antalya Training and Research Hospital

Comparion of the Effects of Ultrasound-guided Interscalene Block, Erector Spinae Plane Block, Costoclavicular Block, and Supraclavicular Block on Hemidiaphragm Paralysis, Postoperative Recovery Quality, Opioid Consumption, and Pain Scores in Patients Undergoing Arthroscopic Shoulder Surgery: a Prospective Observational Trial

This study aims to evaluate the effects of ultrasound-guided interscalene, erector spinae plane, costoclavicular, and supraclavicular blocks on hemidiaphragmatic paralysis, postoperative recovery quality, opioid consumption, and pain scores.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Arthroscopic shoulder surgery is a significant approach to diagnosing and treating rotator cuff tears, impingement syndrome, instability, SLAP and Bankart injuries, and other shoulder disorders. Applications of this technique have become increasingly popular in recent yeras. Howeveri although arthroscopic sholuder surgery is conderered minimally invasive, it has been reported to cause moderate to severe postoperative pain, which can hinder patient recovery and rehabilitation, and potentially even extend the hospital stay. Therefore, providing an effective postoperative analgesia strategy in these patients is critical for patient comfort, mobilization, and overall recovery. Various methods are employed to managepostoperative pain in patients undergoing arthroscopic shoulder surgery, with regional techniques being the most prevalent. These regional techniques provide both intraoperative and postoperative analgesia in shoulder surgeries. The aim of this study is to evaluate the effects of ultrasound-guided four block techniques on hemidiaphragmatic paralysis, postoperative recovery quality, opioid consumption, and pain scores.

Study Type

Observational

Enrollment (Estimated)

88

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Turkey (Türkiye)
    • Muratpaşa
      • Antalya, Muratpaşa, Turkey (Türkiye)
        • Recruiting
        • University of Health Sciences, Antalya Training and Research Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

It is planned to include ASA score I-III, aged 18-65 years, who are planned to undergo elective arthroscopic surgery

Description

Inclusion Criteria:

  • aged 18-65 years
  • American Society of Anaesthesiology (ASA) score I-III
  • body mass index (BMI) <30kg/m2
  • scheduled for elective arthroscopic surgery

Exclusion Criteria:

  • ASA score ≥4
  • BMI ≥30 kg/m2
  • declining to give written informed consent
  • controendications for block application
  • history of mental or neurological disease, severe liver and/or kidney disease
  • history of moderate or severe pulmonary disease
  • abnormal preoperative chest X-ray findings
  • scheduled for emergency surgery

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
İnterscalene group
Before the surgery, ultrasoud-guided interscalene block will be performed
Other: İnterscalene block group
Before the surgery, ultrasoud-guided interscalene block will be performed before the surgery under standart anaesthesia monitoring
Erector spinae plane block group
Before the surgery, ultrasoud-guided erector spinae plane block will be performed
Other: Erector spinae plane block group
Before the surgery, ultrasoud-guided erector spinae plane block will be performed before the surgery under standart anaesthesia monitoring
Costoclavicular block group
Before the surgery, ultrasoud-guided costoclavicular block will be performed
Other: Costoclavicular block group
Before the surgery, ultrasoud-guided costoclavicular block will be performed before the surgery under standart anaesthesia monitoring
Supraclavicular block group
Before the surgery, ultrasoud-guided supraclavicular block will be performed
Other: Supraclavivular block group
Before the surgery, ultrasoud-guided supraclavivular block will be performed before the surgery under standart anaesthesia monitoring

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Hemidiaphragmatic paralysis
Time Frame: 30 minutes
Diaghragmatic excursion will be assessed using a real-time M-mode ultrasound during quite breathing, deep breathing, and sniffing maneuvers (deep breathing through the nose)
30 minutes

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Recovery quality
Time Frame: 5 minutes
The postoperative recovery of patients will be assessed using the 15-item Quality of Recovery (QOR-15) score. The QOR-15 is an 15-item assessment scale that evaluates patients' pain, physical comfort, physical independence, psychological support and emotional state in early postoperative period.
5 minutes
Postoperative analgesic consumption
Time Frame: 24 hours
All patients will receive a standard patient analgesia (PCA) protocol. The postoperative opioid consumption will only be recorded
24 hours
Postoperative pain intensity
Time Frame: 24 hours
The postoperative pain intensity will be assessed with the Numerical Rating Scale (NRS) score (0=no pain; 10=most severe pain)
24 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Antalya Training and Research Hospital

Investigators

  • Principal Investigator: Arzu Karaveli, University of Health Sciences, Antalya Training and Research Hospital
  • Principal Investigator: Bayram Akdag, University of Health Sciences, Antalya Training and Research Hospital
  • Principal Investigator: Fatih Duygun, University of Health Sciences, Antalya Training and Research Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 21, 2026

Primary Completion (Estimated)

October 21, 2026

Study Completion (Estimated)

November 21, 2026

Study Registration Dates

First Submitted

April 21, 2026

First Submitted That Met QC Criteria

April 21, 2026

First Posted (Actual)

April 28, 2026

Study Record Updates

Last Update Posted (Actual)

May 11, 2026

Last Update Submitted That Met QC Criteria

May 6, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 4/21

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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