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Diaphragm Sparing Effect of Subomohyoid Block With Infraclavicular or Subscapularis Blocks in Comparison With Interscalen Block for Postoperative Analgesia in Shoulder Surgeries

NCT05920421 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 87

Last updated 2026-01-02

No results posted yet for this study

Summary

The gold standard for shoulder analgesia is the interscalene block (ISB), but it has its own share of disadvantages such as phrenic nerve block, recurrent laryngeal nerve involvement and Horner's syndrome may lead to patient discomfort .Others, such as intrathecal spread and systemic toxicity of local anesthetic, can have serious consequences.

Phrenic nerve injury is a common complication with regional anesthesia. Its either temporary with Transient Phrenic Nerve Palsy leading to hemidiaphragmatic paresis after interscalene block or other injections of local anesthetic in the neck .

Although studies of ISB have shown a reduction in the incidence in hemidiaphragmatic paralysis with low-volume ISB, the risk of phrenic paralysis is not completely eliminated.

To bypass this complication, distal block of the shoulder innervation is recommended such as subomohyoid infraclavicular and subomohyoid subscapularis blocks.

Conditions

  • Shoulder Surgeries Operations

Interventions

PROCEDURE

diaghragm affection by ultrasound before and after the blocks

the participant will assess diaphragm sparing in each block and evaluate effectiveness of infraclavicular subomohyoid blocks and subomohyoid subscapularis blocks according to intraoperative and postoperative analgesia and diaphragm affection and comparing them with interscalen and with each others

Sponsors & Collaborators

  • Zagazig University

    lead OTHER_GOV

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-07-20
Primary Completion
2023-12-20
Completion
2024-12-30

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05920421 on ClinicalTrials.gov