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Enrolling by invitation NCT07209995

Ultrasound Guided Retroclavicular Infraclavicular Versus Axillary Block as Regional Anesthesia in Obese Patients

No phase Interventional Achievement of High-quality Analgesia in Elbow Surgeries

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: retroclavicular infraclavicular brachial plexus block for, axillary block.
Who it may be relevant to
Registry conditions: Achievement of High-quality Analgesia in Elbow Surgeries. Basic parameters: 21 years — 45 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Egypt
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Ultrasound Guided Retroclavicular Infraclavicular Versus Axillary Block as Regional Anesthesia in Obese Patients Undergoing Around and Below Elbow Surgeries: A Randomized Clinical Study

Overview

The purpose of this study is to compare the analgesic outcomes (time to first analgesic request, total amount of analgesic consumption, and pain scores) following the ultrasound-guided retroclavicular infraclavicular approach and the axillary approach in obese patients.

Interventions

  • Other retroclavicular infraclavicular brachial plexus block for
    The patient will be placed supine, head facing the contralateral side. A high- frequency 13-6 MHz linear array transducer probe will be placed medial to the coracoid process below and perpendicular to the clavicle to obtain a short-axis view of the cords of the brachial plexus and the axillary vessels. The needle will be inserted in the supraclavicular fossa, approximately one cm posteriorly to the clavicle, and advanced in plane parallel to the probe. After passing the initial blind zone of abo
  • Other axillary block
    The axillary nerve block is performed from behind the patient with the patient seated. The axillary nerve will be identified within the quadrilateral space by placing high frequency linear probe parallel to the long axis of the humeral shaft. The nerve was identified next to the circumflex artery

Primary outcome measures

  • Time to first analgesic request in each group [Time frame: 24 hours postoperative]
Secondary outcome measures (9)
  • Block assessment and definition of successful block [Time frame: 30 minutes after the block]
  • Imaging time [Time frame: the time between probe application and insertion of the needle]
  • Needle time [Time frame: the time between insertion of the needle and complete injection of local anesthetic]
  • -Procedure time [Time frame: the summation of the imaging and needling times]
  • Pain intensity [Time frame: basal, one, 2, 4, 8, 12, 16, 20 and 24 hours postoperative]
  • Total analgesia need [Time frame: the first postoperative 24 hours]
  • Duration of the sensory block [Time frame: first 24 hours postoperative]
  • Duration of the motor block [Time frame: first 24 hours postoperative]
  • Incidence of block complications [Time frame: first 24 h0urs postoperative]

Eligibility criteria

Inclusion criteria

  • Patients acceptance to share in the study.
  • Patients with ASA physical status I-II.
  • Obese patients (BMI 30-40 kg/m²) undergoing around and below elbow surgeries under regional anesthesia.
  • Patients requiring a single injection infraclavicular retroclavicular brachial plexus block or axillary block for around and below elbow surgeries.

Exclusion criteria

  • Patients with a history of allergic reactions or contraindications to local anesthetics.
  • Patients with significant comorbidities (e.g., severe cardiovascular, neurological, or musculoskeletal disorders).
  • Patients with a history of previous shoulder or clavicle surgery that may distort anatomy and affect the efficacy of the block.
  • Pregnant or breastfeeding women.
  • Patients with a history of systemic infections or skin infections in the area of the block.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Single blind
Primary purpose
Treatment

Study locations

Egypt · 1 center
  • faculty of medicine,zagazig university Egypt — Zagazig

Identifiers

NCT: NCT07209995 · ZU-IRB#1680/23-Sep-2025

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗