USG Imaging of Brachial Plexus Sheath & Its Fascial Compartments at Costoclavicular Space & Infraclavicular Fossa

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-06-01

Study Completion Date

2020-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The existence of the brachial plexus sheath (BPS) and its septae and compartments has been a subject of debate and controversy. Numerous cadaver studies indicate that BPS is present while other researchers based on limited clinical data suggest none. Nevertheless, cumulative evidence over the last six decades indicate that it is multi-layered, fibrous and a web-like connective tissue that is derived from the deep cervical fascia and fused with the deep fascia of the arm The BPS completely envelopes that neurovascular bundle and filed with loose connective tissue and fat. It is a multi-compartment structure in the axilla with each nerve having a separate compartment, that communicate with each other. Some studies suggested that the septae affect the spread of local anesthetic during an axillary or infraclavicular brachial plexus block, while some suggest the opposite. With the use of ultrasound imaging, researchers found the presence of this connective tissue septum within the BPS at the costoclavicular space and infraclavicular fossa. The septum is visualized as a linear hyperechoic band on ultrasound imaging and when present appears to reduce the spread of the drugs during brachial plexus block. Yet the anatomy is poorly seen with the previous generation of ultrasound imaging. The aim of this study is to define the connective tissue (fascial) layers that surround the brachial plexus and its septum at the infraclavicular fossa by reviewing our archived high definition ultrasound images of 100 patients who had successfully undergone the ultrasound guided brachial plexus block over a 5 year period (2013 to 2018).

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

Paraneural Sheath & Fascial Compartments Surround Brachial Plexus at Supraclavicular Fossa During Selective Trunk Block

NCT05045300

Musculoskeletal Diseases or Conditions

COMPLETED

Description of the Brachial Plexus Block at the Humeral Head in Children: a Sono-anatomical Study

NCT06158243

Anesthesia, Local Brachial Plexus; Pressure

NOT_YET_RECRUITING

Posterior Parasagittal In-Plane Ultrasound-Guided Infraclavicular Brachial Plexus Block

NCT02312453

Brachial Plexus Block

COMPLETED NA

Using Ultrasound in Infraclavicular in Upper Limb Surgeries

NCT05240729

Upper Limb Surgeries

COMPLETED NA

Parasagittal Vs Cornerpocket Approaches

NCT06352333

Supraclavicular Brachial Plexus Block

NOT_YET_RECRUITING NA

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This is a retrospective study reviewing archived high definition ultrasound images as multiple short video loops (6 seconds) in avi format from 100 adult patients who had undergone ultrasound guided costoclavicular brachial plexus block for surgical anesthesia for their upper limb surgery over a 5 year period, from April 2013 to April 2018 by three experienced anesthesiologists. Demographics data such as age, gender, body mass index, ASA Physical Classification System, local anesthetic drug used and mode of anesthesia can be retrieved from patients' record or Clinical Management System. No direct contact nor intervention will be done to the patients in this study, so waiver of patient informed consent has been sought. There will be no patients' data in any of the ultrasound images as the ultrasound video loops for the costoclavicular brachial plexus block are routinely saved anonymously for all patients. All information related to the patients will be kept confidential and they will not be identified in any form in future publications.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Musculoskeletal Diseases or Conditions

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

CASE_ONLY

Study Time Perspective

RETROSPECTIVE

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Ultrasound guided Costoclavicular Brachial Plexus Block

Ultrasound images from patients scheduled for upper limb surgery under costoclavicular brachial plexus block (one kind of regional anesthesia) have been routinely collected at our institute. These images will be reviewed.

Intervention Type PROCEDURE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Archived high definition ultrasound images (datasets) as multiple short video loop (6 seconds) in avi format from 100 adult patients who had undergone ultrasound guided costoclavicular brachial plexus block for surgical anesthesia during forearm or hand surgery, over a 5 year period, from April 2013 to April 2018 will be retrieved for review.