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Conventional Versus Posterior Approach in Ultrasound-Guided Parasagittal In-Plane Infraclavicular Brachial Plexus Block

Brachial Plexus Block Clinical Trial

Official title:
A Prospective, Randomized Comparison Between Lateral and Posterior Approach In Ultrasound-Guided Parasagittal In-Plane Infraclavicular Brachial Plexus Block

Clinical Trial Summary

The lateral parasagittal in-plane is the current conventional approach in ultrasound-guided infraclavicular brachial plexus block. However this technique is less popular because brachial plexus at the infraclavicular level runs deeper compared to its course proximally, often give rise to impaired needle visualisation due to its steep angle of needle trajectory to the ultrasound beam. A new posterior parasagittal in-plane approach was introduced to improve needle visibility. This approach proved feasible from our case series hence the investigators would like to compare it with the conventional method in this study

Clinical Trial Description

This study compared the conventional lateral and posterior approach parasagittal in-plane ultrasound guided infraclavicular brachial plexus block for upper limb surgery. A cadaveric study was also performed to complement the findings.

After obtaining approval from the Medical Ethics Committee, University Malaya Medical Centre (IRB reference no. 949.14 dated 17 October 2012), 46 patients undergoing upper limb surgery were prospectively recruited and randomized. A cadaveric dissection was also performed.

DESIGN: Prospective randomized study

SETTING: Single centre, University of Malaya Medical Centre, Kuala Lumpur, Malaysia; November 2012 to October 2013

INTERVENTION: Ultrasound guided, lateral or posterior parasagittal in-plane infraclavicular brachial plexus blocks were performed on patients, depending on randomization. All blocks were performed using 21G x 4 inch Stimuplex A (B Braun Medical) without nerve stimulation plus SonoSite M-Turbo with HFL38x/ 13-6 MHz linear transducer probe. A 25-ml local anaesthetic admixture [Lignocaine 2% (100mg) plus Ropivacaine 0.75% (150mg)] were injected to all patients. A total volume of normal saline 0.9% 25ml mixed with methylene blue (0.2ml) was used for cadaveric study. ;

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02462408
Study type Interventional
Source University of Malaya
Contact
Status Completed
Phase N/A
Start date November 2012
Completion date October 2013
View Details
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