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Clinical Trial Summary

In this trial, the objective is to compare single- and double-injection ultrasound-guided costoclavicular blocks. The rationale behind this idea is that a second local anesthetic injection, inside the costoclavicular space, may compensate for the dynamic cord dispersion seen with the single-injection technique. Thus the research hypothesis is that, compared to its single-injection counterpart, a double injection costoclavicular block will result in a shorter onset time.


Clinical Trial Description

The costoclavicular block (CCB) constitutes a relatively novel technique for infraclavicular brachial plexus blockade, whereby local anesthetics (LAs) are injected inside the costoclavicular space. In this location, the 3 cords of the brachial plexus are very tightly clustered together; this topography would theoretically result in a very swift brachial plexus block Unfortunately, in two recent trials comparing CCB and conventional infraclavicular brachial plexus block, the authors were unable to detect differences in success rate, onset times and LA requirement between the 2 methods. It could be speculated that the explanation resides in dynamic cord dispersion. With CCB, the initial needle target lies in the middle of the 3 cords of the brachial plexus. However, with LA injection, the cords can quickly migrate away from each other. Thus, the anatomical benefits conveyed by the initial compact topography may be lost.

In this trial, the objective is to compare single- and double-injection ultrasound-guided costoclavicular blocks. The rationale behind this idea is that a second local anesthetic injection, inside the costoclavicular space, may compensate for the dynamic cord dispersion seen with the single-injection technique. Thus the research hypothesis is that, compared to its single-injection counterpart, a double injection costoclavicular block will result in a shorter onset time. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03595514
Study type Interventional
Source McGill University Health Center
Contact De Q Tran, MD, FRCPC
Phone 5149341934
Email de_tran@hotmail.com
Status Recruiting
Phase N/A
Start date July 30, 2018
Completion date December 2018

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