Does Ensuring Circumferential Local Anesthetic Spread Improve the Success of Ultrasound Guided Sciatic Nerve Block at the Popliteal Fossa?
Sponsor study identifier
interventional
64
1 country
1
Study Start
May 2009
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
December 2010
Actual (reported)Study Completion
December 2010
Actual (reported)Current practices when performing any peripheral nerve block may or may not involve ensuring circumferential spread of local anesthetic around the nerve. Ensuring circumferential spread can involve several redirections of the needle above and below the nerve, and potentially could result in either more discomfort for the patient or an increased chance of inadvertent direct trauma to the nerve. Not ensuring spread around the nerve may result in a slower and less complete blockade. The investigators suspect that by ensuring complete spread around the nerve, the speed of block onset would be quicker because it avoids the loss due to diffusion time.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 2010
Actual (reported)Click on a node to explore related trials.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
December 4, 2008
Actual (reported)December 5, 2008
Actual (reported)May 2009
Date type not reportedThis date has not been verified as actual or estimated.
December 2010
Actual (reported)December 2010
Actual (reported)Onset time of sciatic nerve blockade.
Every 5 minutes for 30 minutes after anesthetic injection
Block success, time required to perform block, complications/adverse events, number of needle passes, patient discomfort
24 hours
Ensuring circumferential spread of local anesthetic around the sciatic nerve.
Single shot injection of local anesthetic near the sciatic nerve will be performed, without ensuring circumferential spread.
The anesthetist will ensure, under ultrasound guidance, that local anesthetic (1 mL of 1% lidocaine) surrounds the sciatic nerve.
The anesthetist will perform a "single shot" injection of local anesthetic (1 mL of 1% lidocaine) near the sciatic nerve under ultrasound guidance, without ensuring circumferential spread around the nerve.
Toronto Western Hospital
Toronto, Ontario, M5W 2S8, Canada
Richard Brull, MD
University Health Network, Toronto
64 participants (actual enrollment reported by the registry).
First Submitted
December 4, 2008
First Posted
December 5, 2008
Study Start
May 2009
Date type not reportedThis date has not been verified as actual or estimated.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Contact the study team to confirm eligibility.
Primary Completion
December 2010
Actual (reported)Study Completion
December 2010
Actual (reported)Last Updated
December 9, 2011
Record last verified: 2010-05
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Source: ClinicalTrials.gov.
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