The Influence of a Bupivacaine Digital Nerve Block Using Rev G.
|Patients Undergoing Spine Surgery||Other: intermediate-acting digital nerve block|
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||The Influence of a Bupivacaine Digital Nerve Block With the New Continuous Sensor (Rev G) on the Accuracy of SpHb Monitoring.|
- SpHb (continuous hemoglobin monitor reading) minus tHb (clinical laboratory determined hemoglobin value). [ Time Frame: Intermittent (about hourly) hemoglobin checks throughout the surgery. ]
Use of a longer acting local anesthetic (bupivacaine) for the digital nerve block will result in SpHb (the non-invasive hemoglobin device) being sufficiently accurate for blood transfusion decisions(≤ 1.0 g/dL difference)
To assess if using an intermediate-acting digital nerve block will improve the accuracy of the SpHb readings when compared to a blood hemoglobin level analyzed in the UCSF Clinical Laboratories intermittently during the patient's surgery.
|Study Start Date:||December 2012|
|Study Completion Date:||July 2013|
|Primary Completion Date:||July 2013 (Final data collection date for primary outcome measure)|
Experimental: bupivacaine digital nerve block
Patients undergoing spine surgery will have a 50/50 chance of being randomized to receive a bupivacaine 0.25% (2 milliliters total) intermediate-acting digital nerve block.
Other: intermediate-acting digital nerve block
non-therapeutic Bupivacaine digital nerve block to assess effect on accuracy of diagnostic readings
No Intervention: No bupivacaine digital nerve block
Patients undergoing spine surgery will have a 50/50 chance of being randomized to not receive a bupivacaine 0.25% (2 milliliters total) intermediate-acting digital nerve block.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01750554
|United States, California|
|University of California, San Francisco|
|San Francisco, California, United States, 94143|
|Principal Investigator:||Ronald D Miller, MD, MS||University of California, San Francisco|