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The Influence of a Bupivacaine Digital Nerve Block With the New Continuous Sensor (Rev G) on the Accuracy of SpHb Monitoring.
The investigators are proposing to continue investigation to improve the accuracy of the SpHb (continuous hemoglobin monitoring device) by administering an intermediate acting digital nerve block in the finger connected to the SpHb, specifically bupivacaine 0.25% in patients undergoing spine surgery. Bupivacaine is FDA approved and in routine use.
Details
| Lead sponsor | University of California, San Francisco |
|---|---|
| Phase | NA |
| Status | COMPLETED |
| Enrolment | 19 |
| Start date | 2012-12 |
| Completion | 2013-07 |
Conditions
- Patients Undergoing Spine Surgery
Interventions
- intermediate-acting digital nerve block
Primary outcomes
- SpHb (continuous hemoglobin monitor reading) minus tHb (clinical laboratory determined hemoglobin value). — 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.
Countries
United States