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Article: Ultrasonographic guidance reduces the amount of local anesthetic for 3-in-1 blocks
- Article from:
- Regional Anesthesia and Pain Medicine
- Article date:
- November 1, 1998
- Author:
CopyrightCopyright Churchill Livingstone Inc., Medical Publishers Nov/Dec 1998. Provided by ProQuest LLC. (Hide copyright information)
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Background and Objectives. Recently it has been demonstrated that the use of ultrasound (US) improves the onset time and the quality of sensory block for 3-in-1 blocks compared with conventional nerve stimulator (NS) techniques. The present study was designed to evaluate if US guidance for 3-in-1 blocks reduces the amount of local anesthetic compared to NS guidance. Methods. After institutional approval and informed consent, 60 patients undergoing hip surgery following trauma were randomly assigned to three groups of 20 patients each. In group A, the 3-in-1 block was performed using US guidance with 20 mL 0.5% bupivacaine. Group B received 20 mL 0.5% bupivacaine, and group C received 30 mL ...