Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Jan 2004
Editorial CommentRestricting spinal block to the operative side: why not?
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Reg Anesth Pain Med · Jan 2004
Randomized Controlled Trial Comparative Study Clinical TrialInterscalene perineural ropivacaine infusion:a comparison of two dosing regimens for postoperative analgesia.
BACKGROUND AND OBJECTIVS: A continuous interscalene nerve block with a perineural infusion of ropivacaine 0.2% at 8 mL/h has been shown to provide potent analgesia following moderately painful shoulder surgery. However, this high basal rate limits infusion duration for ambulatory patients who must carry the local anesthetic reservoir. We undertook this investigation to determine if the basal rate of an interscalene perineural ropivacaine infusion could be decreased by 50% with a concurrent 200% increase in patient-controlled bolus dose without compromising infusion benefits in ambulatory patients undergoing moderately painful orthopedic shoulder surgery. ⋯ Following moderately painful ambulatory shoulder surgery, decreasing an interscalene perineural ropivacaine 0.2% basal rate from 8 to 4 mL/h provides similar baseline analgesia and lengthens infusion duration, but compromises other infusion benefits.