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Anesth Analg. 2013 Mar;116(3):730-3. doi: 10.1213/ANE.0b013e318280e109. Epub 2013 Feb 11.

A randomized comparison of ropivacaine 0.1% and 0.2% for continuous interscalene block after shoulder surgery.

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  • 1Department of Anesthesiology and Pain Medicine, Cheju Halla General Hospital, Doreongno 65, Jeju-si, Jeju, South Korea. everycw@daum.net

Abstract

BACKGROUND:

The optimal concentration of ropivacaine for continuous interscalene block after shoulder surgery is currently unknown.

METHODS:

Fifty-six patients received a perineural infusion of either ropivacaine 0.1% or 0.2% for 48 hours after shoulder surgery. We assessed pain scores as primary end points and supplemental analgesia, ropivacaine consumption, motor block, side effects, and patient satisfaction as secondary end points.

RESULTS:

Pain scores were not statistically different during the infusion periods; however, supplemental analgesia consumption was higher in the group receiving ropivacaine 0.1% during the first 24 hours (64% vs 28%, P = 0.022). Other secondary end points were statistically inconclusive.

CONCLUSIONS:

These results suggest that ropivacaine 0.2% provides more effective analgesia than ropivacaine 0.1% during the first 24 hours for continuous interscalene block after shoulder surgery.

PMID:
23400997
[PubMed - indexed for MEDLINE]
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