A clinical comparison of continuous interscalene brachial plexus block with different basal infusion rates of 0.2% ropivacaine for shoulder surgery

Autor: Chun Woo Yang, Sung Mee Jung, Hee Uk Kwon, Choon-Kyu Cho, Jin Woong Yi, Chul Woung Kim, Jong-Kwon Jung, Young Mi An
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Korean Journal of Anesthesiology, Vol 59, Iss 1, Pp 27-33 (2010)
Druh dokumentu: article
ISSN: 2005-6419
2005-7563
DOI: 10.4097/kjae.2010.59.1.27
Popis: BackgroundA continuous interscalene brachial plexus block is a highly effective postoperative analgesic modality after shoulder surgery. However, there is no consensus regarding the optimal basal infusion rate of ropivacaine for a continuous interscalene brachial plexus block. A prospective, double blind study was performed to compare two different basal rates of 0.2% ropivacaine for a continuous interscalene brachial plexus block after shoulder surgery.MethodsSixty-two patients receiving shoulder surgery under an interscalene brachial plexus block were included. The continuous interscalene brachial plexus block was performed using a modified lateral technique with 30 ml of 0.5% ropivacaine. Surgery was carried out under an interscalene brachial plexus block or general anesthesia. After surgery, the patients were divided randomly into two groups containing 32 each. During the first 48 h after surgery, groups R8 and R6 received a continuous infusion of 0.2% ropivacaine at 8 ml/h and 6 ml/h, respectively. The pain scores at rest and on movement, supplemental analgesia, motor block, adverse events and patient's satisfaction were recorded.ResultsThe pain scores, supplemental analgesia, motor block, adverse events and patient's satisfaction were similar in the two groups.ConclusionsWhen providing continuous interscalene brachial plexus block after shoulder surgery, 0.2% ropivacaine at a basal rate of 8 ml/h or 6 ml/h produces similar clinical efficacy. Therefore, decreasing the basal rate of CISB is more appropriate considering the toxicity of local anesthetics.
Databáze: Directory of Open Access Journals
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