A randomised controlled comparison between stimulating and standard catheters for lumbar plexus block

G. Cappelleri, D. Ghisi, E. Ceravola, L. Guzzetti, A. L. Ambrosoli, M. Gemma, G. Cornaggia

Research output: Contribution to journalArticle

Abstract

The aim of this randomised, prospective, blinded study was to evaluate if stimulating catheters can decrease the minimum effective anaesthetic volume in 50% of patients during lumbar plexus block using mepivacaine 1.5% compared with standard catheters. Fifty-eight patients of ASA physical status 1-3 were randomly allocated to receive a lumbar plexus block via a stimulating or standard catheter, with 29 in each group. The first dose was 30 ml and subsequent doses were determined using the up-and-down staircase method. The minimum effective anaesthetic volume50 was 12.2 ml (95% CI 7.3-17.1 ml) using the stimulating catheter and 24.8 ml (95% CI 23.2-27.5 ml) with the standard catheter (p <0.0001). Complete lumbar plexus block was achieved with the initial dose of mepivacaine in 29 (100%) patients in the stimulating catheter group and 20 (69%) patients in the standard catheter group (p = 0.002). This study showed that use of a stimulating catheter halves the minimum effective anaesthetic volume50 of mepivacaine 1.5% while increasing the success rate in patients receiving continuous lumbar plexus block.

Original languageEnglish
Pages (from-to)948-955
Number of pages8
JournalAnaesthesia
Volume70
Issue number8
DOIs
Publication statusPublished - Aug 1 2015

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine
  • Medicine(all)

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    Cappelleri, G., Ghisi, D., Ceravola, E., Guzzetti, L., Ambrosoli, A. L., Gemma, M., & Cornaggia, G. (2015). A randomised controlled comparison between stimulating and standard catheters for lumbar plexus block. Anaesthesia, 70(8), 948-955. https://doi.org/10.1111/anae.13077