• Masui · Jul 2015

    [Levobupivacaine for Ultrasound-guided Interscalene Block: Block with 6 ml Leads to Less Occurrence of Respiratory Depression and Hemidiaphragmatic Paralysis].

    • Taketo Nakamura, Shinnosuke Miyamoto, Keikoh Aishin, and Megumi Hashimoto.
    • Masui. 2015 Jul 1;64(7):756-60.

    BackgroundInterscalene brachial plexus block (ISBPB) complications depend usually on the dose administered.MethodsThe object of this study was to determine whether ultrasound-guided ISBPB with 6 ml of 0.5% levobupivacaine would reduce occurrence of respiratory depression and hemidiaphragmatic paralysis.ResultsPatients undergoing arthroscopic shoulder surgery under nerve block with general anesthesia (n = 20) were recruited. There were no differences between pre and post operative respiratory function (forced expiratory volume 1.0 (sec) % and vital capacity). Hemidiaphragmatic paralysis on postoperative ultrasonography was found in two patients.ConclusionsThe use of low-volume ultrasound-guided ISBPB is associated with less respiratory depression and hemidiaphragmatic paralysis.

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