• Levent Ozturk, Elvin Kesimci, Tuna Albayrak, and Orhan Kanbak.
• Department of Anaesthesiology and Reanimation, Yıldırım Beyazıt University Ataturk Training and Research Hospital, Bilkent, Ankara, 06800, Turkey. dr_levent@yahoo.com.
• BMC Anesthesiol. 2015 Jul 21; 15: 104.

BackgroundThe goal of this study was to compare the influence of an interscalene brachial plexus block (ISB) performed with either bupivacaine or levobupivacaine in conjunction with general anaesthesia (GA) on desflurane consumption, which was titrated to maintain the recovery profiles and postoperative analgesia while also keeping the bispectral index score (BIS) between 40 and 60 in patients undergoing arthroscopic shoulder surgery.MethodsSixty patients undergoing arthroscopic shoulder surgery were prospectively randomized to receive GA with desflurane alone (group C) or in combination with a preoperative ISB by either bupivacaine 0.25 % (group B) 40 ml or levobupivacaine 0.25 % (group L) 40 ml. BIS scores or respiratory and hemodynamic parameters during the operation, recovery characteristics, consumed doses of desflurane and pain intensities were evaluated.ResultsThe eye opening time was 4.0 ± 2.5 minutes for group B, 4.6 ± 2.4 minutes for group L, and 6.2 ± 2.1 minutes for group C (p < 0.05). Group B and group L saved 36 % and 25 % desflurane per unit time respectively when compared with group C (p < 0.001and p < 0.05) while the mean pain scores and analgesic requirements the first day after surgery were higher in group C (p < 0.05).ConclusionsBecause of lower desflurane consumption, a superior recovery profile, and a high degree of patient acceptance, general anaesthesia in combination with interscalene block may be preferred in arthroscopic shoulder surgery.Trial RegistrationThe trial registration number is ACTRN12613000381785.

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