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The usefulness of Smart Pilot View for fast recovery from desflurane general anesthesia

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Abstract

Introduction

Smart Pilot View (SPV) (Dräger Medical) provide information about the estimated drug effect of anesthetic drugs. We conducted a prospective randomized trial to evaluated the recovery time in SPV-guided general anesthesia compared with usual practice in patients with desflurane general anesthesia.

Method

Thirty-four American Society of Anesthesiologist’s physical status I–II patients scheduled for elective surgery under general anesthesia were enrolled in the study. The patients were allocated to one of the following two groups: the Smart Pilot View group (group SPV) or the control group (group C). General anesthesia was induced by propofol and maintained by desflurane end-tidal concentration of 4.2%. During the procedure, desflurane concentration was adjusted to maintain BIS values between 40 and 60 and above MAC 90. In group SPV, desflurane concentration and infusion rate of remifentanil were decreased to achieve MAC 90 about 10 min before the end of the procedure. In group C, the desflurane concentration and infusion rate of remifentanil were maintained unchanged until the end of the procedure.

Results

Fifteen patients were enrolled in group C, and seventeen of these were enrolled in group SPV. The time taken for the opening of the patient's eyes was 292 ± 53 s in group C and 218 ± 44 s in group SPV. The time taken for recovery of orientation was 451 ± 100 s in group C and 316 ± 57 s in group SPV. Both times were significantly faster in the group SPV.

Conclusion

Smart Pilot View guided anesthesia enabled faster recovery from desflurane general anesthesia.

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Correspondence to Yasuhiro Morimoto.

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Appendix

Appendix

The time course of raw data [desflurane concentrations (Fig. 5), NSRI (Fig. 6)] during surgery shown as the spaghetti plots.

Fig. 5
figure 5

The time course of desflurane concentrations

Fig. 6
figure 6

The time course of NSRI

START: at the start of surgery, 1H: one hour after start of surgery, END: at the end of surgery, NSRI: Noxious stimulation response index.

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Morimoto, Y., Shiramoto, H. & Yoshimura, M. The usefulness of Smart Pilot View for fast recovery from desflurane general anesthesia. J Anesth 35, 239–245 (2021). https://doi.org/10.1007/s00540-021-02905-z

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  • DOI: https://doi.org/10.1007/s00540-021-02905-z

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