• Min Kyoung Kim, Hyun Kang, Geun Joo Choi, Yong Hee Park, Jong In Oh, Chong Wha Baek, Yong Hun Jung, Young Cheol Woo, and Yeon Sil Lee.
• Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul 156-755, Republic of Korea.
• J Clin Anesth. 2016 Nov 1; 34: 327-35.

Study ObjectiveTo compare the effectiveness of streamlined liner of pharyngeal airway (SLIPA) in paralyzed and nonparalyzed, anesthetized patients undergoing gynecological surgery.DesignProspective randomized double-blind clinical trial.SettingIntraoperative.PatientsA total of 80 female patients with American Society of Anesthesiologists class I or II and who were undergoing gynecological surgery.InterventionsThe patients were randomly allocated to either the nonparalyzed group (group NR, n=40) or the paralyzed group (group R, n=40).MeasurementsOropharyngeal leakage pressure was the primary outcome. Insertion time; number of insertion attempts; success rate at first insertion; involuntary movement; peak inspiratory pressure (PIP); leakage fraction; hemodynamic changes; complications, such as blood tinging, regurgitation, and sore throat; and recovery time were also evaluated for secondary outcomes.Main ResultsOropharyngeal leakage pressure, which is primary outcome, was no difference among the groups. Insertion time, number of insertion attempts, success rate at first insertion, involuntary movement, leakage fraction, hemodynamic changes, and complications were not statistically different among the groups. The PIP in group NR was significantly increased compared to that of group R (P=.002). Recovery time was significantly longer in group R than in group NR (P<.001).ConclusionsSLIPA had good performance in both paralyzed and nonparalyzed patients. There was no difference in SLIPA performance or complications irrespective of muscle relaxant use, except decrease in PIP and prolong recovery time in paralyzed patients.Copyright © 2016 Elsevier Inc. All rights reserved.

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