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Year : 2018  |  Volume : 62  |  Issue : 11  |  Page : 858-864

A comparative evaluation of ProSeal laryngeal mask airway, I-gel and Supreme laryngeal mask airway in adult patients undergoing elective surgery: A randomised trial

Department of Anesthesia, Maulana Azad Medical College, New Delhi, India

Correspondence Address:
Dr. Anisha Singh
Department of Anesthesia, Maulana Azad Medical College, New Delhi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ija.IJA_153_18

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Background and Aims: Second-generation supraglottic airway devices are widely used in current anaesthesia practice. This randomised study was undertaken to evaluate and compare laryngeal mask airway: ProSeal laryngeal mask airway (PLMA), Supreme laryngeal mask airway (SLMA) and I-gel. Methods: Eighty-four adult patients undergoing elective surgery were randomly allocated to three groups: group P (PLMA), group I (I-gel) and group S (SLMA) of 28 patients each. Insertion times, number of insertion attempts, haemodynamic response to insertion, ease of insertion of airway device and gastric tube, oropharyngeal leak pressure (OLP) and pharyngolaryngeal morbidity were assessed. The primary outcome measure was the OLP after successful device insertion. Statistical analysis was performed using Statistical Package for the Social Sciences version 18.0 software using Chi-squared/Fisher's exact test (categorical data) and analysis of variance (continuous data) tests. P < 0.05 was considered statistically significant. Results: The demographic profile of patients was comparable. OLP measured after insertion, 30 minutes later and at the end of surgery differed significantly between the three groups (P < 0.001). The mean OLP was 32.64 ± 4.14 cm·H2O in group P and 29.79 ± 3.70 cm·H2O in group S. In group I, the mean OLP after insertion was 26.71 ± 3.45 cm H2O, which increased to 27.36 ± 3.22 cm H2O at 30 minutes and to 27.50 ± 3.24 cm H2O towards the end of surgery. However, these increases were not statistically significant (P = 0.641). Device insertion time was longest for group P (P = 0.001) and gastric tube insertion time was longest for group I (P = 0.001). Haemodynamic response to insertion and pharyngolaryngeal morbidity were similar with all three devices. Conclusion: PLMA provides better sealing pressure but takes longer to insert. I-gel and SLMA have similar sealing pressures. I-gel insertion time is quicker.

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