Document Detail

Randomized crossover comparison between the i-gel and the LMA-Unique in anaesthetized, paralysed adults.
MedLine Citation:
PMID:  19846406     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The i-gel differs from other supraglottic airway devices, in that it has a softer, non-inflatable cuff. This study was designed to compare the performance of the i-gel and the LMA-Unique (LMA-U) when used during anaesthesia in paralysed patients. METHODS: Both devices were studied in 39 anaesthetized, paralysed patients in a randomized crossover trial. The primary outcome was airway leak pressure. Secondary outcomes included time to insertion, the number of insertion and reposition attempts, leak volumes, and leak fractions. RESULTS: There was no significant difference between the airway leak pressures of the two devices [median (IQR) leak pressures 25 (22-30) vs 22 (20-28) cm H(2)O for the i-gel and LMA-U, respectively; P=0.083, 95% CI of the mean difference -0.32 to 4.88 cm H(2)O]. The median (IQR) insertion time for the i-gel was significantly less than for the LMA-U [12.2 (9.7-14.3) vs 15.2 (13.2-17.3) s; P=0.007]. All the LMA-U devices and 38 of 39 i-gel airways were inserted at the first attempt. The number of manipulations required after insertion to achieve a clear airway was the same in both the groups (four in each). There were no statistically significant differences in leak volumes or leak fractions during controlled ventilation. CONCLUSIONS: We found no difference in leak pressures and success rate of first-time insertion between the i-gel and the LMA-U. Time to successful insertion was significantly shorter for the i-gel. We conclude that the i-gel provides a reasonable alternative to the LMA-U for controlled ventilation during anaesthesia.
V Uppal; S Gangaiah; G Fletcher; J Kinsella
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2009-10-20
Journal Detail:
Title:  British journal of anaesthesia     Volume:  103     ISSN:  1471-6771     ISO Abbreviation:  Br J Anaesth     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2009-11-17     Completed Date:  2009-12-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372541     Medline TA:  Br J Anaesth     Country:  England    
Other Details:
Languages:  eng     Pagination:  882-5     Citation Subset:  IM    
Section of Anaesthesia, Pain and Critical Care, Faculty of Medicine, University of Glasgow, UK.
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MeSH Terms
Air Pressure
Anesthesia, General / methods*
Cross-Over Studies
Disposable Equipment
Equipment Design
Laryngeal Masks*
Middle Aged
Prospective Studies
Time Factors
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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