%0 Journal Article
%T Randomized comparison of the i-gel , the LMA Supreme , and the Laryngeal Tube Suction-D using clinical and fibreoptic assessments in elective patients
%A Russo Sebastian G
%A Cremer Stephan
%A Galli Tamara
%A Eich Christoph
%J BMC Anesthesiology
%D 2012
%I BioMed Central
%R 10.1186/1471-2253-12-18
%X Background The i-gel , LMA-Supreme (LMA-S) and Laryngeal Tube Suction-D (LTS-D) are single-use supraglottic airway devices with an inbuilt drainage channel. We compared them with regard to their position in situ as well as to clinical performance data during elective surgery. Methods Prospective, randomized, comparative study of three groups of 40 elective surgical patients each. Speed of insertion and success rates, leak pressures (LP) at different cuff pressures, dynamic airway compliance, and signs of postoperative airway morbidity were recorded. Fibreoptic evaluation was used to determine the devices¡¯ position in situ. Results Leak pressures were similar (i-gel  25.9, LMA-S 27.1, LTS-D 24.0 cmH2O; the latter two at 60 cmH2O cuff pressure) as were insertion times (i-gel  10, LMA-S 11, LTS-D 14 sec). LP of the LMA-S was higher than that of the LTS-D at lower cuff pressures (p <0.05). Insertion success rates differed significantly: i-gel  95%, LMA-S 95%, LTS-D 70% (p <0.05). The fibreoptically assessed position was more frequently suboptimal with the LTS-D but this was not associated with impaired ventilation. Dynamic airway compliance was highest with the i-gel  and lowest with the LTS-D (p <0.05). Airway morbidity was more pronounced with the LTS-D (p <0.01). Conclusion All devices were suitable for ventilating the patients¡¯ lungs during elective surgery. Trial registration German Clinical Trial Register DRKS00000760
%K Laryngeal mask airway
%K Leak pressure
%K Laryngeal Tube
%U http://www.biomedcentral.com/1471-2253/12/18