BJA Advance Access published online on August 6, 2004
British Journal of Anaesthesia, doi:10.1093/bja/aeh238
© 2004 by The Board of Management and Trustees of the British Journal of Anaesthesia
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1 Department of Anaesthesia, Kanagawa Children's Medical Centre, 2-138-4 Mutsukawa, Minami-ku, Yokohama 232-8555, Japan; Present address: Department of Anaesthesia, Fujisawa City Hospital, 2-6-1 Fujisawa, Fujisawa City 251-8550, Japan
* To whom correspondence should be addressed. E-mail: epi{at}yk.rim.or.jp.
Background. The LMA-ProSealTM is a new laryngeal mask airway with a rear cuff and drainage tube that allows a higher seal pressure than the LMA-ClassicTM for the same intra-cuff pressure, and it permits drainage of gastric secretions and access to the alimentary tract. The LMA-ProSeal can be used in children but it does not have a rear cuff. This study compared the LMA-ProSeal and the LMA-Classic in children for ease of insertion, airway sealing pressure and fibre-optic visualization. Methods. Sixty ASA I-II children undergoing herniorrhaphy, orchiopexy or myringotomy were included. The patients were randomly assigned to size 2 LMA-ClassicTM or size 2 LMA-ProSeal groups for airway management. We assessed success rates at first attempt of insertion, airway sealing pressure, fibre-optic position, success rates of gastric tube placement and postoperative blood staining of the device, tongue-lip-dental trauma and hoarseness. Results. There was no statistical difference between the two groups for the success rates at first attempt of insertion, airway sealing pressure and fibre-optic position. Gastric tube insertion was successful in 90% of cases in the LMA-ProSeal group. The LMA-Classic had a higher rate of postoperative blood staining, but there was no tongue-lip-dental trauma or hoarseness in either group. Conclusion. We conclude that ease of insertion and airway sealing pressure are similar between the LMA-ProSeal and the LMA-Classic in children.
Clinical Investigation
Comparison of the LMA-ProSealTM and LMA-ClassicTM in children
2 Department of Anaesthesia, Kanagawa Children's Medical Centre, 2-138-4 Mutsukawa, Minami-ku, Yokohama 232-8555, Japan
3 Trauma and Critical Care Center, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8606 Japan
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