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Randomized Controlled Trial Clinical Trial
Ease of insertion of the laryngeal mask airway by inexperienced personnel when using an introducer.
- J Dingley, P Baynham, M Swart, and R S Vaughan.
- Department of Anaesthetics and Intensive Care, University Hospital of Wales, Cardiff, South Glamorgan, UK.
- Anaesthesia. 1997 Aug 1;52(8):756-60.
AbstractThe Portex introducer for the laryngeal mask airway was designed as an aid to successful insertion, acting as an idealised 'artificial hard palate' to guide the tip of the laryngeal mask into the correct position. A number of authors have investigated laryngeal mask insertion by unskilled personnel in certain situations, one example being nurses during in-hospital cardiopulmonary resuscitation. We investigated whether the introducer had any effect on the incidence of first-time successful LMA placement by unskilled personnel. These were nonanaesthetist doctors, randomly assigned to have one attempt at LMA insertion in an anaesthetised patient, with and without the introducer. In 44 patients with the LMA being inserted according to the manufacturer's instructions, there was a 68% success rate (14 failures). In 45 patients with the LMA being inserted with the aid of a Portex introducer, there was a 96% success rate (two failures). This was a highly significant improvement (p < 0.001).
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