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[Truncated abstract] Objective: To investigate the demographics, success rate of application, nature and frequency of complication and the survival outcome of patients receiving advanced airway management in the pre-hospital setting. Design: Prospective observational cohort study. Participants: Patients who were attended to by St. John Ambulance Paramedics in the Perth Metropolitan area and selected regional areas within Western Australia. The patients were unconscious, unresponsive with no gag reflex and where application of an advanced airway would improve ventilation. Methods: Ambulance Paramedics received mannequin training within the classroom environment on the techniques for the application of the Endo-Tracheal Tube and the Laryngeal Mask Airway. The indication for the application of an advanced airway was any patient whose ventilation may be improved by intubation. These patients would be either deeply unconscious and areflexic, long term transport, severely injured (especially head injured) or cardiac arrest patients. Results: ... Paramedic assessment demonstrated that 14 (7.4%) 3 patients had an improvement in outcome. Of the 14 patients, 5 (2.7%) cardiac arrest patients survived to discharge from hospital compared to a 2.1 % survival rate for all cardiac arrest cases attended by the WAAS in 2002. Conclusion: Ambulance Paramedics can successfully apply an advanced airway apparatus in the pre-hospital environment. There was no statistical significance to demonstrate whether the introduction of advanced airway skills was beneficial or detrimental to patient survival outcome.