IntroductionCurrent best practice for paramedic airway management of prehospital cardiac arrest is being continually reviewed following changes to the emphasis on intubation as a primary intervention within international resuscitation guidelines. Subsequently, there is increased enthusiasm for the use of next generation supraglottic airway devices. This review aimed to identify the current evidence for the safety and effectiveness of supraglottic airways for the management of prehospital cardiac arrest. MethodsA search of the electronic databases Medline, PubMed, Science Direct and Cochrane Library was conducted. Papers were excluded if they did not examine airway management in the prehospital cardiac arrest setting, involved the use of sedative or paralysing agents, involved paediatric patients, animals or cadavers. ResultsOf the 689 articles identified, 22 peer-reviewed articles were included for analysis. All 22 articles were from the following countries: America (3), America and Canada (1), Australia (2), Austria (1), Finland (1), Germany (4), Korea (1), Japan (4), The Netherlands (1), Norway (1), Taiwan (1), and United Kingdom (2). DiscussionThis review revealed large variances in both device effectiveness and patient outcome, particularly between geographical locations. Second-generation supraglottic airway devices demonstrated considerable improvement in effectiveness over their predecessors. Interestingly, the use of bag-valve mask ventilation reported better outcomes than any other form of advanced airway intervention. Studies also highlighted the diversity of airway management techniques and devices across global EMS systems. ConclusionDespite favourable indications of the effectiveness and safety of the next generation supraglottic airway devices, the paucity of prehospital-specific research (particularly randomised controlled trials) challenges decision making regarding prehospital airway management best practice.
Supraglottic Airway Devices: A Review in a New Era of Airway Management
