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Comparison of ETView SL, Airtraq, and Macintosh laryngoscopes for face-to-face tracheal intubation: a randomized crossover manikin trial

      Every patient in the pre-hospital should be treated as a patient with a full stomach. Ventilation of such a patient using a bag-valve-mask may lead to gastric inflation [
      • Rabus FC
      • Luebbers HT
      • Graetz KW
      • Mutzbauer TS
      Comparison of different flow-reducing bag-valve ventilation devices regarding respiratory mechanics and gastric inflation in an unprotected airway model.
      ,
      • Kurowski A
      • Szarpak L
      • Truszewski Z
      • Czyzewski L
      Can the ETView VivaSight SL rival conventional intubation using the Macintosh laryngoscope during adult resuscitation by novice physicians?: a randomized crossover manikin study.
      ]. Moreover, aspiration of gastric contents into the lungs may result in toxic pneumonia [
      • Braun P
      • Putzer G
      • Strapazzon G
      • Wimmer A
      • Schnell H
      • Arnold H
      • et al.
      Effects of stomach inflation on cardiopulmonary function and survival during hemorrhagic shock: a randomized, controlled, porcine study.
      ]. Increased risk of regurgitation occurs both in people who in a short time before the ventilation ate a meal, trauma patients and pregnant women. To reduce the risk of aspiration, the gold standard is to secure the airway in the unconscious through a tracheal tube [
      • Szarpak L
      • Karczewska K
      • Evrin T
      • Kurowski A
      • Czyzewski L
      Comparison of intubation through the McGrath MAC, GlideScope, AirTraq, and miller laryngoscope by paramedics during child CPR: a randomized crossover manikin trial.
      ]. The standard position during intubation is about finding the intubator behind the head of the victim. However, in some emergency situations, such as traffic accidents, to achieve such a position is difficult or completely impossible [
      • Szarpak Ł
      • Truszewski Z
      • Gałązkowski R
      • Evrin T
      • Czyzewski Ł
      A randomized crossover trial comparing the C-MAC and Macintosh laryngoscopes for face-to-face intubation in a manikin.
      ,
      • Truszewski Z
      • Szarpak Ł
      • Smereka J
      • Kurowski A
      • Evrin T
      • Czyzewski Ł
      Comparison of the VivaSight single lumen endotracheal tube and the Macintosh laryngoscope for emergency intubation by experienced paramedics in a standardized airway manikin with restricted access: a randomized, crossover trial.
      ]. Intubation of a patient jammed in a vehicle may be hindered owing to impeded airway access. One solution may be face-to-face intubation [
      • Arslan ZI
      • Alparslan V
      • Ozdal P
      • Toker K
      • Solak M
      Face-to-face tracheal intubation in adult patients: a comparison of the Airtraq™, Glidescope™ and Fastrach™ devices.
      ]. The aim of the study was to compare the efficacy of face-to-face intubation with the use of 3 different devices.
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