Confirmed cardiac output on emergency medical services arrival as confounding by indication: an observational study of prehospital airway management in patients with out-of-hospital cardiac arrest.
Atsushi SakuraiKosaku KinoshitaYukihiro MaedaYosuke HommaYoshio TaharaNaohiro YonemotoKen NagaoArino YaguchiNaoto Morimuranull nullPublished in: Emergency medicine journal : EMJ (2019)
Confirmed cardiac output on EMS arrival should be considered as confounding by indication in observational studies of prehospital airway management.