Balloon laryngoscopy reduces head extension and blade leverage in patients with potential cervical spine injury

Background: Head extension and excessive laryngoscope blade levering motion (LBLM) are undesirable during airway management of trauma patients. We hypothesized that...研究背景：对创伤患者实施气道管理时，头部过伸（head extension）与过度喉镜叶片撬动动作（Laryngoscope Blade Levering Motion, LBLM）均属于不应发生的不良操作。我们提出如下假说：