Background Foreign body airway obstructions (FBAO, choking) are a significant cause of preventable mortality. Abdominal thrusts, back blows, and chest compressions are traditional interventions; however, suction-based airway clearance devices (anti-choking devices, ACDs) have recently been marketed as an alternative. Of note, there is limited published evidence regarding their efficacy and safety. Our research has two aims: 1) To investigate what situational and patient factors are frequently identified, and which are associated with relief of the FBAO, and survival, in individuals with a FBAO treated with an ACD; and 2) To describe the experience of individuals who have used ACDs in response to a FBAO and identify facilitators and barriers to the use of ACDs compared to traditional interventions.

中文翻译：

---

一种用于治疗异物气道阻塞的新型外用抽吸式气道清除装置的多方法评估方案

背景异物气道阻塞（FBAO，窒息）是导致可预防死亡的重要原因。腹部推力、背部打击和胸外按压是传统的干预措施；然而，基于抽吸的气道清除装置（抗窒息装置，ACD）最近已作为替代品上市。值得注意的是，关于其有效性和安全性的已发表证据有限。我们的研究有两个目标：1) 调查哪些情境和患者因素经常被识别，以及哪些与 FBAO 的缓解和接受 ACD 治疗的 FBAO 个体的生存相关；2) 描述使用 ACD 应对 FBAO 的个人的经验，并确定与传统干预措施相比使用 ACD 的促进因素和障碍。