Department of Paediatrics, Section of Paediatric Critical Care, Bern University Hospital, University of Bern, Bern, Switzerland.
Department of Anaesthesiology and Pain Therapy, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Br J Anaesth. 2020 Jul;125(1):e61-e68. doi: 10.1016/j.bja.2019.11.002. Epub 2019 Dec 4.
Cannot intubate-cannot ventilate situations in healthy children are uncommon but are often associated with poor outcome. Several airway management algorithms suggest emergency tracheal access. Little agreement exists on how to perform emergency front of the neck access (eFONA) in children <8 yr. We studied the learning curves of clinicians performing simulated paediatric eFONA.
After watching an instructional video, 50 physicians, from five medical specialties, performed 10 emergency tracheotomies on rabbit cadavers. We analysed their learning curves relative to performance time and concurring injuries.
With an overall success rate of 94%, performance time decreased from 107 s (standard deviation [sd], 45) to 55 s (sd 17) over 10 attempts. The learning curve was steep between the first and the fourth attempts with an 11% decrease in performance time (95% confidence interval [CI], 9-13%; P<0.001) per attempt and then flattened to a 4% (95% CI, 3-5%; P<0.001) decrease per attempt between the fourth and the tenth attempt. Age, years of clinical experience, and sex showed a significant effect on the learning curve, whereas medical specialty and adult eFONA experience did not. The 58% (95% CI, 44-72%) probability for severe injury during the first attempt decreased to 14% (95% CI, 8-20%) at the second attempt. Men were more likely to cause minor injuries than women (P<0.001).
Irrespective of medical specialty, paediatric clinicians acquired the eFONA technique within four attempts and were on average able to establish an airway in <1 min when performing emergency tracheotomy on a paediatric airway simulator.
NCT03576352.
健康儿童的无法插管-无法通气情况并不常见,但通常与不良预后相关。有几种气道管理算法建议紧急气管通路。对于<8 岁的儿童,如何进行紧急前颈部通路(eFONA),目前尚无共识。我们研究了执行模拟儿科 eFONA 的临床医生的学习曲线。
在观看教学视频后,来自五个医学专业的 50 名医生在兔尸体上进行了 10 次紧急气管切开术。我们分析了他们的学习曲线,主要是根据手术时间和并发损伤。
总体成功率为 94%,10 次尝试中,操作时间从 107 秒(标准差 [sd],45)减少到 55 秒(sd 17)。在第一到第四次尝试之间,学习曲线陡峭,每次尝试的操作时间减少 11%(95%置信区间 [CI],9-13%;P<0.001),第四次到第十次尝试之间,学习曲线变平,每次尝试的操作时间减少 4%(95%CI,3-5%;P<0.001)。年龄、临床经验年限和性别对学习曲线有显著影响,而医学专业和成人 eFONA 经验没有。第一次尝试中严重损伤的概率为 58%(95%CI,44-72%),第二次尝试中降至 14%(95%CI,8-20%)。男性比女性更容易造成轻微损伤(P<0.001)。
无论医学专业如何,儿科临床医生在四次尝试内都掌握了 eFONA 技术,在儿科气道模拟器上进行紧急气管切开术时,平均能在<1 分钟内建立气道。
NCT03576352。