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Video Analysis of Prehospital Emergency Intubations

2019年5月6日更新者：University Hospital Inselspital, Berne

Evaluation of Prehospital Emergency Intubations Using Videolaryngoscopes

The Investigators' knowledge about pre-hospital emergency intubations is still limited. Various factors such as the average and the normal range of intubation time are still unknown. Since its launch Rega videotapes all intubation attempts with the C-MAC videolaryngoscope. The investigators prospectively analysed all routinely recorded intubation videos during one year performed by the Rega crews. The investigators analysed different parameters such as first pass success rate and the time to successfully intubate alongside with others. The goal was to find out more about this difficult procedure, about the problems which regularly occur and on what should be put particular emphasis during training.

研究概览

地位

完全的

条件

详细说明

Pre-hospital emergency intubations are especially hazardous. The incidence of unanticipated difficult airways is higher (9,3 % of prehospital intubations are more difficult than anticipated). The first attempt intubation success rates are lower and the rate of complications compared to in-hospital emergency intubations is higher.

There is conflicting evidence if first attempt intubation success rate in prehospital intubations differs between intubations performed by videolaryngoscopy and direct laryngoscopy. On the other hand in pre-hospital airway management, the use of a C-MAC videolaryngoscope improved the visualization of glottic structures significantly.

The C-MAC has recently launched a new version, which allows videotaping of intubations. Rega decided to videotape all intubation attempts for legal purposes and quality control. These videos are stored at a Rega-based secure central database.

The Investigators knowledge there is only one video-enhanced retrospective analyses of a limited number of videolaryngoscopic pre-hospital intubations.

So far, there is no video-enhanced prospective analysis of first attempt intubation success rates or of the time necessary for successful intubation with videolaryngoscopes in the pre-hospital setting available. Therefore, the investigators intend to determine the exact first attempt intubation success rate and the time necessary to successfully intubate, alongside with parameters such as the Cormack/Lehane grade, blade position (Macintosh vs Miller) and others (e.g. difficulties during intubation) in the pre-hospital physician-staffed HEMS-setting. The investigators' goal is to learn more about what is actually happening during prehospital intubations and what type of difficulties may occur.

The investigators therefore prospectively analysed all routinely recorded intubation videos (using the built-in camera of the C-MAC videolaryngoscope) during one year performed by the Rega crews. These videos show real life intubations through the video function included in the device, only the image from the tip of the laryngoscopy blade inside the patient's mouth is recorded. The operating physicians additionally provided anonymous information about intubation management for each video after returning to the helicopter base

研究类型

观察性的

注册 (实际的)

422

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

瑞士
- - Bern、瑞士、3011
    - Bern University Hospital and University of Bern

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

孩子
成人
年长者

接受健康志愿者

不

有资格学习的性别

全部

取样方法

非概率样本

研究人群

All Patients which underwent Intubation performed by the Rega during 1year (15.02.18-14.02.19) because of medical or Trauma associated reasons (with or without cardiac arrest).

描述

Inclusion Criteria:

• All videos routinely taken from intubations performed during 1 year at the Swiss Air Rescue (Rega) at all 13 helicopter bases

Exclusion Criteria:

Patients who were intubated primarily using other devices without a camera
Intubations that were not recorded (missing data).

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

研究衡量的是什么？

主要结果指标

结果测量	措施说明	大体时间
First attempt intubation success rate 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	Rate of a successful intubation at first attempt	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured

次要结果测量

结果测量	措施说明	大体时间
Overall success rate 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	The overall rate of successful intubation	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Time intervals during intubation 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	entry-to-tube time (C-MAC crossing the lips to first appearance of tracheal tube in the field of view), time to intubation (C-MAC crossing the lips for the first time until passage of the tube through the vocal cords, the video is kept running throughout the intubation procedure), time between passage of the tube until removal of the blade from the mouth, overall time (from C-MAC crossing the lips for the first time until removal, the video is kept running throughout the intubation procedure), tube time (time from first appearance of the tube in the field until passage of the tube through the vocal cords), intubation time of the successful intubation attempt (C-MAC crossing the lips in the successful attempt until passage of the tube through vocal cords)	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Number of intubation attempts 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	The total number of attempts needed for the intubation	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Best C/L(Cormack/ Lehane 1-4) grade and best POGO (percent of glottis Opening 0 - 100 %) score 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	The best C/L and best POGO score achieved during the intubation	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Additional Airway devices used 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	If additional devices have been used (e.g. Frova-like,catheter, Magill forceps, suction catheter)	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Number of glottic hits 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	Number of attempts to advance the tracheal tube, but only glottic structures are being hit	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Blade positioning 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	Blade positioning during intubation (Macintosh vs. Miller)	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Unintended blade positions 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	Unintended blade positions (too deep, downfolding of epiglottis)	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Secretion in the mouth and difficulties in visualisation because of it 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	Vomit, blood, saliva	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Fogging of the camera 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	videolaryngoscope camera clear or fog	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Oesophageal intubation 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	Oesophageal fail intubation during the procedure	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Injury of the pharyngeal mucose due to the blade 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	Videolaryngoscope injury of the pharyngeal mucose due to the blade	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured
Open or Closed vocal cords 大体时间：Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured	Positioning of vocal cords if visible (open, closed), start of movement of vocal cords	Starts when the videolaryngoscope is inserted in the patients mouth for the first time and ends when the airway is secured

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

University Hospital Inselspital, Berne

调查人员

首席研究员：Lorenz Theiler, Prof.、Department of Anaesthesiology and Pain Therapy, Bern University Hospital

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2018年2月15日

初级完成 (实际的)

2019年2月14日

研究完成 (实际的)

2019年2月14日

研究注册日期

首次提交

2019年4月17日

首先提交符合 QC 标准的

2019年4月24日

首次发布 (实际的)

2019年4月29日

研究记录更新

最后更新发布 (实际的)

2019年5月8日

上次提交的符合 QC 标准的更新

2019年5月6日

最后验证

2019年5月1日