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Table 3 Core post-intervention variables

From: A consensus-based template for uniform reporting of data from pre-hospital advanced airway management

Data variable number Data variable name Type of data Data variable categories or values Definition of data variable
16 Post-intervention ventilation Nominal 1 = Spontaneous
2 = Controlled
3 = Mixed
4 = Unknown
How is patient ventilated following
airway management? If both
spontaneous and controlled, choose
mixed.
12b Post-intervention systolic blood pressure (SBP) Continuous Number/Not recorded First value recorded by the EMS
provider after finalised airway
management
15b Post-intervention SpO2 Continuous Number/Not recorded First value recorded by the EMS
provider after finalised airway
management
17a Post-intervention EtCO2 Continuous Number/Not recorded First value recorded by the EMS
provider after finalised airway
management
12c Post-intervention SBP on arrival Continuous Number/Not recorded First value recorded by the EMS
provider after patient arrives at
hospital
13b Post intervention heart rate Continuous Number/Not recorded First value recorded by the EMS
provider after finalised airway
management
15c Post-intervention SpO2 on arrival Continuous Number/Not recorded First value recorded by the EMS
provider after patient arrives at
hospital
17b Post-intervention EtCO2 on arrival Continuous Number/Not recorded First value recorded by the EMS
provider after patient arrives at
hospital
18 Survival status Nominal 1 = Dead on-scene or on arrival
2 = Alive on hospital arrival
3 = Unknown
Patient survival status: EMS
treatment and on arrival at hospital
19 Attempts at airway intervention Nominal 1 = One attempt
2 = Multiple attempts by one provider
3 = Multiple attempts by two or more providers
4 = Unknown
Number of attempts at securing the
airway with a supraglottic airway
device (SAD) or tracheal intubation
(TI).
20 Complications Nominal 1 = ETT misplaced in oesophagus
2 = ETT misplaced in right mainstem bronchus
3 = Teeth trauma
4 = Vomiting and/or aspiration
5 = Hypoxia
6 = Bradycardia
7 = Hypotension
8 = Other, define
9 = None recorded
Problems and mechanical
complications recognised on scene
and caused by airway management.
Physiologic complications (5, 6, and 7)
are regarded as such if they were not
present before airway intervention
and were recorded during or
immediately after airway
management. The following
definitions are used:
hypoxia: SpO2 < 90%
bradycardia: pulse rate <60 bpm
hypotension: SBP < 90
21 Drugs used to facilitate
airway procedure
Nominal 1 = Sedatives
2 = NMBA
3 = Analgesics/opioids
4 = Local/topic anaesthetic
5 = None
Drugs used to facilitate the airway
intervention. Select all that apply
22 Intubation success Nominal 1 = Success on first attempt
2 = Success after more than one attempt and one rescuer
3 = Success after more than one attempt and multiple rescuers
3 = Not successful
Successful intubation defined as tube
verified in the trachea.
An intubation attempt is defined as
attempted laryngoscopy with the
intent to intubate
23 Device used in successful airway management Nominal 1 = Bag Mask Ventilation
2 = SAD
3 = Oral TI
4 = Nasal TI
5 = Surgical airway
6 = None
7 = Unknown
Device used to manage successful
airway or device in place when
patient is delivered at hospital/ED
  1. ED: Emergency Department
  2. EMS: Emergency Medical Service
  3. ETT: Endotracheal Tube
  4. NMBA: Neuro Muscular Blocking Agent