The Danish in-hospital cardiac arrest registry (DANARREST)

Figures & data

Figure 1 Number of reported cardiac arrests and reporting hospitals per year. The figure illustrates the number of reported cardiac arrests (blue circles, left y-axis) and the number of hospitals reporting at least one cardiac arrest per year (red squares, right y-axis). Only cardiac arrests with a clinical indication for cardiopulmonary resuscitation are included. In 2017, two hospitals were involved in the registry but had no in-hospital cardiac arrest.

Table 1 Data collected

Number	Variable	Options
1	Patient name and personal registration (CPR) number	Free text
2	Name of data collector+date	Free text+date
3	Location	Emergency department Outpatient clinic Ward Operation room Post-anesthesia recovery room Intensive care unit Cardiac catherization laboratory Neonatal ward Other (free text)
4	Time cardiac arrest team called	Time+date
5.1	Cardiac arrest	Yes No
5.2	Clinical indication for CPR (ie, no prior “do-not-resuscitate” order)	Yes No
6.1	ECG-monitored	Yes No
6.2	Witnessed?	Yes, professional Yes, layperson No
7	Cardiac arrest recognized by	Professional Layperson
8	CPR prior to arrival of the cardiac arrest team	Chest compressions and ventilations Compressions-only Ventilations-only None
9.1	Prior to arrival of the cardiac arrest team: First rhythm	Non-shockable Shockable No rhythm analysis
9.2	Prior to arrival of the cardiac arrest team: First rhythm analysis done by	AED Manuel defibrillator Other ECG-monitoring
9.3	Prior to arrival of the cardiac arrest team: First defibrillation with	AED Manuel defibrillator No defibrillation Other
10	First observed rhythm	Ventricular fibrillation Pulseless ventricular tachycardia Pulseless electrical activity
		Asystole No manual analysis Pulse-bearing rhythm
11	Patient status at the time of arrival of the cardiac arrest team: Cardiac arrest?	Yes No
12	Medication administered	Adrenaline Amiodaron None Other
13.1	Mechanical chest compressions	Yes No
13.2	Intubation prior to cardiac arrest	Yes No
13.3	Intubation during cardiac arrest	Yes No
13.4	Capnography	Yes No
14	Time of cardiac arrest recognition	Date+time
15	Time of chest compressions or ventilations	Time
16	Time of first rhythm analysis	Time
17	Time of first defibrillation	Time
18	Time of arrival of the cardiac arrest team	Time
19.1	Reason for termination of resuscitation attempt	Return of spontaneous circulation Artificial circulation^a Death
19.2	Time of termination of resuscitation attempt	Time
20	Cause of the cardiac arrest	Non-cardiac Presumed cardiac
21	Members of the cardiac arrest team	Anesthesiologist Nurse anesthetist Cardiologist Nurse Service personnel Other (free text)

Note: ^aeg, extracorporeal membrane oxygenation.

Abbreviations: AED, automated external defibrillator; CPR, cardiopulmonary resuscitation; ECG, electrocardiogram.

Table 2 Quality indicators in DANARREST^a

Number	Indicator^b	Type	Standard
1	Witnessed	Process	≥85%
2	ECG-monitored	Process	≥65%
3	Time from recognition of cardiac arrest to initiation of CPR ≤1 minutes	Process	≥90%
4	Time from recognition of cardiac arrest to first rhythm analysis ≤2 minutes	Process	≥90%
5	Return of spontaneous circulation	Outcome	≥55%
6	30-day survival	Outcome	≥30%
7	1-year survival	Outcome	≥20%

Notes: ^aAs of January 1, 2017. ^bAll indicators are reported as the proportion of patients who fulfilled the indicator.

Abbreviations: CPR, cardiopulmonary resuscitation; ECG, electrocardiogram.