Danish out-of-hospital cardiac arrest registry
| ISRCTN | ISRCTN14261134 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN14261134 |
| Protocol serial number | N/A |
| Sponsor | The Tryg Foundation |
| Funder | The Tryg Foundation |
- Submission date
- 21/12/2016
- Registration date
- 28/12/2016
- Last edited
- 14/08/2019
- Recruitment status
- Recruiting
- Overall study status
- Ongoing
- Condition category
- Circulatory System
Plain English summary of protocol
Background and study aims
A cardiac arrest is a serious medical condition in which the heart suddenly stops beating and is a major cause of death in people across all age groups. An out-of-hospital cardiac arrest (OHCA) is where this happens when a person is not in hospital, and is the most common type of cardiac arrest. Sufferers usually require rapid resuscitation in order to restart their heart and improve chances of survival. Despite best efforts, survival rates are low. In many cases, time from spotting that a person is having a cardiac arrest to the arrival of emergency medical services (EMS) is long, leaving bystanders in a critical position to potentially save a person’s life by starting resuscitation themselves. However, only a minority of cardiac arrests receive this. The Danish Cardiac Arrest Registry is a nationwide initiative to monitor and examine trends in survival and treatment of cardiac arrest in Denmark in order to improve overall prognosis and outcome in cardiac arrest victims. The aim of this study is to examine survival after out-of-hospital cardiac arrest in Denmark on a nationwide scale.
Who can participate?
All persons in Denmark suffering from an OHCA where a bystander or EMS tries to resuscitate them.
What does the study involve?
Data on all out-of-hospital cardiac arrest are collected by using pre-specified form filled out by ambulance personnel and paramedics arriving at the scene of cardiac arrest and initiating resuscitation attempts. Data are entered in electronic database and linked to the Danish Death Registry so that patient survival at 30 days can be recorded.
What are the possible benefits and risks of participating?
There are no benefits or risks to participants
Where is the study run from?
1. Copenhagen University Hospital Herlev and Gentofte (Denmark)
2. Five Prehospital Emergency Medical Services (Denmark)
3. The Institute of Health, Science and Technology, Aalborg University (Denmark)
When is the study starting and how long is it expected to run for?
January 2001 to December 2035
Who is funding the study?
The Tryg Foundation (Denmark)
Who is the main contact?
Professor Christian Torp-Pedersen
Contact information
Scientific
Institute of Health Science and Technology
Aalborg University
Søndre Skovvej 15
Aalborg
9000
Denmark
Study information
| Primary study design | Observational |
|---|---|
| Study design | Retrospective epidemiological registry study |
| Secondary study design | Epidemiological study |
| Study type | Participant information sheet |
| Scientific title | The Danish Cardiac Arrest Registry |
| Study objectives | The aim of this study is to examine survival after out-of-hospital cardiac arrest in Denmark on a nationwide scale. |
| Ethics approval(s) | Ethics approval is not required for retrospective registry studies in Denmark. |
| Health condition(s) or problem(s) studied | Out-of-hospital cardiac arrests |
| Intervention | The Danish Cardiac Arrest Registry is a collaboration between the five regional Prehospital Emergency Medical Services in Denmark. Data is collected prospectively by paramedics and ambulance personnel as part of the emergency medical services documentation of effort to improve the quality of cardiac arrest treatment in Denmark. Data on all out-of-hospital cardiac arrest are collected by using pre-specified form filled out by ambulance personnel and paramedics arriving at the scene of cardiac arrest and initiating resuscitation attempts. Data are entered in electronic database and linked to the Danish Death Registry to monitor 30-day survival. |
| Intervention type | Other |
| Primary outcome measure(s) |
30-day survival after out-of-hospital cardiac arrest is measured by linking data to the Danish National Death Registry, where all deaths are registered within 14 days of occurrence. |
| Key secondary outcome measure(s) |
1. Initiation of CPR by laypersons, defibrillation by AED’s is measured using a pre-specified form filled out by ambulance personnel and paramedics |
| Completion date | 31/12/2035 |
Eligibility
| Participant type(s) | All |
|---|---|
| Age group | All |
| Sex | All |
| Target sample size at registration | 50000 |
| Key inclusion criteria | All persons in Denmark suffering from out-of-hospital cardiac arrest where resuscitation efforts are initiated either by bystanders (with activation of the EMS system) or by EMS personnel. |
| Key exclusion criteria | Cases with obvious late signs of death (e.g. rigor mortis) for which resuscitative efforts are not initiated |
| Date of first enrolment | 01/01/2001 |
| Date of final enrolment | 31/12/2035 |
Locations
Countries of recruitment
- Denmark
Study participating centres
Kildegaardsvej 28
Hellerup
2900
Denmark
Ballerup
2750
Denmark
Aalborg
9000
Denmark
Results and Publications
| Individual participant data (IPD) Intention to share | Yes |
|---|---|
| IPD sharing plan summary | Available on request |
| IPD sharing plan | The datasets generated during and/or analysed during the current study are/will be available upon request from Professor Christian Torp-Pedersen at Aalborg University, Faculty of Health, Science and Technology, Søndre Skovvej 15, 9000 Aalborg, Denmark. His e-mail is ctp@heart.dk and telephone +45 99403802 |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Results article | results | 05/05/2015 | 14/08/2019 | Yes | No |
| Participant information sheet | Participant information sheet | 11/11/2025 | 11/11/2025 | No | Yes |
Editorial Notes
14/08/2019: Publication reference added.
