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Drowning Incidents Treated by the Danish SAR Helicopters

Incidence and Characteristics of Drowning Patients at Sea Treated by the Royal Danish Air Force's Search And Rescue Helicopters From 2014-2023: a Nationwide Registry-based Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06322134
Acronym
DROWN_SAR
Enrollment
247
Registered
2024-03-20
Start date
2014-01-01
Completion date
2024-10-31
Last updated
2024-12-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Drown, Drowning, Drowning and Nonfatal Submersion, Drowning and Submersion Due to Fall Off Ship, Drowning and Submersion Due to Sailboat Sinking, Drowning and Submersion, Undetermined Intent, Drowning and Submersion While in Natural Water, Drowning; Anoxia, Drowning, Near, Drowning or Immersion of Unknown Intent

Keywords

Drowning, Danish Drowning Formula, Royal Danish Air Force, Search And Rescue (SAR), Emergency Medical Service (EMS), Registry, Retrospective, Epidemiology, Danish Prehospital Drowning Data

Brief summary

Improving oxygenation and ventilation in drowning patients early in the field is critical and may be lifesaving. This may be achieved by helicopter emergency medical services (HEMS) such as the Danish Air Ambulance, or the Royal Danish Air Force's Search And Rescue (SAR) helicopters. The SAR operates in all weather conditions and is equipped with a hoist system, able to hoist patients from the sea or small ships without helipads. This study aimed to estimate the incidence of drowning missions attended by the Royal Danish Air Force's SAR helicopter and describe patient characteristics and prehospital interventions.

Detailed description

The national Danish Drowning Cohort contains data on all fatal and non-fatal drowning patients treated by the Emergency Medical Services. However, data on drowning patients treated by the SAR helicopters is reported in a separate system. The population of drowning patients treated by the SAR helicopters has never been described, thus contributing to the potential underreporting of the most critically ill drowning patients in Denmark. Given the rarity of drowning, registry-based studies are needed to provide patient characteristics and evaluate critical care interventions performed on this group of patients. This study aims to identify and describe a national cohort of drowning patients at sea treated by the Royal Danish Air Force's SAR helicopters from 2014 to 2023.

Interventions

Patients categorized as drowning have been experiencing respiratory impairment from submersion or immersion in liquid and needing rescue by the Royal Danish Air Force's Search and Rescue (SAR) helicopters.

Sponsors

Danish Defence
CollaboratorUNKNOWN
Prehospital Center, Region Zealand
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Patients treated by the Danish SAR helicopters AND * Drowning as defined by the WHO (the process of experiencing respiratory impairment from submersion or immersion in liquid)

Exclusion criteria

* Patients who have not been immersed or submersed. * Duplets. * Interhospital transfers.

Design outcomes

Primary

MeasureTime frameDescription
Annual incidence of drowning treated by the Danish SAR helicopters from 2014-20231 yearThe incidence will be reported as the annual number of cases.
Annual incidence rate of drowning treated by the Danish SAR helicopters from 2014-20231 yearThe incidence rate as the annual number of cases per 100,000 person-years.

Secondary

MeasureTime frameDescription
Spatial distribution of drowning patients treated by the Danish SAR helicopters from 2014-2023The map will display all drowning incidents treated by the Danish SAR helicopters from 2014-2023.The spatial distribution of drowning incidents will be displayed on a map of Denmark, with each case presented with a single entry based on the geographical coordinates of the incident.

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026