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Drowning Incidents Treated by the Danish SAR Helicopters

NCT ID: NCT06322134

Last Updated: 2024-12-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

247 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-01-01

Study Completion Date

2024-10-31

Brief Summary

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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

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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.

Conditions

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

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Fatal drowning

Prehospital mortality following a drowning incident, defined as a dichotomous variable (dead or alive) evaluated at case termination. Patients admitted to the hospital with cardiac arrest were considered fatal drowning incidents in this study.

Drowning incident

Intervention Type OTHER

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.

Non-fatal drowning

Drowning incidents where the patient had spontaneous circulation at hospital admission.

Drowning incident

Intervention Type OTHER

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.

Interventions

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Drowning incident

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.

Intervention Type OTHER

Eligibility Criteria

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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.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Danish Defence

UNKNOWN

Sponsor Role collaborator

Prehospital Center, Region Zealand

OTHER

Sponsor Role lead

Responsible Party

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Niklas Breindahl

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Helle Collatz Christensen, Ass. Prof.

Role: STUDY_DIRECTOR

Prehospital Center, Region Zealand

Locations

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Prehospital Center

Næstved, Region Sjælland, Denmark

Site Status

Countries

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Denmark

References

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Breindahl N, Wolthers SA, Jensen TW, Holgersen MG, Blomberg SNF, Steinmetz J, Christensen HC; Danish Cardiac Arrest Group. Danish Drowning Formula for identification of out-of-hospital cardiac arrest from drowning. Am J Emerg Med. 2023 Nov;73:55-62. doi: 10.1016/j.ajem.2023.08.024. Epub 2023 Aug 15.

Reference Type BACKGROUND
PMID: 37619443 (View on PubMed)

Breindahl N, Wolthers SA, Moller TP, Blomberg SNF, Steinmetz J, Christensen HC; Danish Drowning Validation Group. Characteristics and critical care interventions in drowning patients treated by the Danish Air Ambulance from 2016 to 2021: a nationwide registry-based study with 30-day follow-up. Scand J Trauma Resusc Emerg Med. 2024 Mar 6;32(1):17. doi: 10.1186/s13049-024-01189-y.

Reference Type BACKGROUND
PMID: 38448994 (View on PubMed)

Other Identifiers

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DROWN_SAR

Identifier Type: -

Identifier Source: org_study_id