Accidental Hypothermia in Drowning-related OHCA

Status Completed

Clinical Trial Summary

This study aims to report mortality and neurological outcome 180 days after drowning incident in patients with accidental hypothermia vs normothermia following drowning-related OHCA in Denmark during a six-year period from 2016-2021.

Clinical Trial Description

The incidence of accidental hypothermia in patients with out-of-hospital cardiac arrest (OHCA) due to drowning is prevalent. Accidental hypothermia is known to decrease oxygen consumption and hypoxic brain damage in patients with OHCA, but may result from prolonged submersion times, which is shown to increase drowning mortality and morbidity. However, many case reports present extraordinary instances of hypothermic patients with drowning-related OHCA surviving with a good neurological outcome despite prolonged submersion times. A larger, retrospective study is warranted to accurately investigate the role of accidental hypothermia in patients with drowning-related OHCA. This study is a nationwide, retrospective cohort study with 180-days follow-up from 2016-2021 comparing survival and neurological outcome 180 days after drowning incident in normothermic (≥35C) vs hypothermic (<35C) patients with drowning-related OHCA. A total of 317 patients have been identified by the Danish Drowning Formula and manually validated (Breindahl et al, 2023, unpublished data). Prehospital data from the DCAR will be linked to in-hospital data using the patients' unique civil registration number and presented the "Utstein style". The primary outcome is composite of mortality or poor neurological outcome 180 days after drowning incident (modified Rankin Scale score > 3). Secondary outcomes include hospital length of stay (continuous), intensive care unit admission (binary) and length of stay (continuous), need for ECLS (binary) and duration (continuous), need for mechanical ventilation (binary) and duration (continuous), survival to hospital discharge, and 30-day survival. The investigators expect to provide evidence on the role of accidental hypothermia in drowning-related OHCA to support evidence-based guidelines and improve clinical decision-making in the future. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05908630
Study type	Observational
Source	Prehospital Center, Region Zealand
Contact
Status	Completed
Phase
Start date	October 1, 2023
Completion date	March 1, 2024

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