The Emergency Call on Drowning

Status Not yet recruiting

Clinical Trial Summary

This study aims to 1) describe patient-, setting-, and dispatcher-related characteristics in drowning-related emergency calls to the Emergency Medical Dispatch Centre (1-1-2 emergency phone) and 2) factors associated with 30-day survival. The investigators will separately analyse drowning-related out-of-hospital cardiac arrest (OHCA) and drowning-related non-OHCA. If feasible, the investigators will qualitatively analyse the calls to identify and describe potential barriers for an optimal handling strategy.

Clinical Trial Description

Previous studies have explored emergency priority levels, emergency call categorisations, barriers to assessing an emergency call, and the effects on the outcome. However, this has never been done specifically for drowning patients. Drowning presents a rare and special circumstance that may be particularly complex for laypeople and medical dispatchers for several reasons. Despite this complexity and medical dispatchers' potential to optimize treatment and improve outcomes in drowning incidents, the characteristics of drowning-related emergency calls have never been explored. This protocol presents a registry-based cohort study of drowning-related emergency medical calls to the EMDC (1-1-2 emergency phone) with 30-day follow-up. Data from the national Danish Prehospital Drowning Data will be linked with audio files and electronic data from the EMDC database using the patient's unique civil registration numbers. The investigators will construct two lists of variables: one list for OHCA and one for non-OHCA emergency calls. Data collection from the EMDC database will consist of three phases. In phase 1, three independent reviewers will listen to 20 emergency calls on drowning (10 OHCA and 10 non-OHCA) to identify relevant variables from the calls (e.g., presence of key symptoms [since an emergency call often does not contain information regarding the absence of symptoms], communication barriers [anything that comes in the way of receiving and understanding information], pre-arrival instructions to callers etc.). In phase 2, the same reviewers will listen to 20 other emergency calls (10 OHCA and 10 non-OHCA) and use the lists for data collection to determine the data availability and completeness. This may result in modifications to the lists of variables. The investigators will use the results as a basis for reviewer training and calculate inter-rater reliability. Once the reviewers' performances are satisfying (defined as Fleiss kappa ≥0.8), the investigators will move to phase 3 and collect data for all the drowning calls. Emergency calls will be stratified as OHCA or non-OHCA calls. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT06310486
Study type	Observational
Source	Prehospital Center, Region Zealand
Contact	Niklas Breindahl, MD
Phone	+4528566410
Email	niklas.breindahl@gmail.com
Status	Not yet recruiting
Phase
Start date	May 1, 2024
Completion date	December 31, 2025

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

The Emergency Call on Drowning — DROWN_CALL

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms