Post-traumatic Stress, Stress, Psychological
Conditions
Brief summary
The aim of this study is to provide detailed information on state of mind, psychological wellbeing and stress for lay responders dispatched to suspected OHCA via a mobile phone application. The Heartunner system is a mobile phone positioning system for dispatch of CPR-trained lay volunteers to nearby suspected out-of-hospital cardiac arrests (OHCAs). After downloading of a mobile phone application (The Heartrunner application), and given consent of participation, the lay responders are dispatched to nearby suspected OHCA. The lay responders are either dispatched directly to the scene of the suspected OHCA to perform CPR, or to fetch the nearest AED. The location of the OHCA and available AEDs are displayed on a map, facilitated by the Heartrunner application. The Heartrunner system is studied through The SAMBA-trial on clinical outcomes for OHCA patients (ClinicalTrials.gov Identifier: NCT02992873). The psychological effects among the lay responders will be evaluated with an online survey adjacent to dispatch and after 4-6 weeks. The results of the survey will be compared both intra-individual, and to a control group of not dispatched lay responders within the Heartrunner system. Descriptive statistics regarding interventions, age, gender and former experience will also be presented.
Detailed description
Please see the attacehd study protocol for details
Interventions
OTHERExposure: First on scene
To be first on scene for resuscitation at the suspected out-of hospital cardiac arrest, before EMS and first responders (fire and police services)
Sponsors
Region Stockholm
Vastra Gotaland Region
Uppsala University
ESCAPE-NET investigators
Karolinska Institutet
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Mobile phone dispatched lay responders who reached the scene a suspected cardiac arrest. * Located lay responders who was not dispatched due to technical or human reasons (no feedback from app to system).
Exclusion criteria
* Mobile Phone Lay responders who declined the mission for dispatch to a suspected cardiac arrest. * Mobile Phone Lay responders that already answered the survey. * Mobile phone dispatched lay responders who accepted the mission but was aborted due to distance or did not reach the scene.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Level of stress at 4 weeks | At 90 minutes and 4 at weeks | Swedish Core Affect Scale (SCAS);The measure of state of mind will be done on 12 affective scales of adjective pairs that range from 1-9. For example: anxious (1) to calm (9), pessimistic (1) to optimistic (9) etc. High numbers on adjectives indicating activation, as well as measures on Anxious, tense and nervous will be regarded as (negative) stress whereas Interested engaged and optimistic will be regarded as (positive) stress. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Level of post traumatic stress symptoms | At 90 minutes and 4 at weeks | PCL checklist, short form with 6 items each ranging from 1 to 5. Max is 30 points and a positive screen is a score of ≥ 14 points. |
| Level of wellbeing | At 4 weeks | WHO index, 5 questions each ranging from 5-1 with a maximum of 100 points were higher values indicate good wellbeing. A score below 14 indicates poor wellbeing. |
Countries
Sweden
Outcome results
None listed