Wellbeing and Stress Among Mobile Phone Dispatched Lay Responders

Karolinska Institute

Status: Terminated

Conditions: Post-traumatic Stress; Stress, Psychological

Treatments: Other: Exposure: First on scene

Study type: Observational

Funder types: Other

Identifiers

NCT04165668

Karolinskal007

Details and patient eligibility

About

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.

Full description

Please see the attacehd study protocol for details

Enrollment: 460 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

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.

Trial design

460 participants in 2 patient groups

Dispatched lay responders

Description:

Nearby mobile phone located and dispatched lay responders who reached the place of the suspected OHCA before EMS and first responders (fire and police services).

Treatment:

Other: Exposure: First on scene

Non-dispatched lay responders

Description:

Nearby mobile phone located lay responders who have neither actively, nor technically responded due to either human or technical factors.