Video Emergency Calls of Bystanders

October 1, 2025 updated by: Christina Hafner, Medical University of Vienna

Video Emergency Calls of Bystanders - a Simulation Study

Emergency center dispatchers often face the challenge that emergency calls typically provide only verbal information. However, many first responders use smartphones, which could enable the option for video calls during emergencies. Leveraging this technology could offer control center staff additional insights, potentially transforming the way they manage emergency situations. Despite this, the impact of video emergency calls on call duration and user experience remains largely unexplored.

In this project, 20 control center employees will undergo a one-hour training session on a video emergency call system. After the training, each dispatcher will handle four simulated emergency calls-two via audio and two via video. To facilitate this, 80 first responders will be recruited from public spaces, such as shopping centers. These responders will face simulated emergencies, including epileptic seizures, shortness of breath, forehead lacerations, or injuries to the upper extremities with minor bleeding. Professional medical actors will simulate the emergencies, and the responders will be tasked with making either an audio or video emergency call.

Study Overview

Study Type

Interventional

Enrollment (Actual)

80

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Vienna, Austria, 1090
        • Medical University of Vienna

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • 18-70 years
  • User of a smartphone
  • German Language

Exclusion Criteria:

  • EMS personnel

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Sham Comparator: Audio Emergency Call
An Emergency Call will be performed
Audio Emergency Call
Active Comparator: Video-Emergency Call
Video Emergency Call using a webbased platform

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Duration of the Emergency Call
Time Frame: Up to 10 Minutes
Up to 10 Minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 16, 2024

Primary Completion (Actual)

October 31, 2024

Study Completion (Actual)

February 28, 2025

Study Registration Dates

First Submitted

September 11, 2024

First Submitted That Met QC Criteria

September 14, 2024

First Posted (Actual)

September 19, 2024

Study Record Updates

Last Update Posted (Estimated)

October 2, 2025

Last Update Submitted That Met QC Criteria

October 1, 2025

Last Verified

September 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Video-Emergency-Call

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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