Effectiveness of Video-assisted Cardiopulmonary Resuscitation

Study Overview
=================
Brief Summary
-----------------
Sudden cardiac arrest is a major public health problem worldwide and it is one of the leading causes of death in industrialized countries. Emergency Medical Services (EMS) dispatchers play an important role to recognize cardiac arrest and give help to the lay first responder via telephone CPR (T-CPR) which improves survival rates. The current technology allows the live video connection between the scene and the dispatcher which provides the opportunity for video-assisted CPR (V-CPR) via the bystander smartphone. Effectiveness of V-CPR has only been investigated to a limited extent. Comparing effectiveness of V-CPR (effectiveness of chest compression, time parameters eg. time to first chest compression) to T-CPR and non-instructed CPR can be useful to implement V-CPR technology.

Detailed Description
-----------------
Sudden cardiac arrest is a major public health problem worldwide and it is one of the leading causes of death in industrialized countries. EMS dispatchers play an important role to recognize cardiac arrest and give help to the lay first responder via telephone CPR (T-CPR) which improves survival rates. The current technology allows the live video connection between the scene and the dispatcher which provides the opportunity for video-assisted CPR (V-CPR) via the bystander smartphone. Effectiveness of V-CPR has only been investigated to a limited extent. Comparing effectiveness of V-CPR (quality of chest compressions: depth, rate, hand position), time parameters: time to recognize cardiac arrest, time of check breathing, total no-flow time, to first chest compression) to T-CPR and non-instructed CPR can be useful to implement V-CPR technology.

Official Title
-----------------
Is Video-assisted Cardiopulmonary Resuscitation More Effective Than Telephone-assisted or Not-instructed Cardiopulmonary Resuscitation by Laypeople? - a Randomized Controlled Simulation Study

Conditions
-----------------
Cardiac Arrest

Intervention / Treatment
-----------------
* Other: Video-assisted CPR
* Other: Telephone-assisted CPR


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: healthy volunteer Exclusion Criteria: healthcare professionals (paramedics, nurses, etc.) pregnant women people with cardio-pulmonary and musculoskeletal diseases or any other impairment that would risk harm for the volunteer while performing CPR for 2 minutes psychological disabilities

Ages Eligible for Study
-----------------
Minimum Age: 18 Years
Maximum Age: 30 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: T-CPR<br>Participants perform telephone-assisted CPR based on the European Resuscitation Council (ERC) 2021 guidelines. | Other: Video-assisted CPR<br>* Participants in V-CPR group get video-based (vocal and visual) instructions from the dispatcher.<br>Other: Telephone-assisted CPR<br>* Participants in T-CPR group get voice-based (vocal) instructions from the dispatcher.<br>|
| Experimental: V-CPR<br>Participants perform video-assisted CPR based on the European Resuscitation Council (ERC) 2021 guidelines. | Other: Video-assisted CPR<br>* Participants in V-CPR group get video-based (vocal and visual) instructions from the dispatcher.<br>Other: Telephone-assisted CPR<br>* Participants in T-CPR group get voice-based (vocal) instructions from the dispatcher.<br>|
| No Intervention: Unassisted CPR<br>CPR without dispatcher instructions. | |

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Quality of chest compressions (depth of chest compressions). | Chest compression depth will be evaluated by a manikin connected to a CPR software. | During procedure | 
| Quality of chest compressions (rate of chest compressions). | Chest compression rate will be evaluated by a manikin connected to a CPR software. | During procedure | 
| Quality of chest compressions (hand position of chest compressions). | Hand position during chest compression will be evaluated by observation. | During procedure | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time factors of CPR | Measuring the time of check breathing, time to recognize cardiac arrest, time to first chest compression, and cumulative time of no-flow time by the CPR software and observation. | During procedure | 
| Attitude of bystanders. | Subjective feelings after performing CPR based on a short survey using Likert-scale based queries (lower numbers indicate worse, higher score indicates better opinion). | Immediately after the CPR procedure (within 15 minutes) |