Contact information
Type
Scientific
Primary contact
Dr Raphael van Tulder
ORCID ID
Contact details
Department of Emergency Medicine
Medical University Vienna
General Hospital Vienna
Waehringerguertel 18-20/ 6D
Vienna
1090
Austria
+43 (0)1 40400 1964
raphael.van-tulder@meduniwien.ac.at
Additional identifiers
EudraCT number
ClinicalTrials.gov number
Protocol/serial number
V1.4
Study information
Scientific title
Compression Only CardioPulmonary Resuscitation CPR (COCPR) in telephone assisted bystanders: is "to push hard as you can", superior in achieving 5 - 6 cm chest compression depth than the current guideline recommendation? A randomised parallel-group simulation study
Acronym
COCPR
Study hypothesis
Recommending to "push hard as you can" in adult cardiopulmonary resuscitation (CPR) is more effective to reach target depth of 5 - 6 cm.
Ethics approval
Ethics Committee of the Medical University of Vienna approved on the 11th January 2011
Study design
Randomised parallel group simulation study
Primary study design
Interventional
Secondary study design
Randomised controlled trial
Trial setting
Other
Trial type
Treatment
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet
Condition
Cardiopulmonary resuscitation
Intervention
The scenario is planned as an out of hospital, telephone assisted, bystander CPR. Substantial information about circumstances (at home, compression only, telephone assisted bystander CPR) is given prior to participant. Outcome is blinded to the participants. After informed consent, participants are guided to a simulation room where the manikin is prepared. Only minimal study staff will have access to the scenario room to avoid distractions. Study staffs assignment is documentation of parameters and not to be involved into bystander CPR. Participants will be staffed with a telephone to call the Emergency Dispatch Center (EDC). In the EDC, a professional emergency dispatcher will be providing verbal prompts via telephone to the bystander. The EMD is randomised to give two different verbal commands: "compress with 5 cm" or "push as hard as you can". The EMD has to open one opaque envelope per call to be randomised in either control or intervention. Therefore study staff are also blinded to allocation of the bystander.
Verbal prompts, given by the EMD, are following the AMPDS protocol V12.0 for control, advising to "push 5 cm".
For the intervention a slightly adopted AMPDS protocol will be advising "push as hard as you can". No other changes will be made onto the protocol.
Another predefined precondition is that all bystanders are denying rescue breaths. Every participant is performing closed-chest compression for 10 minutes on a slightly modified Resusci Anne® Manikin (Laerdal, Norway). Data will be collected using the Laerdal® PC Skill-Reporting System - a software used with the adult size Laerdal® Resusci® Anne SkillReporterTM manikin to collect the subjects' CPR performance.
Intervention type
Other
Phase
Not Applicable
Drug names
Primary outcome measures
Chest compression depth, measured continously via the pc skillmeter software of the resusci anne skillmeter
Secondary outcome measures
1. Quality of ECC defined as number of percent of adequately achieved compression depth, continously assesed via skillmeter pc
2. Time to measurable decay in chest compression depth, continously assesed via skillmeter pc
3. Frequency of chest compression, continously assesed via skillmeter pc
4. Correct recoiling of the manikins chest, continously assesed via skillmeter pc
5. Heart rate/systolic blood pressure ratio reflecting physical strain, measured before and immediately after chest compression
6. BORG rate of perceived exertion measured at 2nd, 4th, 6th and 10th minute of chest compressions
7. Serum lactate changes
8. Systolic and diastolic blood pressure
9. Nine Hole Peg Test, measured before and immediately after chest compression
Overall trial start date
03/03/2011
Overall trial end date
03/03/2011
Reason abandoned
Eligibility
Participant inclusion criteria
1. Voluntary participants, first aid course completed or not
2. Informed consent
3. Aged greater than 18 years
4. Blood pressure less than 150 mmHg before starting CPR
Participant type
Patient
Age group
Adult
Gender
Both
Target number of participants
24
Participant exclusion criteria
1. Health care professionals
2. Pregnancy
3. Blood pressure greater than 150 mmHg (systolic) before CPR simulation
Recruitment start date
03/03/2011
Recruitment end date
03/03/2011
Locations
Countries of recruitment
Austria
Trial participating centre
Department of Emergency Medicine
Vienna
1090
Austria
Sponsor information
Organisation
Individual Sponsor (Austria)
Sponsor details
c/o Associate Professor Harald Herkner
MD
MSc
Clinical Epidemiologist
Department of Emergency Medicine
Waehringer Guertel 18-20
Vienna
1090
Austria
+43 (0)1 40400 1964
harald.herkner@meduniwien.ac.at
Sponsor type
Other
Website
Funders
Funder type
Industry
Funder name
RORACO GmBH (Austria)
Alternative name(s)
Funding Body Type
Funding Body Subtype
Location
Results and Publications
Publication and dissemination plan
Not provided at time of registration
Intention to publish date
Participant level data
Not provided at time of registration
Results - basic reporting
Publication summary