Quality of Cardiopulmonary Resuscitation Without and With Defibrillator Feedback

• Sponsor: University of Oslo (Other)
• Overall Status: Completed
• CT.gov ID: NCT00138996
• Collaborator: Laerdal Medical (Industry), Ullevaal University Hospital (Other), Health Region East, Norway (Other), Norwegian Air Ambulance Foundation (Other), London Ambulance Service (Other), Stockholm Ambulance Service (Other), University of Chicago (Other)
• Enrollment: 300
• Locations: 3
• Duration (Months): 51
• Patients Per Site: 100
• Patients Per Site Per Month: 2

Study Details

Study Description

Brief Summary

Quality of bystander cardiopulmonary resuscitation (CPR) affect patient survival. Quality of professional CPR on patients has not been studied in detail, but it is regularly reported that the quality when tested on manikins deteriorates dramatically within months after training. Automated direct feedback on CPR quality from manikins brings quality back within a couple of minutes. Similar feedback has been incorporated into a defibrillator which also monitors quality of CPR. We hypothesise that quality of professional clinical CPR improves with such feedback

Condition or Disease	Intervention/Treatment	Phase
Cardiac Arrest	Device: automated direct feedback on CPR from defibrillator	Phase 2

Detailed Description

Defibrillators which monitor quality of CPR via changes in thoracic impedance (for ventilation) and movement of the sternum employing an accelerometer (for chest compressions) will be employed in ambulances in Akershus county (Norway), Stockholm (Sweden) and London (UK). During phase 1 quality of CPR will be monitored without feedback from the defibrillator. During phase 2 the ambulance personnel will receive feedback via the defibrillator. During phase 3 the ambulance personnel will be retrained with particular attention to the quality problems that became apparent in phase 3.

Quality of CPR will be continuously recorded by the defibrillators and the data collected and sent via internet to Laerdal Medical. All other cardiac arrest data including survival will be recorded using standard datasets for cardiac arrest research as developed by a task force with members from the organisations in International Liaison Committee on resuscitation (Utstein guidelines). The data will be annotated and analyzed in detail by researchers at University of Oslo

Study Design

• Study Type: Interventional
• Allocation: Non-Randomized
• Intervention Model: Single Group Assignment
• Masking: None (Open Label)
• Primary Purpose: Treatment
• Official Title: Can the Quality of Cardiopulmonary Resuscitation Improve With Direct Online Feedback From the Defibrillator to the Rescuers on Their Resuscitation Efforts
• Study Start Date: Mar 1, 2002
• Actual Study Completion Date: Jun 1, 2006

Outcome Measures

Primary Outcome Measures

1. fraction of time without CPR []

2. chest compression depth []

3. chest compression frequency []

4. chest compression/decompression duty cycle []

5. ventilation frequency []

Secondary Outcome Measures

1. rate of return of spontaneous circulation []

Eligibility Criteria

Criteria

• Ages Eligible for Study: 18 Years and Older
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Inclusion Criteria:

• Cardiac arrest out-of-hospital

Exclusion Criteria:

• < 18 years old

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Ulleval University Hospital	Oslo		Norway	N-0407
2	Stockholm Ambulance Service	Stockholm		Sweden
3	London Ambulance Service	London		United Kingdom

Sponsors and Collaborators

• University of Oslo
• Laerdal Medical
• Ullevaal University Hospital
• Health Region East, Norway
• Norwegian Air Ambulance Foundation
• London Ambulance Service
• Stockholm Ambulance Service
• University of Chicago

Investigators

• Principal Investigator: Petter A Steen, University of Oslo, Ulleval University Hospital

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.

• ClinicalTrials.gov Identifier: NCT00138996
• Other Study ID Numbers: 402-01139; 2002-OSL-MDD-0009 (DNVeritas)
• First Posted: Aug 30, 2005
• Last Update Posted: Aug 27, 2007
• Last Verified: Aug 1, 2007

• Keywords provided by , ,: cardiac arrest; resuscitation; quality; feedback; training
• Additional relevant MeSH terms: Heart Arrest

Study Results

No Results Posted as of Aug 27, 2007