Cardiac arrest is the number one cause of death in Canada. It is often the first symptom of cardiac disease for the victims. Eighty-five percent of victims collapse in their own home. Fifty percent collapse in the presence of a family member. Bystander cardiopulmonary resuscitation (CPR) can improve the chance to survive a cardiac arrest by three to four times, but needs to be started quickly. In most communities, less than 30% of victims receive CPR before the ambulance arrives. Currently, only 8% of cardiac arrest victims can leave the hospital alive. Many things have been tried to improve the number of times people do CPR. So far, the only thing that really increased the number of times that someone did CPR is when 9-1-1 attendants started to give CPR instructions to callers over the phone. The only problem is that about 25% of cardiac arrest victims gasp for air in the first few minutes. This can fool the 9-1-1 callers and attendants into thinking that the victim is still alive. The investigators have looked at all the studies on how to help 9-1-1 attendants to recognize abnormal breathing over the phone. The investigators have also learned what should be taught after finishing a large survey with 9-1-1 attendants from across Canada. This survey was done with the help of psychologists and other education experts. It measured the impact of attitudes, social pressures, and 9-1-1 attendants' perceived control over their ability to recognize abnormal breathing and cardiac arrest. Then the investigators developed a teaching tool which helped Ottawa 9-1-1 attendants recognize abnormal breathing. When they could do that, they could also recognize more cardiac arrest. The main goal of this project is to use the tool developed in Ottawa in more centres to help 9-1-1 attendants save the lives of even more cardiac arrest victims across Canada.
Study Type
OBSERVATIONAL
Enrollment
12,224
Additional training provided to ambulance telecommunicators in participating sites to help increase recognition of agonal breathing in the presence of out-of-hospital cardiac arrest.
Emergency Medical Care Inc.
Dartmouth, Nova Scotia, Canada
Overall Survival
Accessing hospital medical records or coroner's reports, assess survival of cardiac arrest victim as being discharged alive from hospital.
Time frame: Change between 12 month period before and after delivery of additional education to ambulance telecommunicators
Community Bystander Cardiopulmonary Resuscitation Rate
The first member of the emergency response team to arrive at the scene will document whether or not chest compressions have been initiated by someone prior to the arrival of the emergency team.
Time frame: Change between 12 month period before and after delivery of additional education to ambulance telecommunicators
Telecommunication-assisted CPR instructions rate
By reviewing audio recordings, determine the cases where telecommunicator assistance led to delivery of chest compressions
Time frame: Change between 12 month period before and after delivery of additional education to ambulance telecommunicators
Presence of agonal breathing
Document the presence or absence of agonal breathing through review of audio recording.
Time frame: Change between 12 month period before and after delivery of additional education to ambulance telecommunicators
Cardiac arrest recognition rate
Time frame: at time of event
Time intervals
call receipt to recognition of cardiac arrest, time to CPR instructions initiated
Time frame: Change between 12 month period before and after delivery of additional education to ambulance telecommunicators
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