Health
"Double shock" from two defibrillators could save more lives
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The first-of-its-kind study included 4000 Ontario paramedics over four years
TORONTO, Nov. 7, 2022 /CNW/ – A new study funded by Heart & Stroke, and published in the New England Journal of Medicine (NEJM), suggests that using two defibrillators to deliver a sequential or “double” shock to the heart and switching standard pad positions by first responders could improve survival for those experiencing cardiac arrest.
Dr. Sheldon Cheskes, a Heart & Stroke funded researcher, and Professor of Emergency Medicine in the Department of Family and Community Medicine at the University of Toronto, and his team conducted the four-year trial across six paramedic services in Ontario, which included 4000 paramedics. The study, presented at the American Heart Association Resuscitation Science Symposium – Late Breaking Trials, compared two novel techniques to standard care for patients receiving care from paramedics involved in the trial. All patients who remained in ventricular fibrillation (VF) after 3 shocks, using standard defibrillation techniques, continued to receive defibrillation using standard defibrillation techniques or one of the following strategies:
- One technique, double sequential external defibrillation (DSED), involved applying a second set of pads from a second defibrillator to the patient and sequentially shocking the patient using the two defibrillators.
- The second technique, vector change defibrillation (VC Defibrillation), involved changing the standard pad position known as anterior-lateral pad to anterior-posterior pads.
Remarkably, DSED was found to significantly improve both survival and neurological outcomes while vector change defibrillation improved survival when compared to the current standard of care. Survival to hospital discharge was 30.4% in the DSED group compared to 21.7% in the vector change group and 13.3% in the standard care group. These findings are most notable for first responders when standard methods of external defibrillation are ineffective.
“I am so proud of the paramedics who were trained and took part in the trial, as they clearly demonstrated that these new strategies could improve outcomes for these patients,” says Dr. Cheskes, who is also a scientist at St. Michael’s Hospital, a site of Unity Health Toronto. “This trial has the potential to change practice around the world while saving the lives of patients sustaining refractory ventricular fibrillation.”
An estimated 35,000 out of hospital cardiac arrests happen each year in Canada. This means, on average, one cardiac arrest every 15 minutes. Cardiac arrest can strike anyone, anywhere, anytime, at any age, without warning.
Currently, 80% of cardiac arrests occur outside of a hospital setting and nine in ten of these people do not survive. Performing CPR and using AED on a person experiencing cardiac arrest can double their chance of survival.
“Heart & Stroke is proud to be funding such important research, a first-of-its kind in the world, right here in Canada,” says Diego Marchese, Executive Vice President, Research, at Heart & Stroke. “Dr. Cheskes’ findings are promising to improve methods for first responders who administer defibrillation and ultimately save more lives.”
Since 2010, Heart & Stroke, together with funding partners, has placed more than 15,000 AEDs in communities across Canada. We have also taught millions of Canadians the simple life-saving steps of CPR.
About Heart & Stroke
Life. We don’t want you to miss it. That’s why Heart & Stroke has been leading the fight to beat heart disease and stroke for 70 years. We must generate the next medical breakthroughs, so Canadians don’t miss out on precious moments. Together, we are working to prevent disease, save lives and promote recovery through research, health promotion and public policy. Heartandstroke.ca @heartandstroke
SOURCE Heart and Stroke Foundation
For further information: Alicia D’Aguiar, [email protected], 647-426-8410
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Alberta Health Services (AHS) has confirmed a case of measles in Edmonton, and is advising the public that the individual was out in public while infectious.
Measles is an extremely contagious disease that is spread easily through the air, and can only be prevented through immunization.
AHS says individuals who were in the following locations during the specified dates and times, may have been exposed to measles.
- April 16
- Edmonton International Airport, international arrivals and baggage claim area — between 3:20 p.m. and 6 p.m.
- April 20
- Stollery Children’s Hospital Emergency Department — between 5 a.m. to 3 p.m.
- April 22
- 66th Medical Clinic (13635 66 St NW Edmonton) — between 12:15 p.m. to 3:30 p.m.
- Pharmacy 66 (13637 66 St NW Edmonton) — between 12:15 p.m. to 3:30 p.m.
- April 23
- Stollery Children’s Hospital Emergency Department — between 4:40 a.m. to 9:33 a.m.
AHS says anyone who attended those locations during those times is at risk of developing measles if they’ve not had two documented doses of measles-containing vaccine.
Those who have not had two doses, who are pregnant, under one year of age, or have a weakened immune system are at greatest risk of getting measles and should contact Health Link at 1-877-720-0707.
Symptoms
Symptoms of measles include a fever of 38.3° C or higher, cough, runny nose, and/or red eyes, a red blotchy rash that appears three to seven days after fever starts, beginning behind the ears and on the face and spreading down the body and then to the arms and legs.
If you have any of these symptoms stay home and call Health Link.
In Alberta, measles vaccine is offered, free of charge, through Alberta’s publicly funded immunization program. Children in Alberta typically receive their first dose of measles vaccine at 12 months of age, and their second dose at 18 months of age.
Health
U.S. tightens rules for dairy cows a day after bird flu virus fragments found in pasteurized milk samples – Toronto Star
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Infected cows were already prohibited from being transported out of state, but that was based on the physical characteristics of the milk, which looks curdled when a cow is infected, or a cow has decreased lactation or low appetite, both symptoms of infection.
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