Sudden and unexpected heart-related deaths in children are most common during their teenage years, according to research from the UK's national cardiac pathology referral center at City St George's, University of London.
May 8, 2025
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A new study identifying 56 non-clinical risk factors associated with sudden cardiac arrest (SCA), spanning lifestyle, physical measures, psychosocial factors, socioeconomic status, and the local environment, offers compelling ...
Apr 29, 2025
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People with a certain heart valve abnormality are at increased risk of severe heart rhythm disorders, even after successful valve surgery. This is according to a new study, "Mitral annular disjunction and mitral valve prolapse: ...
Apr 15, 2025
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Cardiac deaths increase significantly during compound heat waves—heat waves where temperatures are elevated both during the day and overnight—according to a new study in Journal of the American College of Cardiology. ...
Apr 1, 2025
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The overall survival rate of athletes who suffer sudden cardiac arrest has improved over the past decade, but the likelihood of surviving varies by race, where the cardiac arrest occurred and what athletes were doing when ...
Mar 31, 2025
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A new study by St. Michael's Hospital researchers shows that middle-aged men are the demographic most at risk for sudden cardiac arrest while playing sports, and there are ways to improve outcomes for people who experience ...
Mar 25, 2025
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Sudden cardiac arrest may occur in various conditions when someone, while active (playing basketball or walking with friends), collapses and passes out. Their blood pressure drops, and often their heart stops. This may be ...
Dec 5, 2024
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A recent major review of data published by The Lancet and led by Emory sports cardiologist Jonathan Kim, MD, shows that Black athletes are approximately five times more likely to experience sudden cardiac arrest (SCA) and ...
Nov 28, 2024
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Most cases of cardiac arrest during sport are likely to be preventable. In addition, the emergency response with cardiopulmonary resuscitation (CPR) and defibrillators within the sports context can be improved. This has been ...
Nov 19, 2024
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More than half of all people who experience sudden cardiac arrest outside of hospital don't receive immediate cardiopulmonary resuscitation (CPR). As a result, 9 out of 10 times they die. Yet it takes just 90 seconds to learn ...
Oct 16, 2024
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Cardiac arrest, (also known as cardiopulmonary arrest or circulatory arrest) is the cessation of normal circulation of the blood due to failure of the heart to contract effectively. Medical personnel can refer to an unexpected cardiac arrest as a sudden cardiac arrest or SCA.
A cardiac arrest is different from (but may be caused by) a heart attack, where blood flow to the muscle of the heart is impaired.
Arrested blood circulation prevents delivery of oxygen to the body. Lack of oxygen to the brain causes loss of consciousness, which then results in abnormal or absent breathing. Brain injury is likely if cardiac arrest goes untreated for more than five minutes. For the best chance of survival and neurological recovery, immediate and decisive treatment is imperative.
Cardiac arrest is a medical emergency that, in certain situations, is potentially reversible if treated early. When unexpected cardiac arrest leads to death this is called sudden cardiac death (SCD). The treatment for cardiac arrest is cardiopulmonary resuscitation (CPR) to provide circulatory support, followed by defibrillation if a shockable rhythm is present. If a shockable rhythm is not present after CPR and other interventions, clinical death is inevitable.
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