Genetics

New screening test for those at risk of sudden cardiac arrest

New research from the Victor Chang Cardiac Research Institute will allow families around the world to discover if they are carrying genetic mutations that cause sudden cardiac arrest—a condition that kills 9 out of 10 victims.

Cardiology

Prediabetes linked to higher heart attack risk in young adults

Young adults with higher than normal blood sugar levels that signal prediabetes were more likely to be hospitalized for heart attack compared to their peers with normal blood sugar levels, according to in preliminary research ...

Cardiology

New cardiac defibrillator much safer for patients

High-risk patients who need defibrillators to prevent cardiac arrest can experience fewer complications with a type of device implanted under the skin, a Canadian study has found.

Medications

Providing naloxone in the emergency department can save lives

Overdose deaths continue to be a national tragedy. More than 800,000 Americans died from an overdose between 1999–2019, and the annual rate of overdoses has increased dramatically during the pandemic, according to the latest ...

Cardiology

AI predicts if—and when—someone will have cardiac arrest

A new artificial intelligence-based approach can predict, significantly more accurately than a doctor, if and when a patient could die of cardiac arrest. The technology, built on raw images of patient's diseased hearts and ...

Psychology & Psychiatry

Recalled experiences surrounding death: More than hallucinations?

Scientific advances in the 20th and 21st centuries have led to a major evolution in the understanding of death. At the same time, for decades, people who have survived an encounter with death have recalled unexplained lucid ...

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Cardiac arrest

A cardiac arrest, also known as cardiopulmonary arrest or circulatory arrest, is the abrupt cessation of normal circulation of the blood due to failure of the heart to contract effectively during systole.

A cardiac arrest is different from (but may be caused by) a heart attack or myocardial infarction, where blood flow to the still-beating heart is interrupted (as in cardiogenic shock).

"Arrested" blood circulation prevents delivery of oxygen to all parts of the body. Cerebral hypoxia, or lack of oxygen supply to the brain, causes victims to lose consciousness and to stop normal breathing, although agonal breathing may still occur. Brain injury is likely if cardiac arrest is untreated for more than five minutes, although new treatments such as induced hypothermia have begun to extend this time. To improve survival and neurological recovery immediate response is paramount.

Cardiac arrest is a medical emergency that, in certain groups of patients, is potentially reversible if treated early enough (See "reversible causes" below). When unexpected cardiac arrest leads to death this is called sudden cardiac death (SCD). The primary first-aid treatment for cardiac arrest is cardiopulmonary resuscitation (commonly known as CPR) which provides circulatory support until availability of definitive medical treatment, which will vary dependent on the rhythm the heart is exhibiting, but often requires defibrillation.

This text uses material from Wikipedia, licensed under CC BY-SA