Fainting. No blood flow to brain causes syncope- fainting. With luck the fall causes heart to beat! At least a few til someone calls 911 and starts cpr.
Victim faints. A cardiac arrest is equal to the heart stopping. There is no blood flow to the brain and the victim faints. There are no pulses, no breathing and no verbal response or movement from the victin. If you think someone is having it, call for help and begin CPR (chest compressions) while the victim is lying flat on their back.
Very rarely. Primary cardiac arrest (not related to choking, drowning, etc) is exceedingly rare in children but can happen. Structural problems in the heart that are present at birth can predispose to lethal rhythm problems. This is one of the arguments made to place aeds (automatic external defibrillators) in schools and gymnasiums.
Yes. Sudden cardiac arrest can occur at any age.
Blood clot, atheroma. Hi. A sudden heart attack (MI) is caused when a lesion in an artery that projects into the lumen (called an atheroma, and made of inflammatory cells, cholesterol, and junk = "hardening of the arteries") has a surface exposed to the blood cells that promotes clotting. The clot (thrombus) forms and blocks the artery; no more blood gets thru. That part of the heart gets no more oxygen, and dies = MI.
Long list. Sudden cardiac death had several causes: Coronary disease or heart attack may cause sudden cardiac death, but also sudden death can occur in patients with cardiac abnormality of the heart muscle that can be detected on echo cardiogram and sometime undetected on cardiac echo, electrical genetic anomaly may cause sudden death.
Loss of Consciousnes. Loss of consciousness, not breathing, erratic (or no) pulse, paleness.
Fainting. No circulation, no pulse, drop to ground and dies. Call 911 and begin cpr! And you can save a percentage of such folks!
Nothing to say. While many patients with this problem experience an extremely brief period of dizziness and lightheadedness, possibly also some nausea just prior to loss of consciousness, they very rapidly pass out afterward. Without prompt medical attention (usually including defibrillation) they will usually not wake to tell someone about their problem.
Collapse. If standing or sitting fall down. If lying down, pulseless and a few gasps. If you see, call 911' do basic life assessment and chest compressions.
Not very common. I don't have the exact statistics, but sudden cardiac death is not a common thing across all age groups. Children are the least affected one, though, given the lower prevalence of coronary artery disease, congestive heart failure etc.
Not very, but... Long qt syndrome and chest injury can lead to sudden cardiac arrhythmias and collapse.
Not at all. The most common cause of cardiac arrest in children is due to respiratory failure.
Tough question. We know some risk factors - prolonged QT Syndrome, hypertrophic cardiomyopathy, blunt trauma to the chest, possibly SUDEP (sudden unexpected death in epilepsy), drug overdoses & cardiac complications of anorexia nervosa. Check out the CDC/NIH registry for more info: http://www. Nih. Gov/news/health/oct2013/nhlbi-24.htm.
Arrhythmia. Simple answer is an arrhythmia or sudden abnormal electrical impulses in heart. Hard answer is what causes it to happen. I agree, some risk factors include prolong QT syndrome (or iatrogenic prolong QT) and hypertrophic cardiomyopathy (ex: young athlete collapses on court). of course illicit drugs and certain prescription drug overdoses lead to arrhythmias too.
Cardiac arrest. A number of causes underlying cardiac disease like hypertrophic cardiomyopathy, arrythmogenic right heart cardiomyopathy, could be sudden clot if has a familial disposition to hypercoagulability (Leiden factor V, Protein S or C), Wolf Parkinson White rarely, Long QT syndrome (if given the wrong meds), other genetic variants as well as cocaine, amphentamines, alcohol poisoning and other drugs.
Yes. Sudden cardiac arrest is often related to an arrhythmia and can spontaneously resolve in some cases. E.G. A person passess out and regains consciousness. However, often the events is a consequence of some more serious issues (e.G heart attack, etc) and requires immediate resuscitation efforts. Immediate CPR and cardioversion is essential. When a defibrillator is not present a precordial thump.
Bystander. CPR is your best chance for survival. It raises your chances 3 fold. Learn cpr. That way when the paramedics arrive you have a chance.
It happens. Blow to the chest, hypertrophy, lqts and Marfan syndrome are all possible causes.
ECHO. The best single test to stratify risk for cardiac arrest is an echocardiogram. Of course there are other factors that you should discuss with your cardiologist.