Bradycardia (slow heart rates) occurred more frequently than ventricular tachycardia (abnormal and dangerous rapid or chaotic heart
rhythms): In the study, 19 of 50 patients had at least one bradycardia episode (with a rate of 26 bradycardia events per patient month); there were only two sustained ventricular arrhythmia episodes during the follow-up.
Most episodes are caused by a rapid and/or chaotic heart
beat or ventricular fibrillation (the uncoordinated contraction of the cardiac muscle of the ventricles of the heart).
45am, medics gathered by her bed noticed a chaotic heart
rhythm on a monitor and checked Savita's pulse.
The causes of the chaotic heart
rhythms associated with atrial fibrillation (AFib) appear to be sources in the heart that look like tiny, electrical spinning tops or "rotors," according to a study out of UCLA and two other institutions.
These devices can shock a heart out of ventricular fibrillation, a fast, chaotic heart
rate that leads to cardiac arrest.
Heart attacks can trigger a chaotic heart
rhythm called ventricular fibrillation and lead to sudden cardiac arrest.
Ventricular fibrillation, a condition of chaotic heart
activity, causes most SCA episodes.
They were told the twins - and 41-year-old Mary Ann - suffered from Long QT Syndrome (LQTS), a rare abnormality of the heart's electrical system which brings on rapid, chaotic heart
rhythms (arrhythmia) and can lead to sudden loss of consciousness and, sometimes, may cause sudden cardiac death.
Each year in the United States, more than 250,000 sudden cardiac deaths - or an abrupt loss of heart function such as a massive heart attack - are caused by the rapid or chaotic heart
activity known as fibrillation, which is a type of arrhythmia, according to the American Heart Association.
Heart Attack Sudden Cardiac Arrest Cause: Reduced blood supply Cause: Chaotic heart
rhythm to heart muscle Symptoms: Chest discomfort Symptoms: Sudden loss of Discomfort in other areas of consciousness the upper body No normal breathing Shortness of breath No signs of circulation Cold sweat, nausea, No signs of movement or lightheadedness coughing Treatment: Get to a hospital Treatment: Call 911 right away Begin CPR and use an AED Weigh options to reopen blocked arteries