shockable rhythm


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Related to shockable rhythm: AED, Automated external defibrillator

shockable rhythm

In emergency cardiac care, any of the following cardiac rhythm disturbances: ventricular fibrillation, pulseless ventricular tachycardia or some poorly tolerated supraventricular tachycardias, e.g., some instances of rapid atrial fibrillation, atrial flutter, or AV nodal re-entrant tachycardia. By contrast, asystole, pulseless electrical activity, heart blocks, and the bradycardias are not shockable. Defibrillation or cardioversion of these latter rhythms may result in injury to the patient.
See also: rhythm
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References in periodicals archive ?
ROSC positivity and good neurological outcome rate of the patients having shockable rhythms was 48(76.2%) and 8(12.7%), respectively (Table-3)
The timing will affect medical opinions regarding when the victim experienced a shockable rhythm, as well as when, within reasonable medical probability, AED intervention would have saved him or her from brain damage or death.
"In contrast to published adult IHCA and pediatric out-of-hospital cardiac arrest data, no significant association was observed between time to first defibrillation attempt in pediatric IHCA with a first documented shockable rhythm and survival to hospital discharge," the authors write.
The mortality rates in patients with shockable rhythms and non-shockable rhythms were 40.8% and 39.7%, respectively (Hazard ratio: 1.06, 95% GA: 0.84-1.34).
In the literature, it is reported that asystoly is more common than shockable rhythms (18).
The role of hypothermia is recognized in patients with initial non-shockable, as well as shockable rhythms [2].
Because less than 25% of in-hospital patients in cardiac arrest have shockable rhythms, the ability to deliver high-quality CPR is critical to survival.
The same studies reported sensitivities of 94% and 96% for shockable rhythms, satisfying an American Heart Association recommendation that AED sensitivities be greater than 90%.