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defibrillation
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defibrillation

Use of electrical stimulation to restore a chaotic heartbeat to a rhythmical pattern. In fibrillation, which may occur in most kinds of heart disease, the heart muscle contracts irregularly; the heart is no longer working as an efficient pump. Paddles are applied to the chest wall, and one or more electric shocks are delivered to normalize the beat.

In patients suffering with arrhythmia, implantable defibrillators are inserted into the chest with leads threading through veins into the right side of the heart. The first was implanted in 1980 and by 1999 around 400,000 had been implanted worldwide.



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Ideker and his team, while at Duke, discovered in animal experiments that a biphasic waveform-a lower, safer shock made up of a jolt of electricity followed by a weaker pulse-effectively defibrillates the heart.
Shocking rhythms: how to jolts of electricity bring people back to ... by Seachrist, Lisa / Science News
The study showed that "the RLB successfully defibrillates the pediatric size piglet at significantly lower energies than the MDS (Monophasic Damped Sine).
New Clinical Studies Discuss Results of the ZOLL Rectilinear Biphasic ... by Business Wire
For the highest risk patients, increasingly, the preferred treatment modality is the surgical placement of an implantable cardioverter defibrillator (ICD) that automatically defibrillates the heart back into normal rhythm.
FDA Clears Cambridge Heart's Alternans Test as the First Non-Invasive ... by Business Wire
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