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Pacemaker

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Pacemaker
*Treats chronic and acute conduction defects (3rd degree block, bradydysrhythmias, tachydysrhythmias).
Single-Chamber Pacing
*Only atria or ventricle passed, not both.
Output
*Electrical stimulus delivered by generator.
Lead
*Insulated wire.
Dual-Chamber Pacing
*Atria and ventricles passed.
Demand Pacing
*Pacing stimulus delivered only when patient's heart rate is below base rate.
Capture
*Ability of pacing stimulus to generate cardiac depolarization.
Base Rate
*Rate at which pacemaker paces when no cardiac activity is sensed.
Asynchronous Pacing
*Pacing stimulus at set rate regardless of heart rate.