Pacemaker Timing Settings
 • Lower rate limit (50-60 ...
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Description

Pacemaker Timing Settings

 • Lower rate limit (50-60 bpm) - The lowest rate at which the device will allow the heart to beat

 • Maximum tracking rate (a.k.a. upper rate limit) (120-130 bpm) - The fastest rate at which the device will pace the heart

 • AV Delay (150-200 bpm) - The period of time the pacemaker waits after a sensed or paced atrial depolarization before pacing the ventricle if intrinsic ventricular conduction is not sensed

 • Post-ventricular atrial refractory period (PVARP) (250-300 bpm) - The period of time after ventricular depolarization during which an atrial impulse sensed by the atrial lead will be ignored for timing cycle purposes.  (PVARP is a safety feature: prevents sensing and inappropriate tracking of retrograde P waves which would trigger pacemaker-mediated tachycardia)



- Dr. Eric Strong @DrEricStrong - Strong Medicine https://www.youtube.com/c/EricsMedicalLectures/featured



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Contributed by

Dr. Gerald Diaz
@GeraldMD
Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief 🇵🇭 🇺🇸 - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG:  https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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