What question did this study set out to answer?

To describe the operational timing cycles and atrial refractory intervals that govern upper rate behavior and limit ventricular response in dual chamber pacemakers.

March 1, 1985Pacing and Clinical Electrophysiology

Dual Chamber Pacemakers: Upper Rate Behavior

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To describe the operational timing cycles and atrial refractory intervals that govern upper rate behavior and limit ventricular response in dual chamber pacemakers.
Evaluated pacemaker timing cycles by defining total atrial refractory interval as the sum of the atrioventricular interval and the post-ventricular atrial refractory interval.
Modeled pacing responses across variations between the upper rate limit interval and total atrial refractory interval.
Programming the upper rate limit interval equal to the total atrial refractory interval causes sudden atrioventricular block when upper rate thresholds are met.
Setting the upper rate limit interval longer than the total atrial refractory interval generates a Wenckebach interval response plateau during fast atrial coupling.
All dual chamber pacing behaviors can be mapped using interactions among atrial refractoriness, upper/lower rate intervals, and ventricular blanking periods.

Design

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Authors

SFSeymour FurmanElectrophysiology

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Implication

Simplifies dual-chamber pacemaker timing analysis for clinicians; extends conceptual models for device programming research.

Cite This Study

Seymour Furman (1985) studied this question.

synapsesocial.com/papers/6a838692b59abb3f3b3072bd https://doi.org/10.1111/j.1540-8159.1985.tb05751.x

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Dual Chamber Pacemakers: Upper Rate Behavior

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Discussion

Implication

Cite This Study

Dual Chamber Pacemakers: Upper Rate Behavior

Key Points

Discussion

Implication

Cite This Study

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