Device and method providing pacing and anti-tachyarrhythmia ther

Details Device and method providing pacing and anti-tachyarrhythmia ther Device and method providing pacing and anti-tachyarrhythmia ther

1997-01-29

2000-10-03

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 139

Patent

active

061285293

ABSTRACT:
Recognizing that delivery of pacing therapy to a patient may increase the risk of inappropriate delivery of anti-tachyarrhythmia therapy, a modified atrial-based timing device and method delivers pacing and anti-tachyarrhythmia therapy to the patient such that the risk is reduced. A ventricular-atrial (VA) time interval is increased, when an intrinsic ventricular activation is sensed during an atrial-ventricular (AV) time interval, by the time remaining in the immediately preceding AV time interval following the intrinsic ventricular activation sensed therein. As a result, the patient's heart rate is not elevated, in response to ventricular activations sensed during the AV time interval, and a tachyarrhythmia rate threshold is not exceeded, thereby avoiding inappropriate delivery of anti-tachyarrhythmia therapy.

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Hayes, D.L., et al., "Pacemaker Timing Cycles", Cardiac Pacing, Edited by Kenneth A. Ellenbogen, M.D., published by Blackwell Science, pp. cover page, title page and 263-308 (1992).

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