Pacemaker with vasovagal syncope detection and therapy

Details Pacemaker with vasovagal syncope detection and therapy Pacemaker with vasovagal syncope detection and therapy

2006-04-11

2006-04-11

Pezzuto, Robert E. (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C607S025000

Reexamination Certificate

active

07027865

ABSTRACT:
A method and apparatus for cardiac pacing are provided in which pacing pulses are delivered at an increased rate in response to a detected intrinsic heart rate drop and a special rate drop response detection scheme is temporarily disabled until an intrinsic heart rate exceeds a predetermined threshold value. If the pacing rate reaches the lower pacing rate without sensing intrinsic activity, heart rate drop detection remains disabled and lower rate pacing continues. Rate drop detection is re-enabled whenever sufficient sensed intrinsic activity indicates that a sudden intrinsic rate drop could occur again. Thus, the subsequent reduction in heart rate requiring therapy is declared only if a sensed intrinsic heart rate drops from above an intermediate value (herein defined as a re-enable rate) that is set above the lower pacing rate and an upper pacing rate.

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patent: 2002/0004670 (2002-01-01), Florio et al.
patent: WO 95/29734 (1995-11-01), None

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