VDD (R) pacing system

Details VDD (R) pacing system VDD (R) pacing system

1994-01-18

1995-10-03

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 1362

Patent

active

054548365

ABSTRACT:
A VDD-type pacing system which may have a floating atrial electrode analyzes P-wave events and absences of P-waves to determine data indicative of the likelihood of P-wave undersensing. The pacemaker logic chooses a reaction algorithm to respond to atrial events in accordance with whether an absence of a P-wave is more likely to have been an undersense or an incidence of bradycardia. Specific algorithms are presented which illustrate pacemaker reactions to probable undersense and brady occurrences. The pacemaker also incorporates a subsystem for detection of undersense events.

REFERENCES:
patent: 4513743 (1985-04-01), van Arragon et al.
patent: 5065759 (1991-11-01), Begemann et al.
patent: 5247930 (1993-09-01), Begemann et al.

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