VDD (R) pacing system

摘要: 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 the likelihood undersensing. The pacemaker logic chooses reaction algorithm respond in accordance with whether an absence is more likely been undersense or incidence bradycardia. Specific algorithms are presented illustrate reactions probable brady occurrences. also incorporates subsystem for detection events.