title: Rate dependent far-field R wave sensing in an atrial tachyarrhythmia therapy device.
abstract: A case is reported of far-field R wave (FFRW) oversensing resulting in inappropriate atrial tachycardia (AT) detection by a dual chamber pacemaker incorporating atrial autoadjusting sensitivity (AAS). FFRW oversensing occurred during periods of functional atrial undersensing (FAU) with PR interval prolongation. Limitations of the pacemaker's ability to reject FFRWs and programming considerations for addressing this unique behavior are discussed.
authors.affiliation: Medtronic, Incorporated, Minneapolis, Minnesota, USA.
authors.forename: Robert F
authors.initials: RF
authors.lastname: Collins
authors.forename: Connor
authors.initials: C
authors.lastname: Haugh
authors.forename: David
authors.initials: D
authors.lastname: Casavant
authors.forename: Nirav
authors.initials: N
authors.lastname: Sheth
authors.forename: Lois
authors.initials: L
authors.lastname: Brown
authors.forename: Bruce
authors.initials: B
authors.lastname: Hook
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000175:diagnosis* / Q000628:therapy*; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D005260:Female; D006801:Humans; D010138:Pacemaker, Artificial; D012680:Sensitivity and Specificity