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Anomalous “VVI” Pacing of a Dual Chamber Pacemaker When Programmed in DDI(R) Mode
Author(s) -
MASINI MICHELE,
DIANDA RENZO,
CORTIGIANI LAURO,
NANNINI EUGENIO
Publication year - 1999
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1999.tb00637.x
Subject(s) - medicine , sick sinus syndrome , single chamber , cardiac pacing , relay , dual (grammatical number) , sort , ventricular pacing , mode (computer interface) , cardiology , arithmetic , computer science , operating system , heart failure , mathematics , art , power (physics) , physics , literature , quantum mechanics
We describe the case of a dual chamber rate responsive pacemaker (Relay, model 294‐03, Intermedics, Angleton, TX, USA) implanted in a 68‐year‐old male for sick sinus syndrome, which was not working properly when programmed in the DDIR mode, thus determining occasionally a sort of “VVI” pacing. However, the pacemaker performed well when programmed in the DDDR mode. We discovered that this was not a malfunction of a single device but rather a general behavior of this family of Intermedics dual chamber pacemakers (also not rate responsive), caused by a software problem.