Wenckebach upper rate response in single chamber pacemaker.
The Medtronic Minix pacemaker during normal function in the VVT mode was found to exhibit a Wenckenbach upper rate response similar to that of dual chamber devices. This behavior occurred only when the upper rate interval was longer than the pacemaker refractory period. In a single chamber device this response may simulate pacemaker malfunction.
Genesee Hospital, Rochester, New York, USA. ssbarold@aol.com
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D002304:Cardiac Pacing, Artificial / Q000379:methods; D004867:Equipment Design; D004868:Equipment Failure; D006339:Heart Rate; D006801:Humans; D010138:Pacemaker, Artificial