title: The combined use of hysteresis and Holter functions improves diagnosis and therapy in patients with sick sinus syndrome.
abstract: We used the Holter functions of an implantable pacemaker in 12 patients with sino-atrial disease suffering from Adam-Stokes attacks to analyze the effects of hysteresis programming. The basic pacing rate of 50 ppm combined with a programmed hysteresis value of 10 to 20 ppm led to a drastic reduction in competition between paced and spontaneous beats: the percentage of paced beats decreased from 20.1% without hysteresis to 1.4% using 10 ppm hysteresis and the switches from sense to pace decreased from 2.0% to 0.06%. On the other hand, with hysteresis, no decrease in either the exercise tolerance or general well-being of the patients was observed.
authors: I. Medical Clinic, Technical University of Munich, West Germany.
authors: K
authors: K
authors: Stangl
authors: A
authors: A
authors: Wirtzfeld
authors: U
authors: U
authors: Sichart
authors: K F
authors: KF
authors: Seidl
authors: H
authors: H
authors: Blömer
mesh_terms: D000219:Adams-Stokes Syndrome / Q000517:prevention & control; D000328:Adult; D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods; D010138:Pacemaker, Artificial; D012804:Sick Sinus Syndrome / Q000175:diagnosis / Q000628:therapy*