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Limitations of the Long‐Term Clinical Application of Rate Hysteresis
Author(s) -
HOLLINS W. JOSEPH,
LEMAN ROBERT B.,
KRATZ JOHN M.,
GILLETTE PAUL C.
Publication year - 1987
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.1540-8159.1987.tb05968.x
Subject(s) - medicine , hysteresis , atrial fibrillation , sick sinus syndrome , cardiology , discontinuation , sinus rhythm , heart rate , blood pressure , condensed matter physics , physics
Rate hysteresis is the ability of a pacemaker to pace at an automatic rate that is different from the escape rate. We reviewed our experience with this programmable feature and its utility. The long‐term clinical application of rate hysteresis was limited due to the development of atrial fibrillation or to slowing of the intrinsic cardiac rhythm in 27.6% of the 29 patients. Since many patients with sick sinus syndrome have preserved AV conduction, one might expect that these patients would have an adequate intrinsic heart rate to allow successful use of rate hysteresis pacing mode. Sick sinus syndrome was the intrinsic rhythm disturbance in 63% of the group requiring discontinuation of rate hysteresis. These patients may represent a subgroup in whom any theoretical advantages provided by the rate hysteresis feature may be outweighed by the propensity for the development of atrial fibrillation or significant slowing of the intrinsic rhythm.