Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1998-06-16
2000-10-03
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
607 25, A61N 1365
Patent
active
06128534&
ABSTRACT:
Provided herein are methods and apparatus for automatically adjusting pacing parameters in implantable programmable stimulation devices, such as rate-responsive pacemakers and cardioverter defibrillators. The methods and apparatus provide a circadian varying pacing parameter (e.g., pacing rate, AV Delay, etc.) that very closely mimics the natural diurnal fluctuations of a patient's heart. Using physiological parameters that vary diurnally (e.g., minute ventilation and/or activity variance, etc.), a circadian-base value is derived. In the preferred embodiments, the physiological measurements are used to derive a histogram from which certain characteristic values are determined. These physiological characteristic values, along with the predetermined characteristic rates, automatically and periodically determine a transfer function from which the patient's appropriate circadian base rate is derived. Further contemplated herein are the use of more than one physiological parameter to derive a final circadian base rate, and stimulation devices employing these methods.
REFERENCES:
patent: 4922930 (1990-05-01), Adkins et al.
patent: 4945909 (1990-08-01), Fearnot et al.
patent: 5143065 (1992-09-01), Adkins et al.
patent: 5300092 (1994-04-01), Schaldach
patent: 5476483 (1995-12-01), Bornzin et al.
patent: 5514162 (1996-05-01), Bornzin et al.
patent: 5861011 (1999-01-01), Stoop
Bronzin, et al "Adjusting Heart Rate During Sleep Using Activity Variance" pp. 1933-1938, PACE, vol. 17, Nov. 1994, Pt. II.
Morris-Thurgood, et. al "A Rate Responsive Pacemaker that Physiologycally Reduces Pacing Rates at Rest" pp. 1928-1932, PACE vol. 17, Nov. 1994, Pt. II.
Djordjevic, et al. "Circadian Variations of Heart Rate and STIM-T Interval: Adaptation for Nighttime Pacing" pp. 1757-1762, PACE vol. 12, Nov. 1989.
Chew, et al "Overnight Heart Rate and Cardiac Function in Patients with Dual Chamber Pacemakers" pp. 822-828, PACE vol. 19, May 1996.
Bornzin Gene A.
Bradley Kerry
Florio Joseph J.
Gibb William
Park Euljoon
Evanisko George R.
Kamm William E.
Pacesetter Inc.
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