CA2211595A1 - Dual chamber pacing system and method with optimized adjustment of the av escape interval for treating cardiomyopathy - Google Patents

Dual chamber pacing system and method with optimized adjustment of the av escape interval for treating cardiomyopathy

Info

Publication number
CA2211595A1
CA2211595A1 CA002211595A CA2211595A CA2211595A1 CA 2211595 A1 CA2211595 A1 CA 2211595A1 CA 002211595 A CA002211595 A CA 002211595A CA 2211595 A CA2211595 A CA 2211595A CA 2211595 A1 CA2211595 A1 CA 2211595A1
Authority
CA
Canada
Prior art keywords
escape interval
longest
ffrs
optimized
escape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002211595A
Other languages
French (fr)
Other versions
CA2211595C (en
Inventor
H. Toby Markowitz
Tom D. Bennett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medtronic Inc
Original Assignee
Medtronic, Inc.
H. Toby Markowitz
Tom D. Bennett
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medtronic, Inc., H. Toby Markowitz, Tom D. Bennett filed Critical Medtronic, Inc.
Publication of CA2211595A1 publication Critical patent/CA2211595A1/en
Application granted granted Critical
Publication of CA2211595C publication Critical patent/CA2211595C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/3627—Heart stimulators for treating a mechanical deficiency of the heart, e.g. congestive heart failure or cardiomyopathy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/368—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions
    • A61N1/3682—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions with a variable atrioventricular delay

Abstract

A dual chamber pacemaker system and method are provided for HOCM and like pacing therapy, with the feature of searching or scanning values of AV escape interval to define an optimized value at about the longest AV escape interval value consistent with full capture in response to a delivered ventricular pace pulse. In a preferred embodiment of the invention, the system and method sense and process FFRS signals derived from the atrial lead and otherwise, and obtain therefrom a characteristic which is evaluated for a determination of optimized AV escape interval. In one specific embodiment, the time durations between delivered ventricular pacing pulses and resulting FFRS signals are analyzed as a function of AV escape interval, and the optimized AV escape interval is chosen at about the longest AV escape interval corresponding to the longest such time duration, i.e., at about the knee of the FFRS time duration vs. AV escape internal curve. In another embodiment the FFRS
characteristic utilized is duration, and the system determines the longest AV
escape interval corresponding to the highest duration value. The system and method can be utilized either with an external programmer or can be adapted to operate automatically in an implanted pacemaker.
CA002211595A 1995-02-21 1996-01-29 Dual chamber pacing system and method with optimized adjustment of the av escape interval for treating cardiomyopathy Expired - Fee Related CA2211595C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/391,947 1995-02-21
US08/391,947 US5514163A (en) 1995-02-21 1995-02-21 Dual chamber pacing system and method with optimized adjustment of the AV escape interval for treating cardiomyopathy
PCT/US1996/000951 WO1996025975A1 (en) 1995-02-21 1996-01-29 Dual chamber pacing system and method with optimized adjustment of the av escape interval for treating cardiomyopathy

Publications (2)

Publication Number Publication Date
CA2211595A1 true CA2211595A1 (en) 1996-08-29
CA2211595C CA2211595C (en) 2002-02-05

Family

ID=23548629

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002211595A Expired - Fee Related CA2211595C (en) 1995-02-21 1996-01-29 Dual chamber pacing system and method with optimized adjustment of the av escape interval for treating cardiomyopathy

Country Status (7)

Country Link
US (1) US5514163A (en)
EP (1) EP0812222B1 (en)
JP (1) JP3187057B2 (en)
AU (1) AU4766296A (en)
CA (1) CA2211595C (en)
DE (1) DE69600595T2 (en)
WO (1) WO1996025975A1 (en)

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Also Published As

Publication number Publication date
JP3187057B2 (en) 2001-07-11
DE69600595D1 (en) 1998-10-08
JPH10504753A (en) 1998-05-12
EP0812222B1 (en) 1998-09-02
AU4766296A (en) 1996-09-11
EP0812222A1 (en) 1997-12-17
WO1996025975A1 (en) 1996-08-29
CA2211595C (en) 2002-02-05
DE69600595T2 (en) 1999-05-20
US5514163A (en) 1996-05-07

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