Multi-site PESP with fusion pacing
First Claim
1. A method of providing coupled ventricular pacing, comprising:
- sensing ventricular events at a first ventricular site and generating a ventricular sense event signal in response thereto; and
providing coupled pacing pulses simultaneously at the first ventricular site and at a second ventricular site at a ventricular extra stimulus interval (VESI) timed from immediately preceding ventricular sense event signals sufficient to effect post-extra-systolic potentiation (PESP) of the ventricular sites.
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Abstract
In some embodiments, a method of operating an implantable cardiac pacing device to provide coupled ventricular pacing may include one or more of the following steps: (a) sensing ventricular events at a first ventricular site and generating a ventricular sense event signal in response thereto, (b) providing coupled pacing pulses simultaneously at the first ventricular site and at a second ventricular site at a ventricular extra stimulus interval (VESI) timed from immediately preceding ventricular sense event signals sufficient to effect post-extra-systolic potentiation (PESP) of the ventricular sites, and (c) providing pacing pulse at the second ventricular site after sensing ventricular events at the first ventricular site.
45 Citations
20 Claims
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1. A method of providing coupled ventricular pacing, comprising:
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sensing ventricular events at a first ventricular site and generating a ventricular sense event signal in response thereto; and
providing coupled pacing pulses simultaneously at the first ventricular site and at a second ventricular site at a ventricular extra stimulus interval (VESI) timed from immediately preceding ventricular sense event signals sufficient to effect post-extra-systolic potentiation (PESP) of the ventricular sites. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of operating an implantable cardiac pacing device to provide coupled ventricular pacing, comprising:
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sensing ventricular events at a first ventricular site and generating a first ventricular sense event signal in response thereto;
sensing ventricular events at a second ventricular site and generating a second ventricular sense event signal in response thereto;
providing pacing pulses at the first ventricular site at a ventricular extra stimulus interval (VESI) timed from immediately preceding first ventricular sense event signals sufficient to effect post-extra-systolic potentiation (PESP) of the first ventricular site; and
providing a pacing pulse at the second ventricular site at the VESI sufficient to effect PESP of the second ventricular site. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of operating an implantable cardiac pacing device to provide coupled pacing, comprising:
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sensing intrinsic atrial depolarizations at an atrial site and generating an atrial sense event signal in response thereto;
sensing intrinsic ventricular depolarizations at a first ventricular site and generating a first ventricular sense event signal in response thereto;
providing coupled pacing pulses at the atrial site at an atrial extra stimulus interval (AESI) timed from the atrial sense event signal sufficient to effect post-extra-systolic potentiation (PESP) of the atrium;
sensing intrinsic ventricular depolarizations at the first ventricular site following immediately preceding coupled pacing pulses at the atrial site and generating a second ventricular sense event signal in response thereto; and
providing coupled pacing pulses at a second ventricular site at a ventricular extra stimulus interval (VESI) timed from one of the immediately preceding second ventricular sense event signal and the immediately preceding atrial sense event signal sufficient to effect PESP of the second ventricular site. - View Dependent Claims (19, 20)
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Specification