BAROREFLEX ACTIVATION FOR ARRHYTHMIA TREATMENT
First Claim
1. A method of promoting recovery from an arrhythmia occurring in a heart of a patient, comprising activating a baroreflex system of the patient with at least one baroreflex activation device after occurrence of an arrhythmia event.
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Accused Products
Abstract
Devices, systems and methods provide baroreflex activation to prevent, or at least reduce the likelihood of occurrence of, cardiac arrhythmias. Various embodiments may additionally or alternatively promote recovery from arrhythmias. In one embodiment, a device for preventing or reducing the likelihood of occurrence of arrhythmias includes one or more baroreflex activation devices, one or more sensors coupled to the baroreflex activation device(s), and a processor for processing information from the sensor and activating and/or modulation the baroreflex activation device. Sensors, such as electrocardiogram devices, generally sense factors indicative of a potential, ensuing arrhythmia.
158 Citations
84 Claims
- 1. A method of promoting recovery from an arrhythmia occurring in a heart of a patient, comprising activating a baroreflex system of the patient with at least one baroreflex activation device after occurrence of an arrhythmia event.
- 24. A method of promoting recovery from an arrhythmia occurring in a heart of a patient, comprising activating a baroreflex system of the patient with at least one baroreflex activation device in response to an indication that anti-arrhythmia pacing is being applied to the heart via a pacemaker.
- 26. A method of promoting recovery from an arrhythmia occurring in a heart of a patient, comprising activating a baroreflex system of the patient with at least one baroreflex activation device in response to an indication that anti-arrhythmia treatment is being applied to the heart via a cardiovertor/defibrillator.
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29. A method, comprising:
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detecting a predetermined cardiac activity indicated for an antitachycardia shock; applying neural stimulation in preparation for the shock; and subcutaneously delivering the shock. - View Dependent Claims (30, 31, 32)
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33. A method, comprising:
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applying neural stimulation as part of a prophylactic therapy, including; delivering intermittent neural stimulation to prevent an arrhythmia, or delivering intermittent neural stimulation to prevent or abate progression of a heart condition or ailment; detecting a predetermined cardiac activity indicated for an antitachycardia shock; and subcutaneously delivering the shock. - View Dependent Claims (34)
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35. A system, comprising:
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means for detecting a predetermined cardiac activity indicated for an antitachycardia shock; means for subcutaneously delivering the shock; and means for applying a neural stimulation therapy, including; means for delivering intermittent neural stimulation to prevent an arrhythmia, or means for delivering intermittent neural stimulation to prevent or abate progression of a heart condition or ailment. - View Dependent Claims (36)
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37. A system, comprising:
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a sensor adapted to detect a predetermined cardiac activity indicated for a defibrillation shock; a neural stimulator adapted to deliver nerve stimulation; a defibrillator adapted to subcutaneously deliver the defibrillation shock, wherein the neural stimulator is adapted to; deliver neural stimulation prior to the defibrillation shock;
ordeliver intermittent neural stimulation as a prophylactic therapy to prevent an arrhythmia;
ordeliver intermittent neural stimulation as a prophylactic therapy to prevent or abate progression of a heart condition or ailment.
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38. An implantable device, comprising:
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a shock pulse generator adapted to subcutaneously deliver an antitachycardia shock; a cardiac activity sensor adapted to detect cardiac activity signals; a neural stimulator generator adapted to deliver neural stimulation; a microprocessor adapted to detect a predetermined cardiac activity indicated for the antitachycardia shock using the cardiac activity detected by the cardiac activity sensor to control the shock pulse generator to deliver the antitachycardia shock, and to control the neural stimulator generator to; deliver neural stimulation prior to the antitachycardia shock;
ordeliver neural stimulation to prevent an arrhythmia;
ordeliver neural stimulation to prevent or abate progression of a heart condition or ailment.
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- 39. The device of claim 39, further comprising at least one satellite electrode adapted for use in wirelessly delivering the neural stimulation from the neural stimulator generator.
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42. A system, comprising:
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circuitry to determine when an arrhythmia has terminated; and a neural stimulator adapted to temporarily deliver a neural stimulation therapy to assist with recovering from the arrhythmia in response to termination of the arrhythmia.
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43. The system of claim 43, further comprising:
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circuitry to detect an arrhythmia; and a pulse generator to deliver an arrhythmia therapy to terminate the arrhythmia. - View Dependent Claims (45, 47, 50, 51)
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44. The system of claim 44, wherein the pulse generator is adapted to deliver an anti-arrhythmia shock or anti-arrhythmia pacing.
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46. The system of claim 46, wherein temporarily delivering the neural stimulation therapy to assist with recovering from the arrhythmia includes withdrawing the neural stimulation signal delivered as part of the chronic therapy.
- 48. The system of claim 48, wherein the arrhythmia therapy includes an anti-arrhythmia shock therapy, and the pre-therapy neural stimulation signal includes a neural stimulation therapy.
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52. A method, comprising:
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determining that an arrhythmia has terminated; and upon termination of the arrhythmia, temporarily delivering a neural stimulation therapy to assist with recovering from the arrhythmia.
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- 53. The method of claim 53, further comprising chronically performing a prophylactic neural stimulation therapy before the neural stimulation therapy to assist with recovering from the arrhythmia, or after the neural stimulation therapy to assist with recovering from the arrhythmia, or before and after the neural stimulation therapy to assist with recovering from the arrhythmia.
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55. The method of claim 55, wherein delivering at least the two stage neural stimulation therapy includes withdrawing neural stimulation after arrhythmia termination, and then delivering the neural stimulation therapy to assist with recovery from the arrhythmia.
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58. The method of claim 58, wherein delivering pretherapy neural stimulation includes delivering neural stimulation when the arrhythmia therapy includes a antitachycardia shock, or includes delivering neural stimulation to make an arrhythmia more amenable to an antitachycardia pacing (ATP) therapy.
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59. A method, comprising:
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in response to a therapy trigger, delivering a pretherapy neural stimulation in preparation for delivering a therapy; delivering the therapy; and upon completion of delivering of the therapy, delivering a post-therapy neural stimulation to assist with recovering from the therapy.
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- 60. The method of claim 60, wherein delivering a post-therapy neural stimulation to assist with recovering from the therapy includes delivering the post-therapy neural stimulation using a first stage of stimulation and then using a second stage of stimulation distinct from the first stage.
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62. A device, comprising:
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a controller; a sensor adapted to cooperate with the controller to detect an atrial arrhythmia event; and a neural stimulator adapted to stimulate a neural target to elicit a sympathetic response, the controller being adapted to control the neural stimulator to stimulate the neural target in response to the detected atrial arrhythmia event.
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- 63. The device of claim 63, wherein the sensor includes a sensor adapted to sense an electrogram reflective of atrial activity.
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70. A method, comprising:
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detecting an atrial arrhythmia event; and delivering an atrial arrhythmia treatment in response to a detected atrial arrhythmia event, including delivering neural stimulation to elicit a sympathetic response.
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71. The method of claim 71, wherein:
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detecting an atrial arrhythmia event includes detecting a precursor for an atrial arrhythmia episode; and delivering neural stimulation to elicit a sympathetic response includes delivering prophylactic neural stimulation to avoid the atrial arrhythmia event. - View Dependent Claims (72, 73, 74, 75)
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76. A method, comprising:
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sensing a patient condition indicative of an arrhythmia; applying baroreceptor stimulation in preparation for an anti-arrhythmia treatment for the arrhythmia; and applying the anti-arrhythmia treatment.
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77. A method, comprising:
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applying baroreceptor stimulation as a part of a chronic stimulus regimen, including; applying periodic baroreceptor stimulation to prevent an arrhythmia;
orapplying periodic baroreceptor stimulation to prevent and/or treat a heart condition or ailment; sensing a patient condition indicative of an arrhythmia; and applying an anti-arrhythmia treatment for the arrhythmia.
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78. A system, comprising:
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means for sensing a patient condition indicative of an arrhythmia; means for applying an anti-arrhythmia treatment; and means for applying a baroreceptor stimulus regimen, including; means for applying periodic baroreceptor stimulation to prevent an arrhythmia, or means for applying periodic baroreceptor stimulation to prevent and/or treat a heart condition or ailment.
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79. A system, comprising:
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a sensor adapted to sense a patient condition indicative of an arrhythmia; a baroreflex activation device adapted to apply baroreceptor stimulation; and a defibrillator adapted to apply an anti-arrhythmia treatment, wherein the baroreflex activation device is adapted to; apply baroreceptor stimulation prior to the anti-arrhythmia treatment;
orapply periodic baroreceptor stimulation as a chronic therapy to prevent an arrhythmia;
orapply periodic baroreceptor stimulation as a chronic therapy to prevent and/or treat a heart condition or ailment.
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80. An implantable device, comprising:
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an implantable cardioverter defibrillator (ICD) adapted to apply an anti-arrhythmia treatment; a sensor adapted to measure cardiac activity; a baroreflex activation device adapted to apply baroreceptor stimulation; and a processor adapted to determine a patient condition indicative of an arrhythmia using the cardiac activity measured by the sensor, to control the ICD to apply the anti-arrhythmia treatment, and to control the baroreflex activation device to; apply baroreceptor stimulation in preparation for the anti-arrhythmia treatment;
orapply baroreceptor stimulation to prevent an arrhythmia;
orapply baroreceptor stimulation to prevent and/or treat a heart condition or ailment.
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81. A system, comprising:
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a processor configured to determine when an arrhythmia has occurred; and a baroreflex activation device adapted to temporarily apply baroreceptor stimulation to promote recovery from the arrhythmia after occurrence of the arrhythmia.
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82. A method, comprising:
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determining when an arrhythmia has occurred; and after occurrence of the arrhythmia, temporarily applying baroreceptor stimulation to promote recovery from the arrhythmia.
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83. A device, comprising:
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a processor; a sensor adapted to cooperate with the processor to sense an arrhythmia; and a baroreflex activation device adapted to stimulate a baroreceptor to elicit a sympathetic response, the processor being adapted to control the baroreflex activation device to stimulate the baroreceptor in response to the sensed arrhythmia.
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84. A method, comprising:
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sensing an arrhythmia; and applying an anti-arrhythmia treatment in response to a sensed arrhythmia, including applying baroreceptor stimulation to elicit a sympathetic response.
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Specification