Atrial and ventricular implantable cardioverter-defibrillator and lead system
First Claim
1. A method of applying anti-tachyarrhythmia therapy to a heart in a patient, the method comprising the steps of:
- disposing a first ventricular electrode in a ventricle of the heart;
disposing a first supraventricular electrode in a supraventricular region of the heart;
monitoring atrial heart activity for atrial tachyarrhythmia activity indicative of a need for the anti-tachyarrhythmia therapy; and
applying, between the first supraventricular and first ventricular electrodes, the anti-tachyarrhythmia therapy to the heart if atrial tachyarrhythmia activity needing anti-tachyarrhythmia therapy is detected.
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Accused Products
Abstract
A cardiac rhythm management system, such as an implantable cardioverter-defibrillator (ICD), provides atrial anti-tachyarrhythmia therapy, such as a bipolar or unipolar electrical cardioversion countershock, or provides both atrial and ventricular anti-tachyarrhythmia therapy. The atrial and ventricular anti-tachyarrhythmia therapies have independent cardioversion-defibrillation energy levels and other parameters. The system provides an endocardial lead that is convenient to implant for providing the anti-tachyarrhythmia therapy. The endocardial lead includes a first supraventricular electrode disposed in the atrium and superior vena cava, and optionally includes a first ventricular electrode and ICD housing electrode.
137 Citations
25 Claims
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1. A method of applying anti-tachyarrhythmia therapy to a heart in a patient, the method comprising the steps of:
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disposing a first ventricular electrode in a ventricle of the heart; disposing a first supraventricular electrode in a supraventricular region of the heart; monitoring atrial heart activity for atrial tachyarrhythmia activity indicative of a need for the anti-tachyarrhythmia therapy; and applying, between the first supraventricular and first ventricular electrodes, the anti-tachyarrhythmia therapy to the heart if atrial tachyarrhythmia activity needing anti-tachyarrhythmia therapy is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of applying anti-tachyarrhythmia therapy to a heart in a patient, the method comprising the steps of:
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disposing an implantable cardioverter-defibrillator (ICD), including an ICD housing electrode, in a patient; disposing a first supraventricular electrode in a supraventricular region of the heart; monitoring atrial heart activity for atrial tachyarrhythmia activity indicative of a need for the anti-tachyarrhythmia therapy; monitoring ventricular heart activity that includes a ventriclilar activation; and applying, through the first supraventricular electrode and the ICD housing electrode, the anti-tachyarrhythmia therapy to the heart if atrial tachyarrhythmia activity needing anti-tachyarrhythmia therapy is detected, where applying the anti-tachyarrhythmia therapy is synchronized to the ventricular activation. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification