IMPLANTABLE MYOCARDIAL ISCHEMIA DETECTION, INDICATION AND ACTION TECHNOLOGY
First Claim
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1. A method of monitoring a heart for evidence of myocardial ischemia/infarction (MI/I), comprising:
- monitoring the heart using a pacemaker device implanted into a subject, the pacemaker device including a pacing electrode and a plurality of electrical sensors adapted to sense an electrogram signal, the electrical sensors being positioned at locations including the heart and vascular system, wherein only one of the electrical sensors adapted to sense an electrogram signal is positioned in the heart; and
determining whether evidence of MI/I is present in the subject, using the electrogram signal;
wherein at least some of the electrical sensors used in determining whether evidence of MI/I is present in the subject are also used to sense a need to pace the heart.
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Abstract
One embodiment enables detection of MI/I and emerging infarction in an implantable system. A plurality of devices may be used to gather and interpret data from within the heart, from the heart surface, and/or from the thoracic cavity. The apparatus may further alert the patient and/or communicate the condition to an external device or medical caregiver. Additionally, the implanted apparatus may initiate therapy of MI/I and emerging infarction.
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Citations
20 Claims
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1. A method of monitoring a heart for evidence of myocardial ischemia/infarction (MI/I), comprising:
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monitoring the heart using a pacemaker device implanted into a subject, the pacemaker device including a pacing electrode and a plurality of electrical sensors adapted to sense an electrogram signal, the electrical sensors being positioned at locations including the heart and vascular system, wherein only one of the electrical sensors adapted to sense an electrogram signal is positioned in the heart; and determining whether evidence of MI/I is present in the subject, using the electrogram signal; wherein at least some of the electrical sensors used in determining whether evidence of MI/I is present in the subject are also used to sense a need to pace the heart. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of monitoring a heart for evidence of myocardial ischemia/infarction (MI/I), comprising:
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monitoring the heart using a pacemaker device implanted into a subject, the pacemaker device including a pacing electrode and plurality of electrical sensors adapted to sense an electrogram signal, wherein all the electrical sensors adapted to sense an electrogram signal are positioned within the heart; and determining whether evidence of MI/I is present in the subject, using the electrogram signal; wherein at least some of the electrical sensors used in determining whether evidence of MI/I is present in the subject are also used to sense a need to pace the heart. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An implantable pacemaker adapted to monitor a heart for evidence of myocardial ischemia/infarction (MI/I), comprising:
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a pacing electrode and plurality of electrical sensors adapted to sense an electrogram signal, the electrical sensors adapted to be positioned at locations including the heart and vascular system, wherein only one of the electrical sensors adapted to sense an electrogram signal is adapted to be positioned in the heart; and a computer adapted to determine whether evidence of MI/I is present in the subject, using the electrogram signal obtained using the electrical sensors; wherein the pacemaker is configured so that at least some of the sensors used in the determining whether evidence of MI/I is present in the subject are also used to sense a need to pace the heart. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification