METHOD AND APPARATUS FOR INITIATING AND DELIVERING CARDIAC PROTECTION PACING
First Claim
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1. A cardiac pacing system, comprising:
- a sensing circuit to sense one or more signals indicative of an ischemic event;
an ischemia detector, coupled to the sensing circuit, to detect an onset of the ischemic event from the one or more signals;
a pulse output circuit to deliver pacing pulses; and
a control circuit, coupled to the ischemia detector and the pulse output circuit, to control the delivery of the pacing pulses, the control circuit including;
a concurrent conditioning sequence initiator adapted to initiate a concurrent conditioning sequence when an ischemia time interval expires, the ischemia time interval starting when the onset of the ischemic event is detected, the concurrent conditioning sequence including alternating concurrent conditioning pacing and non-pacing periods, the concurrent conditioning pacing periods each having a concurrent conditioning pacing duration during which a plurality of the pacing pulses is delivered, the concurrent conditioning non-pacing periods each having a concurrent conditioning non-pacing duration during which none of the pacing pulses is delivered; and
a concurrent conditioning timer adapted to time the concurrent conditioning sequence.
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Abstract
A pacing system delivers cardiac protection pacing to protect the heart from injuries associated with ischemic events. The pacing system detects an ischemic event and, in response, initiates one or more cardiac protection pacing sequences each including alternative pacing and non-pacing periods. In one embodiment, the pacing system initiates a cardiac protection pacing sequence in response to the detection of the onset of an ischemic event, such that a pacing concurrent conditioning therapy is applied during the detected ischemic event.
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Citations
20 Claims
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1. A cardiac pacing system, comprising:
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a sensing circuit to sense one or more signals indicative of an ischemic event; an ischemia detector, coupled to the sensing circuit, to detect an onset of the ischemic event from the one or more signals; a pulse output circuit to deliver pacing pulses; and a control circuit, coupled to the ischemia detector and the pulse output circuit, to control the delivery of the pacing pulses, the control circuit including; a concurrent conditioning sequence initiator adapted to initiate a concurrent conditioning sequence when an ischemia time interval expires, the ischemia time interval starting when the onset of the ischemic event is detected, the concurrent conditioning sequence including alternating concurrent conditioning pacing and non-pacing periods, the concurrent conditioning pacing periods each having a concurrent conditioning pacing duration during which a plurality of the pacing pulses is delivered, the concurrent conditioning non-pacing periods each having a concurrent conditioning non-pacing duration during which none of the pacing pulses is delivered; and a concurrent conditioning timer adapted to time the concurrent conditioning sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for delivering pacing pulses, the method comprising:
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sensing one or more signals indicative of an ischemic event; detecting an onset of the ischemic event from the one or more signals; initiating one or more cardiac protection pacing sequences in response to the detection of the onset of the ischemic event, the one or more cardiac protection pacing sequences each including alternating pacing and non-pacing periods, the pacing periods each having a pacing duration during which a plurality of pacing pulses is delivered, the non-pacing periods each having a non-pacing duration during which no pacing pulse is delivered; and delivering the plurality of pacing pulses during each of the pacing periods. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification