Method and apparatus for discrimination of ventricular and supraventricular tachycardia
First Claim
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1. A method of discriminating between a rapid heart rhythm of ventricular origin and rapid heart rhythm of supraventricular origin, comprising:
- monitoring the occurrence of depolarizations of said heart;
measuring the rate of said monitored depolarizations;
electrically stimulating the fat pad or fat pads associated with the SA node and/or the AV node of said heart if a rapid heart rhythm is detected;
determining whether stimulating said fat pad or fat pads results in a change in said detected rapid rhythm of said heart; and
diagnosing whether said detected rapid heart rhythm is of a ventricular or a supraventricular origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart.
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Abstract
A method for discrimination between ventricular and supraventricular tachycardia and an apparatus for performing the method. In response to the detection of the occurrence of an tachycardia, stimulus pulses are delivered to one or both of the SA and AV nodal fat pads. The response of the heart rhythm to these stimulus pulses is monitored. Depending upon the change or lack of change in the heart rhythm, a diagnosis is made as to the origin of the tachycardia.
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Citations
44 Claims
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1. A method of discriminating between a rapid heart rhythm of ventricular origin and rapid heart rhythm of supraventricular origin, comprising:
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monitoring the occurrence of depolarizations of said heart; measuring the rate of said monitored depolarizations; electrically stimulating the fat pad or fat pads associated with the SA node and/or the AV node of said heart if a rapid heart rhythm is detected; determining whether stimulating said fat pad or fat pads results in a change in said detected rapid rhythm of said heart; and diagnosing whether said detected rapid heart rhythm is of a ventricular or a supraventricular origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of discriminating between a rapid heart rhythm of sinus origin and rapid heart rhythm of non-sinus origin, comprising:
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monitoring the occurrence of depolarizations of said heart; measuring the rate of said monitored depolarizations; electrically stimulating the fat pad associated with the SA node of said heart if a rapid heart rhythm is detected; determining whether stimulating said fat pad results in a change in said detected rapid rhythm of said heart; and diagnosing whether said detected rapid heart rhythm is of a sinus or a non-sinus origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart. - View Dependent Claims (9, 10, 11)
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12. A method of treating tachycardias in a heart, comprising:
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monitoring the occurrence of depolarizations of said heart; measuring the rate of said monitored depolarizations; electrically stimulating the fat pad or fat pads associated with the SA node and/or the AV node of said heart if a rapid heart rhythm is detected; determining whether stimulating said fat pad or fat pads results in a change in said detected rapid rhythm of said heart; diagnosing whether said detected rapid heart rhythm is of a ventricular or a supraventricular origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart; selecting a therapy to be delivered to said heart as a function of said diagnosing step; and delivering said selected therapy. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of treating tachycardias in a heart, comprising:
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monitoring the occurrence of depolarizations of said heart; measuring the rate of said monitored depolarizations; electrically stimulating the fat pad associated with the SA node of said heart if a rapid heart rhythm is detected; determining whether stimulating said fat pad results in a change in said detected rapid rhythm of said heart; diagnosing whether said detected rapid heart rhythm is of a sinus or a non-sinus origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart;
selecting a therapy to be delivered to said heart as a function of said diagnosing step; anddelivering said selected therapy. - View Dependent Claims (20, 21, 22)
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23. Apparatus for discriminating between a rapid heart rhythm of ventricular origin and rapid heart rhythm of supraventricular origin, comprising:
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means for monitoring the occurrence of depolarizations of said heart; means for measuring the rate of said monitored depolarizations; means for electrically stimulating the fat pad or fat pads associated with the SA node and/or the AV node of said heart if a rapid heart rhythm is detected; means for determining whether stimulating said fat pad or fat pads results in a change in said detected rapid rhythm of said heart; and means for diagnosing whether said detected rapid heart rhythm is of a ventricular or a supraventricular origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. An apparatus for discriminating between a rapid heart rhythm of sinus origin and rapid heart rhythm of non-sinus origin, comprising:
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means for monitoring the occurrence of depolarizations of said heart; means for measuring the rate of said monitored depolarizations; means for electrically stimulating the fat pad associated with the SA node of said heart if a rapid heart rhythm is detected; means for determining whether stimulating said fat pad results in a change in said detected rapid rhythm of said heart; and means for diagnosing whether said detected rapid heart rhythm is of a sinus or a non-sinus origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart. - View Dependent Claims (31, 32, 33)
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34. An apparatus for treating tachycardias in a heart, comprising:
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means for monitoring the occurrence of depolarizations of said heart; means for measuring the rate of said monitored depolarizations; means for electrically stimulating the fat pad or fat pads associated with the SA node and/or the AV node of said heart if a rapid heart rhythm is detected; means for determining whether stimulating said fat pad or fat pads results in a change in said detected rapid rhythm of said heart; means for diagnosing whether said detected rapid heart rhythm is of a ventricular or a supraventricular origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart; means for selecting a therapy to be delivered to said heart as a function of said diagnosing step; and means for delivering said selected therapy. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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41. An apparatus for treating tachycardias in a heart, comprising:
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means for monitoring the occurrence of depolarizations of said heart; means for measuring the rate of said monitored depolarizations; means for electrically stimulating the fat pad associated with the SA node of said heart if a rapid heart rhythm is detected; means for determining whether stimulating said fat pad results in a change in said detected rapid rhythm of said heart; means for diagnosing whether said detected rapid heart rhythm is of a sinus or a non-sinus origin as a function of whether stimulating said fat pad or pads results in a change in said detected rapid rhythm of said heart; means for selecting a therapy to be delivered to said heart as a function of said diagnosing step; and means for delivering said selected therapy. - View Dependent Claims (42, 43, 44)
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Specification