Device and method to discriminate between supraventricular tachycardias and ventricular arrhythmias
First Claim
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1. A device, comprising:
- a) a implantable pacemaker element;
b) a implantable defibrillator element connected to said pacemaker element; and
c) a plurality of atrial and ventricular pacing leads connected to said pacemaker element, wherein said pacing leads are configured for simultaneous activation.
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Abstract
This invention provides a method to discriminate between ventricular arrhythmia and supraventricular tachycardia by detecting an earliest arriving electrical signal following anti-tachycardia pacing. Also disclosed is an implantable cardiac defibrillator that is capable of simultaneous atrioventricular anti-tachycardia pacing bursts and detecting an earliest arriving electrical signal. This discrimination capability reduces the incidence of inappropriate shocks from dual-chamber implantable cardiac defibrillators to near zero and provides a method to differentially diagnose supraventricular tachycardia from ventricular tachycardia.
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Citations
26 Claims
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1. A device, comprising:
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a) a implantable pacemaker element;
b) a implantable defibrillator element connected to said pacemaker element; and
c) a plurality of atrial and ventricular pacing leads connected to said pacemaker element, wherein said pacing leads are configured for simultaneous activation. - View Dependent Claims (2, 3, 4, 5)
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6. A method, comprising:
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a) providing;
i) a patient implanted with a device, comprising;
1) a implantable pacemaker element; and
2) a plurality of atrial and ventricular pacing leads connected to said pacemaker element, wherein said pacing leads are configured for simultaneous activation and coursing to the ventricles and atria; and
ii) a plurality of sensing leads connected to said pacemaker coursing to the ventricles and atria;
b) initiating one or more pacing bursts by said pacemaker element, wherein said ventricles and atria are simultaneously paced; and
c) detecting an earliest arriving electrical signal following termination of said pacing bursts. - View Dependent Claims (7, 8, 9, 10, 16, 17, 18)
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11. A method, comprising:
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a) providing;
i) a patient;
ii) an electrocardiogram array;
iii) a plurality of intracardiac quadripole catheters, wherein said catheters are configured for simultaneous atrial and ventricular pacing; and
iv) a computer configured to receive electrical signals from said catheters;
b) placing said array on the skin surface of said patient;
c) inserting said catheters into said patient;
d) simultaneously pacing said atria and ventricles; and
e) detecting with said computer an earliest arriving electrical signal. - View Dependent Claims (12, 13, 14, 15)
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19. A method to detect the origin of a cardia arrythmia, comprising:
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a) providing;
i) a patient exhibiting cardiac arrhythmia;
ii) a system comprising a plurality of pacing leads and a plurality of sensing leads;
b) simultaneously pacing the atria and ventricles of said patient; and
c) sensing with said sensing leads said atrial and ventricular electrical activity after said pacing under conditions such that the earliest arriving electrical signal is detected. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification