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7272435 |
System and method for sudden cardiac death prediction
A device that calculates a sudden cardiac death score based on acquired patient data. A system and method that combines independent indications of sudden cardiac death to predict sudden cardiac...
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7269454 |
Methods and devices to guide therapy for ventricular fibrillation based on waveform analysis and survival benefit analysis
A method of determining a state of ventricular fibrillation from a waveform, includes: performing calculations on the Fourier transform of the waveform voltage values by using the quotient of the...
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7266410 |
Method and system for the prediction of cardiac arrhythmias, myocardial ischemia, and other diseased condition of the heart associated with elevated sympathetic neural discharges
Methods and systems are provided for determining an increased likelihood of the occurrence of a cardiac arrhythmia, myocardial ischemia, congestive heart failure and other diseased conditions of...
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7266409 |
Method and apparatus for determining oversensing in a medical device
A method and apparatus for determining oversensing in an implantable medical device that includes sensing a first cardiac signal and detecting cardiac events via a first electrode configuration,...
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7257443 |
Method and apparatus for detecting oscillations in cardiac rhythm with electrogram signals
A cardiac rhythm management device is configured to detect oscillations in cardiac rhythm by comparing electrogram signals during successive heart beats. Upon detection of electrical alternans, the...
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7251525 |
Treatment of arrhythmias via inhibition of a multifunctional calcium/calmodulin-dependent protein kinase
This invention provides a method for treating or preventing arrhythmias in a human subject comprising the administration of an effective amount of a calcium/calmodulin-dependent protein kinase...
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7242978 |
Method and apparatus for generating a template for arrhythmia detection and electrogram morphology classification
An implantable medical device and associated method for automatically generating morphology templates during fast cardiac rhythms, confirming a provisional template as a confirmed template, and...
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7233822 |
Combination of electrogram and intra-cardiac pressure to discriminate between fibrillation and tachycardia
A system and method for detecting and classifying cardiac arrhythmias based on cardiac pressure signals or the combination of cardiac electrical and cardiac pressure signals. A cardiac electrogram...
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7231244 |
Method and arrangement for predicting perioperative myocardial ischemia
A method and an arrangement for predicting perioperative myocardial ischemia. Heart rate measurements are carried out for example at night- and day-time before the operation to obtain heart rate...
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7221976 |
Analysis of the alternans cycle to cycle and/or the variability of the ventricular repolarization wave in an ECG signal
A device for the analysis of the alternans cycle to cycle and/or the variability of the ventricular repolarization wave in an ECG signal. This device extracts from an ECG signal, for each cardiac...
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7215992 |
Method for ischemia detection by implantable cardiac device
A cardiac device in which heart rate variability is computed in order to detect changes indicative of cardiac ischemia. In the case where the device is a pacemaker, the device may alter its pacing...
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7215993 |
Cardiac rhythm management systems and methods for detecting or validating cardiac beats in the presence of noise
This document describes systems, devices, and methods for detecting or validating cardiac beats, such as in the presence of myopotential or other noise. In one example, an amplitude peak, which is...
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7212849 |
Methods and apparatuses for arrhythmia detection and classification using wireless ECG
A CRM system enhances intracardiac electrogram-based arrhythmia detection using a wireless electrocardiogram (ECG), which is a signal sensed with implantable electrodes and approximating a surface...
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7206633 |
Device and method to discriminate between supraventricular tachycardias and ventricular arrhythmias
A method discriminates between ventricular arrhythmia and supraventricular tachycardia by detecting an earliest arriving electrical signal following anti-tachycardia pacing. An implantable cardiac...
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7190996 |
Monitor for early detection of ischemic heart disease
A monitor for early detection of an ischemic heart disease of a patient has an impedance measurement unit including an electrode arrangement for measuring an intracardiac impedance and generating a...
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7190999 |
Cardio-pulmonary resuscitation device with feedback from measurement of pulse and/or blood oxygenation
An apparatus for assisting a rescuer in performing CPR on a victim. The apparatus comprising at least one of a pulse sensor for measuring the pulse rate of the victim and an SpO2 sensor for...
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7187965 |
Cardiac rhythm monitoring device
The present invention is a cardiac rhythm-monitoring device, which allows patients to perform a preliminary screening for supraventricular arrhythmia. The device detects beat-to-beat heart rhythms...
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7187966 |
Method and apparatus for displaying alternans data
Method and apparatus for displaying alternans data of an electrocardiogram signal having a plurality of odd beats and a plurality of even beats. The method can include calculating an odd median...
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7184815 |
System and method for selection of morphology templates
A template selection method involves providing a plurality of templates representing a type of cardiac event. One or more characteristics of each template are evaluated. The evaluations are...
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7184816 |
Cardiac stimulating and detecting device, system and method for identifying far field signals
In an implantable heart stimulating device, system and method, a control circuit has first and second circuits for sensing and pacing. The first circuit can be connected to a first electrode member...
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7181269 |
Implantable device that diagnoses ischemia and myocardial infarction and method
An implantable device detects and discriminates between ischemia and myocardial infarction. The device includes a plurality of electrodes that provide a plurality of cardiac activity sensing...
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7181282 |
Implantable cardiac device with PVC density monitoring, and therapy control and method
An implantable cardiac device provides a learned premature ventricular contraction density function responsive to detected premature ventricular contractions. A current premature ventricular...
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7181277 |
Methods and systems for reducing the likelihood of arrhythmia onset
Various embodiments are directed to providing systems and methods that can reduce the likelihood of arrhythmia onset by effecting a treatment, responsive to a detected premature event, that mimics...
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7181270 |
Arrangement for predicting tachyarrhythmia
An arrangement 10 for predicting tachyarrhythmia of a heart has a detection means 12 and an evaluation unit 18 . The detection means 12 picks up electrical signals from the heart. The...
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7177685 |
Classifying tachyarrhythmia using time interval between ventricular depolarization and mitral valve closure
A cardiac rhythm management system measures a time interval between a first fiducial marker indicative of a ventricular depolarization (e.g., a Q-wave, an R-wave, etc.) and a second fiducial marker...
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7174205 |
Cardiac diagnostic system and method
Computer method and apparatus of analyzing ECG signals of a subject include receiving a subject electrocardiogram signal and comparing it against signal patterns of known cardiac syndromes. A...
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7174204 |
Methods for quantifying the morphology and amplitude of cardiac action potential alternans
Methods and apparatus for determining T-wave alternan signatures (i.e., morphology and polarity) derived from a physiologic signal representative of a subject's heart activity; assessing changes in...
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7174209 |
Algorithm for discrimination of 1:1 tachycardias
An algorithm for detection of tachycardias and for discriminating between supraventricular tachycardia (SVT) and ventricular tachycardia (VT) when a 1:1 tachycardia condition is present that can be...
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7171260 |
Ectopic beat detection algorithm for implantable cardiac rhythm management device
A method implemented in a dual chamber cardiac rhythm management device for identifying non-sinus ventricular depolarizations following an atrial event. The PR interval for a sensed ventricular...
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7171265 |
Apparatus and method for detecting lead adequacy and quality
A method and system for detecting lead adequacy and quality for leads used in devices that sense or deliver low levels of electromagnetic energy. The system includes leads attached to a package...
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7167747 |
Identification of oversensing using sinus R-wave template
A method and apparatus delivering therapy in an implantable medical device that includes sensing a first cardiac signal and detecting cardiac events via a first electrode configuration, determining...
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7151958 |
System and method of classifying tachyarrhythmia episodes as associated or disassociated
A method and system for classifying tachyarrhythmia episodes as associated or disassociated. Primary and auxiliary depolarizations are detected from different cardiac regions during a tachycardia...
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7149569 |
Apparatus and method for improved morphology discrimination in an implantable cardioverter defibrillator
A system and method for enhancing classification of tachycardias. The tachycardias are associated with a sequence of sensed cardiac complexes, each having a calculated morphology score. The method...
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7146205 |
Methods for determining whether to provide an inhibitor of sympathetic nervous system activity to a human being suffering from an autoimmune disease or fibryomyalgia
The present invention provides methods for determining whether to provide an inhibitor of sympathetic nervous system activity to a human being suffering from an autoimmune disease and/or...
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7142911 |
Method and apparatus for monitoring drug effects on cardiac electrical signals using an implantable cardiac stimulation device
An implantable cardiac stimulation device, such as a pacemaker or Implantable Cardioverter Defibrillator, is configured to automatically monitor the effects of antiarrhythmic drugs on cardiac...
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7139604 |
Cardiac stimulation system and method for discriminating sinus from non-sinus events
A cardiac stimulation device and method discriminates sinus events from non-sinus events and provide a uniquely prescribed response upon detection of a specific event.
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7136694 |
Methods for quantifying the morphology and amplitude of cardiac action potential alternans
Methods and apparatus for determining T-wave alternan signatures (i.e., morphology and polarity) derived from a physiologic signal representative of a subject's heart activity; assessing changes in...
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7136693 |
Method and apparatus for generating a twelve-lead ECG from fewer than ten electrodes
A method and apparatus for acquiring and processing electrical signals produced by a patient's heart. The apparatus includes fewer than ten electrodes for attachment to the patient. Each electrode...
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7130681 |
Use of accelerometer signal to augment ventricular arrhythmia detection
A system and method for detecting and discriminating atrial arrhythmias based on mechanical signals of cardiac wall motion and electrical signals of cardiac depolarizations. A mechanical event rate...
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7130677 |
Methods and apparatus for discriminating polymorphic tachyarrhythmias from monomorphic tachyarrhythmias facilitating detection of fibrillation
Methods and apparatus are provided for discriminating high rate polymorphic QRS complexes from high rate monomorphic QRS complexes to increase the specificity of detection of polymorphic VT and VF...
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7127290 |
Cardiac rhythm management systems and methods predicting congestive heart failure status
This document describes, among other things, systems, devices, and methods for predicting how the status of the patient's congestive heart failure (CHF) condition will progress in the future. In...
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7123953 |
Method and system for evaluating arrhythmia risk with QT-RR interval data sets
A method of assessing the cardiac arrhythmia risk in a subject to provide a measure of cardiac or cardiovascular health in that subject is described herein. In one embodiment, the method comprises...
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7120485 |
Method and system for detection of cardiac arrhythmia
There are many different serious cardiac arrhythmias. The present invention uses measurements of RR intervals (interbeat intervals) to detect, in particular but not exclusively, atrial fibrillation...
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7120484 |
Methods and apparatus for filtering EGM signals detected by an implantable medical device
An analog physiologic signal, e.g., the cardiac EGM, sensed by an IMD is filtered with a high pass filter (HPF), the cut-off frequency of the HPF being within a predetermined frequency bandwidth,...
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7117030 |
Method and algorithm for spatially identifying sources of cardiac fibrillation
A method and computer program product comprising an algorithm adapted to execute a method of identifying the spatial coordinates of a sustaining source of fibrillatory activity in a heart by...
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7117029 |
Method of and apparatus for deriving indices characterizing atrial arrhythmias
In a method of and apparatus for deriving indices characterizing atrial arrhythmias, a temporally isolated portion of a digital representation of a time-domain electrical signal originating from...
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7107096 |
System for patient alerting associated with a cardiac event
A system for the detection of cardiac events occurring in a human patient is provided. At least two electrodes are included in the system for obtaining an electrical signal from a patient's heart....
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7103404 |
Detection of tachyarrhythmia termination
Determining termination of an identified tachyarrhythmia episode may involve analysis of a relative decrease in tachyarrhythmia rate, a normalization of electrogram morphology criteria, or both. An...
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7092751 |
Detection of atrial arrhythmia
The invention relates to a method and system for detecting atrial arrhythmia, especially atrial fibrillations. Based on at least one electrical signal indicative of a heart's activity, a plurality...
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7089049 |
Removing polarization artifacts from electrical activity signals to detect cardiac evoked response
A medical device is directed to techniques for removing polarization artifacts from electrical activity signals in order to detect presence of an evoked response. More specifically, a medical...
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