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Atrial fibrillation detection using ventricular rate variability

A technology of atrial fibrillation and ventricles, applied in the direction of measuring pulse rate/heart rate, application, diagnostic recording/measurement, etc., can solve the problems such as the increase of AF prevalence

Active Publication Date: 2017-05-10
CARDIAC PACEMAKERS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased severity of CHF among patients may lead to increased prevalence of AF

Method used

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  • Atrial fibrillation detection using ventricular rate variability
  • Atrial fibrillation detection using ventricular rate variability
  • Atrial fibrillation detection using ventricular rate variability

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0061] Example 1 can include subject matter that can include apparatus for detecting atrial fibrillation (e.g., a system, method, apparatus, or machine-readable medium for performing an action that when executed by a machine causes the machine to perform the action, etc.) . The device may include processor circuitry. The processor circuit may include: (1) an input device that may receive a first ventricular rate (or corresponding heart rate time interval) change and a second ventricular rate (or corresponding heart rate time interval) change for three temporally adjacent ventricular heartbeats. (2) a first counter circuit that can determine a first count of instances of a pair whose combined rate (or corresponding heart rate time interval) change magnitude characteristic is less than at least one first criterion (3) a second counter circuit that can determine instances of pairs where both the first ventricular rate (or corresponding heart rate time interval) change and the se...

example 14

[0074] Example 14 may include or may be combined with the subject matter according to one or any combination of Examples 1-13 to optionally include a subject matter (such as an apparatus, method, apparatus for performing an action, or a machine including such an instruction) reading medium (i.e., should, when executed by a machine, cause the machine to perform an action), the subject matter may include receiving, at a processor circuit, changes in a first ventricular rate (or corresponding heart rate time interval) for three temporally adjacent ventricular heartbeats and A paired indication of a second ventricular rate (or corresponding heart rate time interval) change; determining using a processor circuit that the combined rate (or corresponding heart rate time interval) change magnitude characteristic may be less than at least one of the paired first criteria First count of instances; determining, using the processor circuit, the first instance of a pair for which both the f...

example 16

[0076]Example 16 may include or may be combined with the subject matter according to one or any combination of Examples 1-15 to optionally include a subject matter (such as an apparatus, method, apparatus for performing an action, or a machine including such an instruction can read medium (that is, should when executed by a machine cause the machine to perform an action), this subject matter may include apparatus for detecting atrial fibrillation. The device may include processor circuitry. The processor circuit may include: (1) an input device that may receive a first ventricular rate (or corresponding heart rate time interval) change and a second ventricular rate (or corresponding heart rate time interval) change for three temporally adjacent ventricular heartbeats. (2) a first counter circuit that can determine the combined rate (or corresponding heart rate time interval) change magnitude characteristic of the paired instances that can be less than at least one first criter...

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PUM

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Abstract

Atrial fibrillation information can be determined from ventricular information or a ventricular location, such as using ventricular rate variability. An ambulatory medical device can receive indications of pairs of first and second ventricular rate changes of three temporally adjacent ventricular heart beats. A first count of instances of the pairs meeting a combined rate change magnitude characteristic and a second count of instances of the pairs in which both of the first and second ventricular rate changes are negative can be used to provide atrial fibrillation information.

Description

[0001] claim priority [0002] This application is based on 35 U.S.C. §119(e) claiming the benefit of priority to U.S. Provisional Patent Application Serial No. 62 / 037,348, filed August 14, 2014, which is hereby incorporated by reference in its entirety. Background technique [0003] Atrial fibrillation (AF) is a common heart rhythm disorder. AF is a type of disorganized atrial tachycardia in which the normal, regular sinus rhythm is overwhelmed by uncoordinated electrical impulses arising from areas in or near the atria. This can lead to irregular conduction to the ventricles, resulting in a disproportionately fast and irregular heart rate. Sudden AF may last from minutes to days before terminating on its own. Persistent AF may last a full week and may require medication, cardioversion, or other treatments to return to normal sinus rhythm. Permanent AF is usually not reversible with treatment. Persistent AF may become more frequent and may evolve into permanent AF. AF ma...

Claims

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Application Information

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IPC IPC(8): A61B5/024A61B5/04A61B5/046G06F19/00A61B5/361A61B5/296A61B5/366
CPCA61B5/02405A61B5/7203A61B5/7278A61B5/7264A61B5/316A61B5/361A61B5/366G16H50/20A61B5/346A61B5/33
Inventor 乔纳森·沃尔特·克鲁格迪帕·马哈詹戴维·L·佩尔施巴谢
Owner CARDIAC PACEMAKERS INC
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