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Identify healthy versus unhealthy substrate for pacing from multipolar leads

A technology for marking and electrodes, which is applied in the field of marking healthy and unhealthy substrates for pacing from multipolar leads, which can solve problems such as expensive and not easy to obtain

Active Publication Date: 2018-09-21
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the location of scar tissue may not be known without performing imaging procedures such as magnetic resonance imaging (MRI), which may be expensive, require catheterization or contrast agents, and in certain geographical areas may not be readily available

Method used

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  • Identify healthy versus unhealthy substrate for pacing from multipolar leads
  • Identify healthy versus unhealthy substrate for pacing from multipolar leads
  • Identify healthy versus unhealthy substrate for pacing from multipolar leads

Examples

Experimental program
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Embodiment Construction

[0014] figure 1 Is a schematic diagram of one embodiment of an implantable medical device (IMD) system 100 in which techniques disclosed herein may be implemented to provide therapy to a heart 112 of a patient 114 . System 100 includes IMD 10 coupled to leads 118, 120, and 122 that carry a plurality of electrodes. IMD 10 is configured for two-way communication with programmer 170 . IMD 16 may be, for example, an implantable pacemaker, or an implantable cardioverter-defibrillator (ICD), which communicates to heart 112 via electrodes coupled to one or more of leads 118, 120, and 122. Electrical signals are provided for pacing, cardioversion, and defibrillation of the heart 112 . IMD 10 is capable of delivering pacing in one or more chambers of the heart and, in the illustrated embodiment, is configured for use with leads 118, 120, and 122 in the right atrium (RA) 126, right ventricle (RV) 128, and left ventricle (LV) 132 for multi-chamber pacing and sensing.

[0015] IMD 10 ...

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Abstract

A medical device system performs a method for determining the presence of scar tissue. A torso-surface potential signal is received by the processor from a plurality of electrodes distributed over the torso of the patient. A processor extracts features of the potential signal from each electrode and stores the values ​​of the features in a non-transitory storage medium. The processor determines a scar indication for each electrode from the stored characteristics and identifies which of the electrodes have a positive scar indication. The overall scar burden indicator was determined as the proportion of electrodes with a positive indicator of scarring.

Description

technical field [0001] The present disclosure relates generally to identifying the presence of healthy versus unhealthy cardiac substrates, and more particularly to systems and methods for identifying substrates for receiving cardiac pacing. Background technique [0002] Myocardial ischemia or myocardial infarction can produce an area of ​​scar tissue in the myocardial stroma that will be unresponsive to cardiac pacing. If a patient with myocardial scar tissue requires cardiac pacing, it is preferable to avoid the location of the scar tissue when positioning the pacing electrodes. However, the location of scar tissue may not be known without performing imaging procedures such as magnetic resonance imaging (MRI), which may be expensive, require catheterization or contrast agents, and in certain geographical areas May not be readily available. [0003] Cardiac resynchronization therapy (CRT) is a type of cardiac pacing therapy used as a treatment for heart failure patients i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/0402A61B5/0452A61B5/0472A61B5/364A61B5/366
CPCA61B5/6823A61B5/316A61B5/25A61B5/364A61B5/339A61B5/366A61B5/318A61B5/349
Inventor S·戈什
Owner MEDTRONIC INC