US 2013/0172954 A1 · APPARATUSES AND METHODS USING THE ROLE OF VENTRICULAR ELECTRICAL DELAY TO PREDICT LEFT VENTRICULAR REMODELING WITH CARDIAC RESYNCHRONIZATION THERAPY

Abstract

A system comprises a cardiac signal sensing circuit and a processor circuit. The cardiac signal sensing circuit is configured to sense a cardiac signal segment using a set of electrodes connectable to the cardiac signal sensing circuit. The processor circuit is communicatively coupled to the cardiac signal sensing circuit and includes a peak detector circuit. The peak detector circuit is configured to identify, in the cardiac signal segment, a fiducial indicative of ventricular activation that is local to at least one electrode of the first set of electrodes. The fiducial includes a first large positive or negative peak greater than a specified percentage of a maximum peak of the first cardiac signal segment. The processor circuit is configured to provide an indication of local ventricular activation to at least one of a user or process.

Claims20

Dependent claims

A system comprising:

a first cardiac signal sensing circuit configured to sense a first cardiac signal segment using a first set of electrodes connectable to the first cardiac signal sensing circuit, wherein the first cardiac signal segment is sensed over a cardiac cycle;
a processor circuit communicatively coupled to the first cardiac signal sensing circuit, wherein the processor circuit includes:
a peak detector circuit configured to identify, in the first cardiac signal segment, a fiducial indicative of ventricular activation that is local to at least one electrode of the first set of electrodes, wherein the fiducial includes a first positive or negative peak with an amplitude that is greater than a specified percentage of a maximum peak amplitude of the first cardiac signal segment, and
wherein the processor circuit is configured to provide an indication of local ventricular activation to at least one of a user or process.

1 more element

A method of operating a medical device, the method comprising:

sensing a first cardiac signal segment using a first set of electrodes connectable to the medical device, wherein the first cardiac signal segment is sensed over a cardiac cycle;
identifying, in the first cardiac signal segment and by the medical device, a fiducial indicative of ventricular activation that is local to at least one electrode of the first set of electrodes, wherein the fiducial includes a first positive or negative peak having an amplitude greater than a specified percentage of a maximum peak amplitude of the first cardiac signal segment;
and
providing an indication of local ventricular activation to at least one of a user or process.

1 more element

Dependencies are inferred from the claim text.

Apparatuses and methods using the role of ventricular electrical delay to predict left ventricular remodeling with cardiac resynchronization therapy

Life of this patent

Apparatuses and methods using the role of ventricular electrical delay to predict left ventricular remodeling with cardiac resynchronization therapy

Life of this patent

Abstract

Claims20