Use of activation and recovery times and dispersions to monitor heart failure status and arrhythmia risk
US7107093B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2003 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Sep 12, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36843
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for monitoring electrical dispersion of the heart is provided including an implantable medical device and associated electrode system for sensing cardiac signals from a combination of two or more local and/or global EGM sensing vectors and/or subcutaneous ECG sensing vectors. Activation and recovery times and the activation-recovery intervals are measured from a selected cardiac cycle for each sensing vector. Dispersion is determined as the differences between activation times, recovery times and/or ARIs measured from each of the sensing vectors. An increase in dispersion indicates a worsening of heart failure and/or an increased risk of arrhythmias. Accordingly, a cardiac therapy may be delivered or adjusted in response to a detected increase in dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.