IEGM Couple Intersection for Cardiac Ablation Site Mapping
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Solution Overview
Problem
Current cardiac stimulation systems lack a direct link between data collected by implanted devices and electrophysiology examinations, making it difficult to identify and treat ventricular arrhythmias effectively, as rhythm data during ablation procedures is not recorded by implantable defibrillators, leading to potential misidentification of ablation sites.
Innovation Solution
A system that includes an implanted device configured to record intracardiac electrogram couples and a mapping and ablation system communicatively coupled to the implanted device, which calculates parameters to determine areas of origin for each electrogram couple and finds their intersection to propose an ablation site in the cardiac chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If rhythm data during ablation procedures is not recorded by implantable defibrillators, then the device complexity is reduced, but the measurement precision of arrhythmia origin is worsened
Solution Approach 1:
The system performs preliminary recording of intracardiac electrogram data by the implantable defibrillator before the ablation procedure. This pre-recorded data serves as a foundation for later analysis, allowing the mapping system to correlate electrogram information with anatomical locations without requiring real-time recording during the procedure.
Solution Approach 2:
The mapping system acts as an intermediary that receives and processes the electrogram data from the implantable defibrillator. It combines this data with anatomical mapping information to identify arrhythmia origins, effectively bridging the gap between the simple data collection function of the defibrillator and the complex analysis requirements of arrhythmia localization.
2Device complexity
If there is no direct link between data collected by implanted device and electrophysiology examination data, then the device complexity is reduced, but the reliability of ablation site identification is worsened
Solution Approach 1:
The system merges data from two separate sources: the implantable defibrillator's intracardiac electrogram recordings and the electrophysiology examination's anatomical mapping data. By combining these datasets in the mapping system, the invention creates a unified view that links electrical activity with spatial location, thereby improving the reliability of ablation site identification without significantly increasing device complexity.
Solution Approach 2:
The system establishes a feedback loop where electrogram data from the implantable device is used to guide and refine the ablation procedure. The mapping system analyzes the electrogram patterns and provides feedback on potential arrhythmia origins, allowing physicians to adjust their ablation strategy based on objective data from the implanted device.
Data Source
AI summary
The present disclosure provides systems and methods for determining a proposed ablation site in a cardiac chamber. A system includes an implanted device configured to record a plurality of intracardiac electrogram (IEGM) couples, and a mapping and ablation system communicatively coupled to the implanted device. The mapping and ablation system is configured to receive the recorded plurality of IEGM couples from the implanted device, calculate a parameter for each of the plurality of IEGM couples, determine, based on the calculated parameters, an area of origin for each IEGM couple, and determine an intersection between the determined areas of origin, wherein the intersection represents the proposed ablation site in the cardiac chamber.