Adaptive Cardiac Pacing Mode Selection via Conduction Delay Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for improved methods and systems to determine whether to implement biventricular (BiV) pacing or left ventricular (LV) pacing, as existing technologies struggle to optimize electrical stimulation and synchronization in patients with different cardiac conditions.
Innovation Solution
A computer-implemented method and system that measure conduction delays between atrial and ventricular electrodes to calculate first and second atrial ventricular (AV) delays. Based on the relation between these delays, the system selects either BiV pacing or LV only pacing mode and delivers pacing therapy accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If BiV pacing is implemented, then electrical synchrony and cardiac output are improved, but device complexity and procedure time increase
Solution Approach 1:
The system changes the parameter of AV delay timing to optimize electrical synchrony. By measuring intrinsic conduction times and calculating appropriate AV delays, the system adjusts pacing parameters to achieve fusion pacing, thereby improving cardiac output without requiring complex manual programming
Solution Approach 2:
The system performs self-testing and automatic determination of the optimal pacing mode (BiV or LV) by measuring intrinsic conduction times and analyzing AV delays. This automated decision-making process reduces device complexity by eliminating the need for complex external programming and manual optimization
2Reliability
If BiV pacing is implemented, then cardiac output is improved, but battery life is reduced
Solution Approach 1:
The system dynamically selects between BiV and LV pacing modes based on measured intrinsic conduction times and calculated AV delays. This dynamic adaptation allows the system to optimize cardiac output while managing battery consumption by choosing the most efficient pacing mode for each patient's specific conduction characteristics
Solution Approach 2:
The system changes the operational parameter from fixed BiV pacing to adaptive pacing mode selection. By measuring conduction delays and determining the optimal mode (BiV or LV), the system achieves necessary cardiac output improvement while minimizing unnecessary battery consumption associated with always-using BiV pacing
3Adaptability or versatility
If conduction delays are measured and analyzed, then optimal pacing mode selection is improved, but measurement precision requirements increase
Solution Approach 1:
The system uses feedback from measured intrinsic conduction times (A/LV intervals and VV intervals) to automatically adjust and determine the optimal pacing mode. The measured conduction delays provide feedback that drives the AV delay calculation and pacing mode selection, improving adaptability while using the feedback loop to compensate for measurement variations
Data Source
AI summary
Systems and methods are provided for detecting arrhythmias in cardiac activity is provided. The systems and methods include measuring conduction delays between an atria (A) and multiple left ventricular (LV) electrodes to obtain multiple intrinsic A/LV intervals, measuring conduction delays between a right ventricular (RV) and the multiple LV electrodes to obtain multiple intrinsic VV intervals. The systems and methods include calculating a first atrial ventricular (AV) delay based on at least one of the intrinsic A/LV intervals, and calculating a second AV delay based on at least one of the intrinsic VV intervals. The systems and methods include selecting a biventricular (BiV) pacing mode or an LV only pacing mode based on a relation between the first and second AV delays, and delivering a pacing therapy based on the selecting operation.