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Adaptive rate programming control in implantable medical devices using ventricular-arterial coupling surrogates
Adaptive rate programming control in implantable medical devices using ventricular-arterial coupling surrogates
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机译:使用心室-动脉耦合替代物的可植入医疗设备中的自适应速率编程控制
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摘要
Selection of an appropriate rate programming control (RPC) setting in an implantable medical device (IMD), uses analysis of VA coupling surrogate conditions. The VA coupling surrogate conditions are derived from signals such as cardiogenic impedance, blood pressure, and the pulsatile components of PPG. By analyzing a waveform of the measured surrogate condition, the IMD estimates wall stiffness, through the slope of the waveform, and peripheral arterial pressure, through the reflection time between the main wave and reflection wave of the waveform. These values are plotted against each other on a VA coupling coordinate plane. Based on the location and orientation of the resulting VA coupling plot, the IMD selects an appropriate RPC setting.
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