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ACTIVE IMPLANTABLE MEDICAL DEVICE FOR DETECTING A REMODELING OR REVERSE REMODELING PHENOMENON OF THE PATIENT
ACTIVE IMPLANTABLE MEDICAL DEVICE FOR DETECTING A REMODELING OR REVERSE REMODELING PHENOMENON OF THE PATIENT
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机译：用于检测患者重塑或逆重塑现象的有源可植入医疗设备
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摘要
According to some embodiments, a device operates by comparative morphological analysis of depolarization signals collected in spontaneous rhythm on separate respective channels, with two temporal components combined into a single 2D parametric VGM vectogram characteristic. Similarity quantification methods evaluate a variation over time of a descriptor parameter of a current VGM compared to a stored previous reference VGM. This variation is compared with predetermined thresholds to diagnose an occurrence of remodeling or reverse remodeling in a patient, and/or to detect a lead failure or an occurrence of ischemia. The descriptor parameter is a function of a velocity vector of the VGM, a comparison relating to a correlation coefficient between respective magnitudes of a current VGM velocity vector and of a reference VGM velocity vector, and an average angle between these respective velocity vectors.
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