System and method for the visualization and optimization of cardiac resynchronization therapy
AssigneeSorin Crm SAS
InventorRAMI ROM
Life of this patent
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Abstract
A system and method for optimizing cardiac resynchronization therapy and visualizing cardiac pacing intervals. The system comprises at least one hemodynamic sensor; at least one electrode; a learning module; a micro controller; and at least one graphical interface for showing at least one of a PRV vs. PLV diagram and a responder curve.
Claims12
A system for optimizing cardiac resynchronization therapy and visualizing cardiac pacing intervals, the system comprising:
- at least one hemodynamic sensor for monitoring hemodynamic performance of the heart, comprising at least a stroke volume value;
- at least one electrode for sensing at least one event selected from the group consisting of:
- a right atrium event, a right ventricle event and left ventricle electrogram event;
- and in turn for pacing at least one of the right atrium, right ventricle or left ventricle;
- a learning module that learns to adapt at least one of:
- atrio-ventricular (AV) delay intra-ventricular (VV) interval, as sensed by said at least one electrode, relatively to the hemodynamic performance of the heart as reflected in the stroke volume sensed by said at least one hemodynamic sensor;
- a micro controller for controlling said learning module;
- at least one pulse generator controlled by said micro controller, for stimulating the heart with optimized atrio-ventricular (AV) delay intra-ventricular (VV) interval parameters;
- and
- at least one graphical interface for showing at least one of:
- a PRV vs. PLV diagram and a responder curve.
A method of visualizing optimized cardiac pacing intervals, generated by a system comprising at least one hemodynamic sensor, at least one sensing electrode and at least one pacing electrode, a learning module, a micro controller, a pulse generator and at least one graphical interface, said method comprising the steps of:
- providing at least a PRV vs. PLV diagram that visualizes a self convergence to optimal values of paced atrioventricular delay and interventricular interval character to an optimized hemodynamic performance;
- determining the optimal atrioventricular delay at all heart rates according to said PRV vs. PLV diagram;
- and
- determining the optimal interventricular interval at all heart rates according to said PRV vs. PLV diagram.
A system for a remote monitoring of an adaptive cardiac resynchronization therapy device performance, for monitoring the patient's hemodynamic response to pacing with dynamically optimized atrioventricular delay and interventricular interval parameters and pacing consistency beat after beat in both rest and exercise, comprising:
- a graphical interface of a remote computer;
- at least one responder curve presenting the internally calculated stroke volume obtained by an implanted hemodynamic sensor, said responder curve, being displayed on said graphical interface;
- and
- a means for communicating said internally calculated stroke volume to said remote computer.
Dependencies are inferred from the claim text.