STIMULATION WAVEFORM AND SYSTEM FOR POLARITY-INDEPENDENT CARDIAC RESYNCHRONIZATION

摘要

Systems and methods for cardiac rhythm management using a plurality of electrodes are provided, where at least one of the plurality of electrodes is in contact with a cardiac site. In the system and method, at least one sequence of electrical pulses is generated for electrically stimulating cardiac tissues using either of cathodal stimulation and anodal stimulation. Further, the at least one sequence of electrical pulses is applied to the cardiac tissue. In the system and method, the pulse widths in at least a portion of the at least one sequence of electrical pulses are configured to be less than about 1us and to have an amplitude and a frequency so that a threshold for the cathodal stimulation of the cardiac tissues and a threshold for the anodal stimulation of the cardiac tissues are substantially the same.