APPARATUS FOR DISCRIMINATION OF VENTRICULAR AND SUPRAVENTRICULAR TACHYCARDIA AND APPARATUS FOR DISCRIMINATING BETWEEN A RAPID HEART RHYTHM OF SINUS ORIGIN AND RAPID HEART RHYTHM OF NON-SINUS ORIGIN

摘要

A method for discrimination between ventricular and supraventricular tachycardia and an apparatus for performing the method. In response to the detection of the occurrence of an tachycardia, stimulus pulses are delivered to one or both of the SA and AV nodal fat pads. The response of the heart rhythm to these stimulus pulses is monitored. Depending upon the change or lack of change in the heart rhythm, a diagnosis is made as to the origin of the tachycardia.