Cardiac arrhythmia detection device using a two-chamber detection method.

摘要

An algorithm for classifying cardiac arrhythmias comprising multiple stages and dual chamber sensing. A first stage includes the steps of comparing ventricular and atrial rates and declaring that the heart is in atrial tachycardia or atrial fibrillation on the one hand, or that the heart is in ventricular fibrillation on the other hand. The second stage is entered if no determination is made in the first stage and, in particular, when the atrial rate equals the ventricular rate. A third stage is entered in which the heart is paced (ventricular, atrial or both) at a predetermined rate for a set period of time. Cardiac rhythm classification is made based on heart responses during and after pacing.