Method and device for determining whether electrical signals in a heart are caused by an atrial depolarization

摘要

The invention relates to a method for determining whether electrical signals in a heart are caused by atrial depolarizations or ventricular depolarizations. When heart signals are sensed in the upper part of the ventricular heart tissue, preferably the upper part of the ventricular septum (10), the detection of heart signals from both the atrium and ventricle and identification of depolarization is facilitated if the course of the signals is sensed, whereby monophasic heart signals are caused by an atrial depolarization and biphasic signals are caused by a ventricular depolarization.