Method and apparatus for processing cardiac signals

The invention relates to an electromedical implant having a far-field detecting unit that is connected to at least two implantable electrodes, or to connect, one of which is to be placed in the right atrium or right ventricle electrode is formed at least over the connection for the right in the right atrium or receiving ventricle to be placed electrode and another electrode, a far-field electrocardiogram. According to the invention, the far-field detecting unit is connected to a far-field electrocardiogram evaluation unit which is designed to detect in an image captured by the far-field detecting unit far-field at an excitation or contraction of a left atrium and / or left ventricle of a heart associated signal characteristics of the far-field.