HEART STIMULATOR

摘要

A heart stimulator comprises stimulation energy delivering means (200) intended to deliver stimulation energy through an implanted lead to the heart of a patient, and an atrial arrhythmia detecting means (198). A controlling means is provided to control said energy delivering means to deliver at least one atrial arrhythmia abolishing therapy and after a predetermined time, if continued atrial arrhythmia is detected, antithrombus stimulation energy pulses of lower energy than the defibrillation shock, but with different timing and with sufficient energy for producing atrial contraction for increasing hemodynamic blood transportation away from the atrium and preventing thrombi formation in the atrium. In case of a patient suffering from a chronic or paroxysmal non-curable atrial arrhythmia said controlling means is provided to control said energy delivering means to deliver antithrombus energy pulses without any preceding atrial defibrillation shock for electrical arrhythmia abolishing therapy.