Apparatus and method for treating tachyarrhythmias wherein the presence of a patient tachyarrhythmia is detected and a first antitachyarrhythmia therapy (antitachycardia pacing) is given at a first energy level. The haemodynamic condition of the patient is measured and a length of time to therapy switchover...http://www.google.de/patents/US4895151?utm_source=gb-gplus-sharePatent US4895151 - Apparatus and method for therapy adjustment in implantable
