Method and apparatus for cyclic ventricular pacing starting at a rate just above the intrinsic atrial firing rate (overdrive pacing), followed by relaxation to a rate just below the intrinsic atrial firing rate (ventricular escape). The method and apparatus can be applied to one or both ventricles, and...http://www.google.de/patents/US6141586?utm_source=gb-gplus-sharePatent US6141586 - Method and apparatus to allow cyclic pacing at an average rate just above the intrinsic heart rate so as to maximize inotropic pacing effects at minimal heart rates
