Patent ID: 7881786
Filing Date: 2011-02-01
Classification: A61B,A61N

Abstract:
1. A method of controlling delivery of therapy in a medical device, comprising: sensing physiologic signals of a patient; delivering the therapy in response to the sensed signals; determining the presence of increased myocardial irritability that occurs in response to the delivered therapy; and adjusting an upper pacing rate limit associated with the delivering of the therapy to an adjusted upper pacing rate limit below a programmed upper pacing rate limit in response to determining the presence of increased myocardial irritability occurring in response to the delivered therapy, wherein determining the presence of increased myocardial irritability comprises detecting one of a non-sustained ventricular tachycardia event that spontaneously reverts to normal sinus rhythm, a non-sustained ventricular fibrillation event that spontaneously reverts to normal sinus rhythm, a minimum rate of premature ventricular contractions, and prediction of a ventricular tachycardia cluster.