Process of automatic sensitivity monitoring in an implanted apparatus to stimulate, cardiovert, and/or defibrillate a heart, and the kind of apparatus.

摘要

Method for automatic control of sensitivity, for implanted cardiac stimulation, cardioversion and/or defibrillation apparatus. Before the start of each cardiac cycle, the sensitivity threshold is adjusted to a low value (Smax) so as to have maximum sensitivity. On detection of a ventricular complex, the amplitude is measured and the sensitivity threshold S is adjusted to the value of this amplitude. Subsequently, the sensitivity threshold decreases in stages to return to the low value Smax. <IMAGE>