| 摘要 |
<p>The stimulator has a de-synchronising mode for ventricular stimulation when the auricular rhythm exceeds an admissible level. The stimulator is then progressively re- synchronised in case of return to an admissible auricular level. The method has the following stages: a) at each detection of a de-polarisation auricular a window of auricular rhythm acceleration detection(DARA) is defined whose duration is a function of the anterior auricular rhythm., which is evaluated after one or several preceding auricular intervals. b) on detection of the following auricular de-polarisation, the rate of an escape auricular interval(IEA) is counted. c) if this de-polarisation is present in the DARA window, if necessary, consecutive auricular control is made as a function of the defined IEA. During stage a) the duration of the window DARA is adapted to the anterior auricular rhythm so as to define a long window for a rapid rhythm and a short window for a slow rhythm, in a manner which permits discrimination between extra-systoles auricular(ESA) and physiological accelerations of the auricular rhythm.</p> |
