title: [Short-term and average-term automatic control of re-entry arrhythmias].
abstract: The AA. described an external stimulator to be utilized instead of invasive pharmacological treatment, as a short and middle-time therapeutic approach to re-entry tachycardia, in Departments of cardiology. The device must be connected with an electrode placed in atrium or in coronary sinus or in ventricle, according to individual request. A frequency discriminant device recognizes tachycardia and activates automatic scanning stimulator, synchronized on R or P waves, with progressive 5 msec stop delay; tachycardia interruption zone is automatically individuated. Stimulation has an automatic stop when tachycardia is interrupted; in case of persistent tachycardia scanning-function cycle will star again automatically. The device, which can be programmed for a simple or a double impulse emission, is equipped with a demand stimulator working if post-tachycardia asystole is present. Frequency discriminant device activates the scanning function beyond a defined threshold which can be varied within a wide range of frequencies.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000628:therapy*; D002304:Cardiac Pacing, Artificial; D006801:Humans; D010138:Pacemaker, Artificial; D011846:Radio Waves; D013610:Tachycardia / Q000628:therapy
vernacular_title: Controllo automatico a breve e medio termine delle aritmie da rientro.