The case of woman patient suffering from W.P.W. syndrome and recurrent attacks of supraventricular paroxysmal tachycardia refractory to medical treatment is reported. After electrophysiological study, a radiofrequency coil is implanted. This is activated by the patient during attacks and leads to rapid interruption. The modalities under which paroxysmal tachycardias are interrupted by means of electrostimulating units are discussed and indications for radiofrequency stimulation assessed.
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