An apparatus comprising a catheter (10), associated with a radiofrequency radio-electric signal generator, adapted to convey said radio-electric signal to the cardiac surfaces in order to repair, regenerate and normalize the electro-physiological, metabolic activities of the heart. The generator comprises a transmitter (13) adapted to produce a radiofrequency electromagnetic field, an antenna (14) to emit said radiofrequency electromagnetic field, a control module (18) and a user interface (19). A conductor (15) connects at one end to the reference ground of the transmitter circuitry and at the other end to the electrode (12).
