[Nocturnal asystolia revealed with Holter monitoring in asymptomatic hypokinetic arrhythmia. Report of two cases (author's transl)].

The Authors report on two cases of hypokinetic arrhythmia with good ventricular rate during the day. In these cases the Holter monitoring showed, during the night, a marked slow down of the cardiac rhythm with short period of cardiac arrest up to 4280 ms. The Authors would like to underline the prognostic and therapeutic importance of the above said remarks, also mentioned by others in the most recent literature, and the necessity to go deeply in to the meaning of these events specially about possibility of sudden death and cerebral hypossia, during the slow down of cardiac rhythm. In both cases a good therapeutic effect, consisting in a complete normalization of the cardiac rate, has been optained with sustained preparation of sympaticomimetic and vagolitic drugs. On the basis of their experience, the Authors think that, in these cases, the pharmacologic therapy, neglected during the last years, could give a good therapeutical result.