[Visceral diabetic polyneuropathy - quantitative determination of respiratory cardiac arrhythmia].

In 100 insulin-dependent diabetics, the degree of the respiratory cardiac arrhythmia as a measure of the participation of the N. vagus in the polyneuropathy is determined by means of the triggered cross-correlation function. The impairment of the respiratory cardiac arrhythmia shows statistical relations to the electroneurographic changes of somatic nerves, to the duration of diabetes and to the occurrence of microangiopathies.