[Partial atrial standstill with sick-sinus-syndrome accompanying a case of cardiomyopathy (author's transl)].

In a patient with cardiomyopathy of unknown etiology and clinical manifestation of SSS (sick-sinus syndrome) the electro-physiological examination and the registration of pressure curves indicated a mechanical and electrical partial standstill of both atria. Some electro-physiologically interesting phenomena found during the His-catheterization are described.