[Clinical aspect of paroxysmal disorders of heart rhythm]

The clinical analysis of 265 patients with paroxysmal disorders of cardiac rhythm established that 39,6 per cent were with chronic heart diseases, 23,4 per cent--with rheumatic valvular defects, 12,1 per cent--with arterial hypertension, 10,6 per cent--with myocardiopathy with undistinguished etiology, 8,2 per cent--with other diseases, 6,1 per cent--clinically healthy. Supraventricular paroxysmal tachycardia was established in 35,8 per cent, paroxysmal auricular fibrillation--in 37,3 per cent, paroxysmal tachycardia with AV block--15,6 per cent, ventricular tachycardia--11,3 per cent. The duration of the paroxysms in supraventricular tachycardia has lasted for 6,7 years, in auricular fibrillation--3,2 years, in AT with AV block--1,2 years and in ventricular tachycardia--3,4 years. Apart from the basic disease the duration of the paroxysm and heart rate are of importance for the origination of the hemodynamic disorders.