[Long-term dirotone treatment of patients with chronic obstructive bronchitis complicated by cor pulmonale]

52 patients with chronic obstructive bronchitis complicated by chronic decompensated cor pulmonale participated in the trial of dirotone. Effects on the clinical course and hemodynamics were assessed in the course and long-term treatment. A dirotone course was found to benefit central and pulmonary hemodynamics while a long-term dirotone treatment relieves symptoms of cardiac failure and raises life quality in the absence of negative effects on blood biochemistry, electrolytic balance and external respiration function.