[Respiratory function in newly developed stenocardia and in long-term course of ischemic heart disease].

External respiration was evaluated in coronary patients with varying duration of the disease. Bronchial obstruction was not a rare finding especially in patients with a long history of angina pectoris. In most of the patients the obstruction was reversible as shown by respiration parameters upon inhalation of broncholytics with various mechanisms of action. Respiratory disorders were not associated with dyspnea, derangement of gaseous exchange and could not be attributed to attendant bronchopulmonary diseases, smoking as such patients had not been entered in the study. A 3-year follow-up was not indicative of spontaneous progression of bronchial obstruction.