[Studies of coronary circulation in chronic cor pulmonale].

Abstract

Investigations in more than 20 patients have shown that a distinct insufficiency of the coronary cir culation is present in chronic cor pulmonale with accompanying hypoxemia of the myocardium. The impairment of the myocardial oxygen supply causes metabolic, hemodynamic, anatomical and elec trocardiographic changes. Increasing pressure of the lesser circulation due to chronic lung disease is in our opinion not in itself responsible for cardiac changes as found in chronic cor pulmonale. Rather is the coronary circulatory insufficiency with myocardial hypoxemia of equal importance