[Regional contractility of the left ventricle during the performance of an atrial stimulation test in patients with ischemic heart disease].

Catheterization of the coronary sinus, the atrial stimulation test with repeated ventriculographies and investigation of myocardial metabolism of lactate, and coronary ventriculography were performed in 25 CHD patients. The absence of interrelationships between the gravity of affection of the coronary arteries and changes in left ventricular contractility in the atrial stimulation test, a limited role of quantitative determination of myocardial extraction of lactate and the absence of direct interrelationships between metabolic and mechanical symptoms of myocardial ischemia were established.