[State of Coronary Circulation and Results of 24-Hour ECG Monitoring in Patients with Refractory Angina Pectoris].

The paper compares the data of selective coronary angiography and 24-hour monitoring in 39 patients with refractory angina pectoris. Transient ST-segment changes were revealed in 79% of the patients, ST-segment depression occurring in 54%, ST-segment elevation in 46%, T-wave inversion in 38%. A combination of ST-T interval changes and occurrence of ventricular premature contraction was found in a third of the examinees. There was no statistically significant correlation between the extent of major coronary lesion and the mean length of ST-segment displacements.