[Comparison of bicycle ergometry test data in patients with stenocardia and cardiac-type neurocirculatory dystonia]

The results of the bicycle ergometry test in 274 patients with angina pectoris and 228 patients with cardiac-type neurocirculatory dystonia are analysed. Tolerance to physical exercise was much lower in individuals with angina pectoris than in patients with neurocirculatory dystonia. Changes in the repolarization phase on the ECG were encountered more frequently in patients with angina pectoris (82.7%) than in those with neurocirculatory dystonia (30.7%). Changes in the ST segment prevailed in the former (77.2%) and changes in T wave in the latter (20.3%). Depression of the ST segment by 1 mm and more was recorded in 10.4% of patients with neurocirculatory dystonia. Analysis of additional diagnostic criteria, however, suggested that these individuals had a false-positive test.