Hemodynamic data in 43 patients with right and left ventricular infarction and 39 with left ventricular infarction were compared. Right atrial pressure, pulmonary capillary wedge pressure, mean pulmonary artery pressure, left ventricular end-diastolic pressure before and after ventricular angiogram, cardiac index, left ventricular stroke volume index, right ventricular stroke work index were evaluated, as well as ratios of right atrial and pulmonary capillary wedge pressure, right and left ventricular end-diastolic pressure, right ventricular end-diastolic and pulmonary capillary wedge pressure, left ventricular ejection fraction calculated from left ventricular angiogram, Berentey's score, and cardiac volume index. Using ONEWAY analysis there was no significant difference between the two groups in period of rehabilitation. In 15 patients with right ventricular infarction regression of ECG changes was observed in lead V3R also without significant influence on hemodynamic data.