[During life diagnosis of myocardial infarction with involvement of the right ventricle].

The right segments of the heart and pulmonary artery were catheterized and pressure in them measured in 113 patients with acute transmural and macrofocal myocardial infarction. Increased end diastolic pressure in the right ventricle (EDPRV) was over 10 mm Hg and more frequently encountered in antero-inferior (in 70%) and inferior (in 31.5%) localization of myocardial infarction (p less than 0.05) which is due, as the authors believe, to the concomitant lesion of the right ventricle. Several possible haemodynamic variants of concomitant lesions of the right and left ventricles are described. A number of autopsy studies are given confirming that enhanced EDPRV in normal or moderately raised end diastolic pressure in the pulmonary artery points to the involvement of the right ventricle. At the same time only in a part of patients the clinical and ECG data alone suggested involvement of the right ventricle.