[Primary pulmonary hypertension in adults].

Primary pulmonary hypertension is a rare disease of unknown etiology which relates to the precapillary form of the hypertension. The review of the literature and authors' data on the changes of pulmonary vessels and the heart weight are presented. So-called plexiform structure characteristics for this pathology are considered by the authors as glomus anastomoses developing as a compensation of pulmonary circulation disturbances.

[Fructosuria in pyodermitis].

Oscillopolarographic studies of fructosuria in 112 patients with pyodermatitis have helped assess their carbohydrate metabolism and, specifically, the enzymic function of the liver. 89.3% of patients have developed increased fructose and fructose diphosphate excretion, vs.

[Drug-induced bullous dermatitis - Lyell's syndrome].

Three section observations of drug dermatitis which had developed against the background of treatment of acute respiratory diseases (Lyiell's syndrome) with sulphamides, antibiotics, and aspirin are presented.

[Changes in the central nervous system in acute viral respiratory infections].

On the basis of a clinico-morphological analysis of 50 cases with acute respiratory viral infections, developing clinically with brain symptoms, the authors distinguish 2 main factors, influencing their development. The main factors consist in a evicious circles of respiratory disorders which causes the appearance of toxico-hypoxic encephalopathy. Encephalitis of an immuno-allergic nature are seen less frequently and may appear soon after acute respiratory viral infections.

[Age-specific aspects of hemodynamic and morphological changes of the pulmonary vessels in tetralogy of Fallot].

The results of investigations of 50 patients with tetralogy of Fallot aged from 5 months to 15 years, made prior to surgery, and of 14 others, examined after palliative operations, furnished grounds for assessing hemodynamic and morphological changes in the pulmonary vessels as viewed in an age-specific aspect. The patients underwent catheterization of the heart, angiocardiography and histological investigation of the pulmonary tissue. In each age group the characteristics of the cardiac cycle in the right ventricle, minute volume and cardiac index, hemodynamic indices of the lesser circulation, pulmonary and greater circulation vessels resistance were analyzed.