[Diagnosis of predisposition to chronic cor pulmonale formation in occupational lung diseases caused by dust].

Study covered 426 miners aged 40-54 years with previously diagnosed occupational respiratory diseases due to dust (246 patients with chronic occupational obstructive bronchitis, 98 with anthracosilicosis and 82 with chronic dust nonobstructive bronchitis). 315 (73.9%) examinees out of 426 with lung diseases due to dust demonstrated chronic cor pulnmonale. Considering high share of this complication, the authors used Bayes method to create a method to diagnose predisposition towards chronic cor pulmonale in patients with dust lung diseases through respiratory failure, concomitant coronary heart disease and arterial hypertension, blood groups ABO, MN and P, some structural and functional parameters of heart: myocardium weight index, relative wall thickness index and left ventricle sphericity index, average lung artery pressure. Increasing number of analyzed factors that directly influence chronic cor pulmonale development and selecting additional markers help to improve forecasting of the complication.

[Structural and functional changes in myocardium at rest and under exertional test in dust bronchitis patients having coronary heart disease and arterial hypertension].

The estimation of structural-functional state of right and left heart before and after loading test at patients suffered from chronic mechanic bronchitis in combination with ischemic heart disease and arterial hypertension is carried out using an echocardiography method. It is revealed that the combination of chronic mechanic bronchitis, ischemic heart disease and arterial hypertension results in remodelling both ventricles and hastens chronic pulmonary heart development.