Influence of hypoxemia on structural and functional conditions of heart chambers and NT-proBNP level in patients suffering with chronic obstructive pulmonary disease
The following functional features of cardiovascular system in patients with COPD are described in this article: decrease of partial oxygen arterial pressure (РаО2, mm Hg), increase of blood shunting in pulmonary circulation (Qs/Qt, %) and alveolar-arterial pressure difference (РА-аО2, mm Hg) in com- parison with standard reference ranges. There were determined the risk factor of cardiac muscledamage (oxygen arterial capacity decrease - CO2, ml/l) and pathogenetic factor (pulmonary circula- tion blood shunting increase - Qs/Qt, %) having effect on pulmonary blood pressure, РаО2 and СаО2.