title: [Heart function changes during pregnancy].
abstract: The aim of the study was to assess the left ventricle (LV) systolic and diastolic functions during normal pregnancy. Patients were divided in 2 groups: women with normal pregnancy (30-40 weeks) and a control group--healthy non-pregnant women. Echocardiography and tissue Doppler imaging (TDI) were registered in both groups. Women age, height and weight were additionally registered. Static handling included correlation analysis with calculation of Pearson and Spirmen pair factors correlation. Obtained data showed that stroke volume during pregnancy plays a key role not only in minute volume increase, but also in its regulation in general. Preload and stroke volume increase during constant heart rate is in need of systolic and diastolic LV walls movement speed and myocardium contractility function increase. Results of our research explain imperfection of pregnant women adaptable mechanisms to hypertransfusions and heavy hypovolemia.
authors: E M
authors: EM
authors: Shifman
authors: N V
authors: NV
authors: Khramchenko
authors: G P
authors: GP
authors: Tikhova
mesh_terms: D016022:Case-Control Studies; D003627:Data Interpretation, Statistical; D003971:Diastole / Q000502:physiology*; D015150:Echocardiography, Doppler; D005260:Female; D005865:Gestational Age; D006321:Heart / Q000502:physiology*; D006334:Heart Function Tests; D006801:Humans; D011247:Pregnancy / Q000502:physiology*; D013599:Systole / Q000502:physiology*; D016277:Ventricular Function, Left / Q000502:physiology