[Radionuclide ventriculography in assessing left ventricular contractile function in patients with I-stage hypertension].

The general and local ejection fractions (EF) of the left ventricle were studied in 112 patients with grade I hypertensive disease and in 20 practically healthy persons at rest and during static isometric loads. At rest general and local EF were diverse. During loads both reduction and increase of general EF were observed. Increase of general and local EF is a result of adequate physiological reaction of the myocardium while their reduction indicates limitation of the myocardial reserve of the left ventricle.