title: [Orthostatic ECG changes in hypertension].
abstract: During an orthostatic test, most patients with first-stage essential hypertension showed unfavorable ECG changes that were more common in cases of marked orthostatic tachycardia. As the disease progressed, the incidence of unfavorable orthostatic ECG changes declined, apparently due to depressed sympathoadrenal activity common to stable hypertension.
mesh_terms: D000328:Adult; D001794:Blood Pressure; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011187:Posture
vernacular_title: Izmeneniia EKG v ortostaticheskom polozhenii pri gipertonicheskoĭ bolezni.