[Circadian rhythms of blood circulation indices in patients with arterial hypertension patients].

Circadian variation in circulatory parameters was examined in patients with essential hypertension and secondary renal arterial hypertension. Systolic and diastolic arterial blood pressure, heart rate, stroke and minute volumes, total peripheral resistance (tetrapolar chest rheography) were measured 6 times daily at 4 hours' intervals. The demonstrated circadian hemodynamic patterns, corresponding to different etiologic variants of arterial hypertension may provide the basis for the development of additional tests to be used in differential diagnosis of these conditions, and more effective medication schedules.