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Clinical Studies on Arterial Blood Pressure Changes Caused by Tilting from Horizontal to Head-up Position

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Title: Clinical Studies on Arterial Blood Pressure Changes Caused by Tilting from Horizontal to Head-up Position
Authors: Igarashi, Katsuro
Issue Date: 14-Dec-1990
Citation: Acta medica Nagasakiensia. 1990, 35(1-4), p.33-38
Abstract: In the realm of pediatrics particularly children of school age, those who complain of dizziness, lightheadedness of the like without any organic diseases are diagnosed as having orthostatic dysregulation (OD). With the subject in the supine position on a tilting table, the systolic pressure (SP), diastolic pressure (DP), heart rate (HR), stroke volume (SV), cardiac output (CO) and total peripheral resistance (TPR) were examined for the supine position (S) and tilting position at 20゚ (T) using the Korotkoff Sound Graph recorder. SP fell off significantly and an incerase of HR was small when the posture has been changed from S to T in the OD group compared with the control group. The findings above suggest that these changes are due to the decrease of vagal activities being not predominant or to the increase of sympathetic activities not being so conspicuous in OD group. Regarding compliants such as dizziness, lightheadedness and poor waking without any organic change in the realm of pediatrics, particularly children from higher classes of primary schools to junior high schools, we grasp them as a syndrome, diagnose it as orthostatic dysregulation (OD) 1) and give guidance on the daily life and pharmacotherapy in accordance with symptoms. The criteria for diagnosis of OD are shown in Fig. 1 2). On the basis of the nature of complaint, OD was divided into major symptoms and minor symptoms. The major symptoms consist mainly of cardiovascular symptoms and the minor symptoms are made up of gastrointestinal symptoms. The mechanism by which major symptoms are produced was studied by a noninvasive method from the aspect of hemodynamics centering around the arterial blood pressure.
URI: http://hdl.handle.net/10069/15808
ISSN: 00016055
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 35, No. 1-4

Citable URI : http://hdl.handle.net/10069/15808

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