Mechanical and Non-mechanical Factors in Hypertensive Hypertrophy, Their Clinical Roles : 53th Annual Scientific Session of the Japanese Circulation Society
スポンサーリンク
概要
- 論文の詳細を見る
To investigate the clinical roles of mechanical and non-mechanical factors in hypertensive hypertrophy, 125 patients with essential hypertension, 20 with hypertrophic cardiomyopathy (HCM) and 20 with dilated cardiomyopathy (DCM), were studied using echocardiography. The hypertensive patients were separated into 3 groups: those with left ve,ntricular (LV) hypertrophy (H), those without hypertrophy (H(-)) and those with dilatation (D). Group H patients were separated into 3 subgroups: those with subnormal LV end-systolic wall stress (ESS) (HI), those with normal ESS and mild hypertrophy (HIIA), and those with normal ESS and severe hypertrophy (HIIB). The inotropic response to isoproterenol infusion (0.02 μg/kg/min for 5 min) was measured by the increase of fractional shortening (FS) corrected for the decrease of ESS (ΔFS/ΔESS). After antihypertensive treatment for 4.4 ~ 1.7 years, echocardiography was repeated. ΔFS/ΔESS was significantly larger in Hl and HCM than in HIIA, was significantly larger in HIIA than in HIIB in which it was significantly larger than in D and DCM. After the treatment, LV mass decreased significantly except in HI. In conclusion, hypertensive hearts are regulated by mechanical and non-mechanical factors. Non-mechanical factors, for example the function of beta-adrenergic receptors in myocardium, have a variety of influences on myocardium, causing a broad spectrum of clinical features and courses.
- 社団法人日本循環器学会の論文
- 1990-05-20
著者
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Iida K
Department Of Cardiology Tsukuba Memorial Hospital
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Iida Keiji
筑波大学 内科
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Sugishita Yasuro
Cardiovascular Division, Departments of Medicine, Institute of Clinical Medicine, University of Tsuk
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Iida Keiji
Cardiovascular Division, Department of Internal Medicine, Institute of Clinical Medicine, The Univer
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Yukisada Kimihiko
Cardiovascular Division, Department of Internal Medicine, Institute of Clinical Medicine, The Univer
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Sugishita Yasuro
Cardiovascular Division Department Of Internal Medicine And Department Of Gynecology And Obstetrics
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Iida Keiji
Cardiovascular Division Department Of Internal Medicine Institute Of Clinical Medicine The Universit
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Yukisada Kimihiko
Department Of Internal Medicine University Of Tsukuba
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