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Effect of Enalapril on Left Ventricular Mass and Diastolic Hemodynamics in Hypertensive Patients:A study with pulsed Doppler echocardiography Miwa Sasaki 1 , Takashi Oki 1 , Nobuo Fukuda 1 , Arata Iuchi 1 , Tomotsugu Tabata 1 , Keiji Kawahara 2 , Takeo Ishimoto 3 , Toshihiko Tominaga 4 , Hidesato Okushi 5 , Takashi Fujimoto 6 , Susumu Ito 1 1Second Department of Internal Medicine, University of Tokushima 2Tokushima Prefectural Central Hospital 3National Sanatorium Higashitokushima Hospital 4Tominaga Clinic 5Anan Central Hospital of the Medical Association 6Tokushima Prefectural Kaifu Hospital Keyword: 高血圧症 , ACE阻害薬 , 左室拡張動態 , 左室心筋重量 , hypertension , ACE inhibitor , LV mass , LV diastolic hemodvnamics pp.69-75
Published Date 1995/1/15
DOI https://doi.org/10.11477/mf.1404900991
  • Abstract
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Several studies have demonstrated that angiotensir converting enzyme (ACE) inhibitors lead to a significant regression of left ventricular (LV) hypertro-phy and improvement of LV diastolic function. But it is unclear whether its mechanism is based on reduction in afterload or other factors. To assess the effect of enalapril on LV wall mass and diastolic hemodynamics. we recorded left ventricular inflow velocity pattern (LVIF) by pulsed Doppler echocardiography before and after six months of treatment with enalapril in 25 patients with essential hypertension, including 6 with LV hypertrophy and 16 without LV hypertrophy. After enalapril, 1) mean blood pressure decreasedsignificantly in all patients. 2) LV wall mass decreased slightly in patients with LV hypertrophy, 3) the ratio (A/E) of the peak velocity of an atrial contraction wave (A) to an early diastolic wave (E), deceleration time (E-DT) of the early diastolic wave and isovolumic relaxation time (IRT) decreased significantly in all patients. 4) the decreasing rate of A/E or LV wall mass and the duration of high blood pressure had a good positive correlation. In conclusion, antihypertensive treatment with enalapril led to a significant improve-ment of LV diastolic failure without reference to its LV hypertrophy. and its effect was more remarkable in patients with a shorter history of hypertension.


Copyright © 1995, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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