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  • Title: Effects of hormone replacement therapy on office and ambulatory blood pressure in Japanese hypertensive postmenopausal women.
    Author: Sumino H, Ichikawa S, Kumakura H, Takayama Y, Kanda T, Sakamaki T, Kurabayashi M.
    Journal: Hypertens Res; 2003 May; 26(5):369-76. PubMed ID: 12887127.
    Abstract:
    No study has demonstrated that hormone replacement therapy (HRT) affects blood pressure (BP) measured by 24-h ambulatory blood pressure monitoring (ABPM) in Japanese postmenopausal women (PMW) with normotension or mild-to-moderate essential hypertension. In the present study, we examined the effects of HRT on office BP and 24-h ambulatory blood pressure (ABP) in Japanese hypertensive or normotensive PMW. Thirty-one hypertensive (HT-HRT group) and 17 normotensive PMW (NT-HRT group) received HRT (0.625 mg of conjugated equine estrogen combined with 2.5 mg of medroxyprogesterone acetate) orally for 12 months, and 30 hypertensive (HT-Control group) and 19 normotensive PMW (NT-Control group) did not receive HRT. In all of the hypertensive PMW, BP was controlled by a variety of antihypertensive drugs before starting HRT. The hypertensive PMW were divided into two groups according to the results of ABP before HRT: nondippers (those without a diurnal change in BP) and dippers (those with a diurnal change in BP). In all patients, office BP measurements and 24-h ABPM were performed before and 12 months after the start of HRT. HRT did not change either the office or the 24-h ambulatory systolic, diastolic, or mean BP in any of the groups. Therefore, HRT did not significantly alter the proportion of nondippers. We conclude that with respect to BP, HRT might not be harmful in hypertensive PMW whose BP has been well-controlled prior to the initiation of HRT, as well as in normotensive PMW.
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