A placebo-controlled trial of long-term oral combined continuous hormone replacement therapy in postmenopausal women: effects on arterial compliance and endothelial function.

Abstract:

OBJECTIVE:To study the effects of long-term combined continuous oral hormone replacement therapy (HRT) on vascular function in healthy postmenopausal women. BACKGROUND:The cardiovascular effects of HRT are controversial. Improvement in vascular function is a proposed mechanism of oestrogen action but there are no long-term controlled human trials in this area. In this study, we examined the effects of HRT on lipid profiles and vascular function, encompassing both biomechanical arterial properties [systemic arterial compliance (SAC) and pulse wave velocity (PWV)] and endothelial function [flow-mediated vasodilation (FMD)]. METHODS:In this 2-year, double-blind, placebo-controlled study, 59 healthy postmenopausal women were randomized to oral combined continuous oestrogen and progesterone [Kliogest, oestradiol (2 mg), norethisterone (1 mg)] or placebo, with end-points measured at baseline, 6 weeks and after 6,12 and 24 months of treatment. RESULTS:Oral combined HRT reduced lipoprotein a [Lp(a)], although other lipid benefits were not observed. There were no significant changes in SAC, PWV or FMD with oral combined HRT, compared to placebo. CONCLUSION:In this long-term, randomized placebo-controlled trial, oral continuous HRT with combined oestradiol and norethisterone in healthy postmenopausal women did not improve a spectrum of indices of arterial function compared to placebo. These results suggest that HRT might not be of cardiovascular benefit in postmenopausal women.

journal_name

Clin Endocrinol (Oxf)

journal_title

Clinical endocrinology

authors

Teede HJ,Liang YL,Kotsopoulos D,Zoungas S,Cravent R,McGrath BP

doi

10.1046/j.1365-2265.2001.01382.x

keywords:

subject

Has Abstract

pub_date

2001-11-01 00:00:00

pages

673-82

issue

5

eissn

0300-0664

issn

1365-2265

journal_volume

55

pub_type

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