HRT and heart disease: problems and prospects.
The divergent findings of hormone replacement therapy (HRT) from observational and randomized clinical studies are summarized and reasons for the different results are postulated. Chronic use of HRT since menopause has no harmful effects on CHD event rate, while the initiation of therapy after a recent cardiovascular event causes an early increase in recurrent CHD events. Once endothelial dysfunction and atherosclerotic disease has developed, the starting of HRT promotes plaque instability, vascular inflammation and prothrombotic effects. The timing of HRT use since menopause is therefore crucial in the effectiveness and safety of HRT on the vascular system.
Maas
Angela H E M
AH
Department of Cardiology, Isala Klinieken, P.O. Box 10400, 8000 GK Zwolle, The Netherlands. a.maas@diagram-zwolle.nl
van der Graaf
Yolanda
Y
van der Schouw
Yvonne T
YT
Grobbee
Diederick E
DE
D002318:Cardiovascular Diseases / Q000517:prevention & control*; D004334:Drug Administration Schedule; D015914:Estrogen Replacement Therapy; D005260:Female; D006801:Humans; D008593:Menopause