The effect of raloxifene on cardiac autonomic regulation in osteoporotic women

American Journal of Obstetrics and Gynecology
Mert GolCemal Posaci

Abstract

There are suggestive data that raloxifene may have favorable effects on the arterial systems in postmenopausal women and thereby lowering the incidence of future adverse cardiovascular events. Reduction of heart rate variability appears to be a marker for identifying subjects with an increased risk for cardiac mortality, particularly in patients after myocardial infarction and in elderly people. Although there are conflicting data with regard to the effects of estrogen and progesterone on heart rate variability in postmenopausal women, the impact of raloxifene treatment on heart rate variability is fully unknown. Forty-three osteoporotic postmenopausal women were recruited in a prospective, randomized, and placebo-controlled 6-month study. Of these women, 23 received raloxifene hydrocloride, 60 mg once daily, whereas 20 women received alendronate, 10 mg daily. Time and frequency domains of heart rate variability were measured at baseline and at 3 months and 6 months of the treatment. Time domain indices of heart rate variability, mean RR, and SD of all beat-to-beat intervals remained identical within the groups at the end of treatment. The square root of the mean of the sum of squares of successive RR intervals, a sensitive ind...Continue Reading

References

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