Carotid and uterine vascular resistance in short-term hormone replacement therapy postmenopausal users

Effect of conjugated estrogen versus conjugated estrogen associated with medroxyprogesterone acetate in postmenopausal women on internal carotid artery pulsatility index: A randomized pilot study

“…Lazar et al . showed reduced impedance flow in uterine circulation, but not in the internal carotid, after 12 weeks of treatment 16 …”

“…Lazar et al showed reduced impedance flow in uterine circulation, but not in the internal carotid, after 12 weeks of treatment. 16 Although recent articles do not confirm an antagonistic effect of progestin on estrogen action, the effect of progestin is still uncertain. A randomized double blind, placebo-controlled study using high-resolution magnetic resonance imaging has showed that HT improved carotid artery compliance and distensibility in healthy postmenopausal women.…”