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首页> 中文期刊> 《生殖医学杂志》 >Sonographic assessment of carotid artery in postmenopausal women receiving long-term low-dose hormone replacement therapy

Sonographic assessment of carotid artery in postmenopausal women receiving long-term low-dose hormone replacement therapy

         
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Objective: The aim of this study was to determine the influence of long-term low-dose hor mone replacement therapy (HRT) on the intima-media wall of the carotid artery in postmenopa usal women by ultrasound.Methods: 146 postmenopausal women were divided into the HRT group(n= 68, HRT over 5years after menopause) and the control group(n= 78, no HRT). The intima-media thickness (IMT) of the carotid arteries was measured bilaterally, the characteristics of the atherosclerotic plaques were described, the peak systolic velocity (PSV) and resistance index (RI) were measured by ultrasound examination.Results: The IMT of HRT group was significantly smaller than that of the control group,(0. 089±0. 22) cm vs (0. 093±0.29) cm, (P＜0. 01). The occurrence of plaques was reduced in HRT group than the control group (7.7% vs 12.7%, P＜0. 05). The plaques were most frequently found at the bifurcation of the arteries. The soft and mixed plaques in HRT group were found significantly less than that of the control group (soft 1.7% vs 4. 5%, mixed 3.1% vs 6. 7%, both P＜0.05), while the hard plaques in HRT group were more than those of the control group(2.6% vs 1.3%, P＜0. 05). The maximum plaque thickness of HRT group was less than that of control group (0. 191±0. 057) cm vs (0. 226±0. 073) cm, (P＜0.05). The internal carotid artery PSV and RI in the two groups were similar [PSV (65.61±26.55) cm/s vs (64.82±27. 22) cm/s, RI (0.67±0. 082) vs (0. 68±0. 075), both P＞0.05].Conclusion: Our study indicated that HRT may has an effect to reduce the carotid IMT thickness, inhibit the plaque formation, and make the plaques harder and more stable. The long-term low-dose HRT may protect the postmenopausal women against the artherosclerosis of the carotid artery.

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