使用含铜宫内节育器的女性子宫内膜下-肌层收缩性的经阴道超声评估
Transvaginal sonographic evaluation of subendometrial-myometrial contractility in women using a copper-releasing intrauterine device.
作者信息
Salamanca Alberto, Carrillo María Paz, Beltrán Estanislao, Clavero Pedro A
机构信息
Servicio de Ginecología y Obstetricia, Hospital Universitario Virgen de las Nieves, 18014 Granada, Spain.
出版信息
Contraception. 2008 Jun;77(6):444-6. doi: 10.1016/j.contraception.2008.01.010. Epub 2008 Apr 10.
BACKGROUND
The aim of this study was to determine the effects of a copper-releasing intrauterine device (IUD) on myometrial contractility midway through the menstrual cycle.
STUDY DESIGN
Uterine peristalsis was studied midway through the cycle with transvaginal sonography in two groups of women, a control group and women in whom a copper-releasing IUD had been inserted.
RESULTS
The results showed that 12 months after insertion, no uterine motility could be detected with sonography in any of the women with an IUD, but motility did occur in all the controls.
CONCLUSIONS
Subendometrial-myometrial contractility midway through the menstrual cycle had been abolished in patients with a copper-releasing IUD. The loss of motility may inhibit sperm transport from the cervix to the oviduct and account for at least part of the contraceptive effect of these devices.
背景
本研究的目的是确定含铜宫内节育器（IUD）在月经周期中期对子宫肌层收缩性的影响。
研究设计
通过经阴道超声对两组女性在月经周期中期的子宫蠕动情况进行研究，一组为对照组，另一组为已插入含铜IUD的女性。
结果
结果显示，插入IUD 12个月后，超声检查未在任何带IUD的女性中检测到子宫蠕动，但所有对照组女性均有子宫蠕动。
结论
含铜IUD患者在月经周期中期子宫内膜下-子宫肌层的收缩性已被消除。蠕动的丧失可能会抑制精子从宫颈向输卵管的运输，这至少是这些节育器避孕效果的部分原因。
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