铜7宫内节育器：5年评估。
The copper-7 intrauterine contraceptive device: 5-year evaluation.
作者信息
Sellors J W
出版信息
Can Med Assoc J. 1981 Oct 1;125(7):717-20.
Over a 5-year period a family practitioner inserted copper-7 (Cu-7 intrauterine contraceptive devices (IUDs) in 134 women. The rates of continued use after 2 years, 53.0% for the women's first IUD and 63.9% for all their IUDs, and of accidental pregnancy, 2.4%, are comparable to those in the literature. However, in this series the rate of expulsion was 0.8%, much lower than that in the literature. Fertility did not appear to be reduced in women who planned to have pregnancies after the device was removed. A carefully scrutinized technique of insertion and conscientious follow-up make the Cu-7 IUD an acceptable form of contraception for many patients in a family practice.
在5年时间里，一名家庭医生为134名女性插入了铜-7（Cu-7）宫内节育器（IUD）。两年后的持续使用率，首次使用IUD的女性为53.0%，所有IUD的持续使用率为63.9%，意外怀孕率为2.4%，与文献中的数据相当。然而，在这个系列中，排出率为0.8%，远低于文献中的数据。取出节育器后计划怀孕的女性，其生育能力似乎并未降低。仔细检查插入技术并认真随访，使得Cu-7宫内节育器成为家庭医疗中许多患者可接受的避孕方式。
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