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我所自1985年5月以来,先后为150名已婚育龄(23～45岁)频脱环(2次以上)妇女改放置天津医疗器械四厂生产的Tcu220C型子宫内节育器(IUD),于放器后第1、3、6、12月分别由所在区保健医生随访观察,按统一标准、统一表格记录。结果:Tcu220C型IUD的脱落率为0.66%(1/150例),由于副作用因症取出率为2.00%(8/150),一年续用率为97.33%,(146/150例),带器妊娠率为0。与本县某区1986年调查资料:金属单环因症取出率为1.00%,1年续用率为75.20%,带器妊娠率为14.20%相比较,可见Tcu
Since May 1985, I have changed the placement of the Tcu220C IUD, manufactured by the Tianjin Medical Device Factory No. 4, to 150 women of childbearing age (23-45 years old) At the 1st, 3rd, 6th and 12th month after the device was released, the follow-up visits were made by the local health care practitioners, and the records were unified according to unified standards. Results: The shedding rate of Tcu220C type IUD was 0.66% (1/150 cases). The rate of one-year follow-up was 97.33% (146/150 cases) because of the rate of removing side effects was 2.00% (8/150) Pregnancy rate was 0. And a survey of a district in 1986: a single ring of metal removal rate of 1.00%, 1-year recuperation rate of 75.20%, with a pregnancy rate of 14.20% compared with Tcu