Lehfeldt H
Zentralbl Gynakol. 1977;99(24):1473-83.
The IUD is an excellent and very effective contraceptive method. As contraception and coitus are separated, this technique is acceptable to many couples. It provides prolonged protection and cannot be "forgotten" like the Pill, the diaphragm, or the condom. Its pregnancy rate is 2 per 100 women per year. The greatest clinical experience exists with the Lippes loop. The loop should be the method of choice for parous women, the Copper-T for the nullipara and nulligravida. Regularly menstruating women should be advised to use additional contraceptive protection (condom, diaphragm, coitus interruptus, foam) during the week of highest fertility. This will make the IUD as effective as the Pill. Physicians prescribing this method should be available 24 hours per day for their patients, as emergency situations such as P.I.D., ectopic pregnancy, septic abortion--rare as they are--would need prompt attention.
宫内节育器是一种出色且非常有效的避孕方法。由于避孕与性交分开，这项技术为许多夫妇所接受。它提供长效保护，不会像口服避孕药、子宫托或避孕套那样被“遗忘”。其每年每100名女性的妊娠率为2例。Lippes节育环拥有最丰富的临床经验。对于经产妇，节育环应作为首选方法；对于未产妇和未孕女性，铜T形节育器是首选。应建议有规律月经的女性在生育力最高的那一周使用额外的避孕保护措施（避孕套、子宫托、体外射精、泡沫剂）。这将使宫内节育器与口服避孕药一样有效。开这种方法处方的医生应每天24小时为患者待命，因为诸如盆腔炎、宫外孕、感染性流产等紧急情况——尽管罕见——需要及时处理。
