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已试验皮下埋植6支含LNG棒,作为一种避孕方法。作者分析了一组应用6支含有LNG棒的妇女和以Copper IUD应用者作为对照组进行一般化学血中某些激素水平的研究。受试者的条件是:18～35岁身体健康;有生育能力;月经正常;非哺乳期;对甾体化合物治疗无禁忌症;无贫血及异常生殖道出血。对照组使用铜T_(200)IUD,条件与上述相同。所应用的埋植物是在聚二甲基硅氧烷中含有均匀分散的LNG的硅橡胶棒,将它装在薄壁硅橡胶管中,每个芯棒长30 mm,含LNG52mg,整个埋植物长34mm,直径为2.4mm
Six subcutaneously implanted LNG rods have been implanted as a method of contraception. The authors analyzed a cohort of 6 women with LNG rods and a study of certain hormone levels in general chemopreventive blood using Copper IUD applicators as controls. Subjects were: 18 to 35 years of physical health; fertility; normal menstruation; non-lactation; no contraindications to steroid treatment; no anemia and abnormal genital bleeding. Control group using copper T_ (200) IUD, the same conditions as above. The implants used were silicone rubber rods containing uniformly dispersed LNG in the polydimethylsiloxane and were mounted in thin-walled silicone rubber tubes each having a length of 30 mm, containing LNG 52 mg, the entire implant Length 34mm, diameter of 2.4mm