Chinese experience with intrauterine devices.
Changes in the use of intrauterine devices (IUDs) for contraception in China in the past 10 years are reviewed. Replacement of the inert stainless steel ring with copper-bearing IUDs was an essential decision to improve the efficacy of the IUDs. The most commonly used, TCu380A, TCu220C and MLCu375, and those developed in China, such as the uterine-shaped UCu300 IUD and gamma Cu380 IUD, are reviewed. Studies of MLCu375 and TCu380A for emergency contraception revealed a highly effective method, which could prevent over 96% of unwanted pregnancies. Use of levonorgestrel-releasing system provides both contraceptive and therapeutic effects in the treatment of menorrhagia.
Bilian
Xiao
X
National Research Institute for Population and Family Planning, Beijing, 100081, PR China. xiaobilian@yahoo.com
D002681:China; D003906:Developing Countries; D005193:Family Planning Services / Q000191:economics / Q000379:methods*; D005260:Female; D006801:Humans; D007436:Intrauterine Devices, Medicated / Q000009:adverse effects / Q000191:economics / Q000706:statistics & numerical data*; D016896:Treatment Outcome