University of Illinois at Chicago, School of Medicine, Chicago, Illinois, USA.
Curr Opin Obstet Gynecol. 2011 Oct;23(5):328-33. doi: 10.1097/GCO.0b013e32834ad5a5.
This review presents the most up-to-date information regarding available methods, safety, efficacy, and availability of emergency contraception for adolescents.
Recent reanalysis suggests that previously reported efficacy rates for the levonorgestrel-only method emergency contraception were probably overestimated. A newer and more efficacious method of emergency contraception, ulipristal acetate, was FDA approved in August 2010.
Emergency contraception provides young women with an opportunity to prevent pregnancy in the event of unprotected sexual intercourse. Several dedicated products are available commercially in the USA with varying efficacy rates. Barriers, including cost and accessing emergency contraception within the designated time frame, often prevent use among young women.
本综述介绍了最新的关于青少年可获得的紧急避孕方法、安全性、有效性和可及性的信息。
最近的重新分析表明,以前报告的左炔诺孕酮紧急避孕方法的有效率可能被高估了。一种新的、更有效的紧急避孕方法——醋酸乌利司他,于 2010 年 8 月获得 FDA 批准。
紧急避孕为年轻女性提供了一种在无保护性行为后防止怀孕的机会。在美国,有几种专门的产品在商业上销售,其有效率各不相同。障碍,包括成本和在指定的时间内获得紧急避孕,常常阻止年轻女性使用。