Steinauer Jody, Autry Amy M
Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, CA 94110, USA.
Obstet Gynecol Clin North Am. 2007 Mar;34(1):43-55, viii. doi: 10.1016/j.ogc.2007.01.001.
Extended cycle contraception is a safe and acceptable form of contraception and may be more efficacious than cyclic regimens, especially for users of oral contraceptive pills. Most extended cycle regimens result in fewer scheduled bleeding episodes, an outcome desired by many women. They may also result in more unscheduled bleeding and/or spotting episodes that decrease with time. Women who use extended cycle contraception experience fewer menstrual symptoms, particularly headache. Some women have medical conditions or menstrual symptoms that make extended cycle contraception a preferred method. Although we do not have enough data to recommend one particular extended cycle regimen over another, the use of these new regimens will provide women with more options, and almost certainly will improve the acceptability and efficacy of hormonal contraception. In this article, the authors focus on extended cycle combined hormonal contraceptive regimens and summarize their acceptability, efficacy, and safety. They also argue that extended cycle combined hormonal contraceptive may have increased efficacy compared with traditional cyclic combined hormonal contraceptive.
延长周期避孕是一种安全且可接受的避孕方式，可能比周期性方案更有效，尤其是对于口服避孕药使用者。大多数延长周期方案导致的计划性出血事件较少，这是许多女性所期望的结果。它们也可能导致更多的非计划性出血和/或点滴出血事件，且这些事件会随着时间减少。使用延长周期避孕的女性经历的月经症状较少，尤其是头痛。一些女性有医疗状况或月经症状，这使得延长周期避孕成为首选方法。尽管我们没有足够的数据推荐一种特定的延长周期方案优于另一种，但这些新方案的使用将为女性提供更多选择，而且几乎肯定会提高激素避孕的可接受性和有效性。在本文中，作者聚焦于延长周期联合激素避孕方案，并总结了它们的可接受性、有效性和安全性。他们还认为，与传统的周期性联合激素避孕相比，延长周期联合激素避孕可能具有更高的有效性。
