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Institut Curie, 26 rue d'Ulm, Paris cedex 05, France.
Gynecol Obstet Fertil. 2013 Jun;41(6):381-7. doi: 10.1016/j.gyobfe.2013.05.003. Epub 2013 Jun 12.
The extended use of combined hormonal contraception contributes to a reduction of the frequency of menses by shortening the hormone free interval or the number of withdrawal weeks by year. Numerous regimen have been studied, with cycles from 49 to 365days. Most extended/continuous cycle regimens result in fewer scheduled bleeding episodes but in more unscheduled bleedings or spottings, that decrease with time. An extended contraception may be effective in reducing some menstrual symptoms such as menorrhagia or dysmenorrhea, or some menstrual related symptoms such as migraine headaches. This article reviews existing data about extended combined hormonal contraception, women's and providers' attitude, bleeding pattern, efficacy and tolerance.
延长联合激素避孕的使用通过缩短无激素间隔时间或每年的撤药性出血周数，有助于减少月经频率。人们已经研究了许多方案，周期从49天到365天不等。大多数延长/连续周期方案导致计划性出血事件减少，但非计划性出血或点滴出血增多，且随着时间推移会减少。延长避孕可能有效减轻一些月经症状，如月经过多或痛经，或一些与月经相关的症状，如偏头痛。本文综述了关于延长联合激素避孕的现有数据、女性和提供者的态度、出血模式、疗效和耐受性。
