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Society of Family Planning Clinical Recommendation: Medication abortion between 14 0/7 and 27 6/7 weeks of gestation : Jointly developed with the Society for Maternal-Fetal Medicine - 10/10/23

Doi : 10.1016/j.ajog.2023.09.097 
Blake Zwerling a, , Alison Edelman b, Anwar Jackson c, Anne Burke a, Malavika Prabhu, with the assistance of d
a Department of Gynecology & Obstetrics, Division of Family Planning, Johns Hopkins Bayview Medical Center, Baltimore, MD, United States 
b Department of Obstetrics & Gynecology, Division of Complex Family Planning, Oregon Health & Science University, Portland, OR, United States 
c Department of Obstetrics & Gynecology, Aurora Health Care, Milwaukee, WI, United States 
d Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Massachusetts General Hospital, Obstetrics and Gynecology, Yawkey Center for Outpatient Care, Boston, MA, United States 

Corresponding author.
Sous presse. Épreuves corrigées par l'auteur. Disponible en ligne depuis le Tuesday 10 October 2023

Résumé

The objective of this Clinical Recommendation is to review relevant literature and provide evidence-based recommendations for medication abortion between 14 0/7 and 27 6/7 weeks of gestation, with a focus on mifepristone-misoprostol and misoprostol-only regimens. We systematically reviewed PubMed articles published between 2008 and 2022 and reviewed reference lists of included articles to identify additional publications. See Search Strategy for more details. Several randomized trials of medication abortion between 14 0/7 and 27 6/7 weeks of gestation demonstrate that mifepristone 200 mg orally before misoprostol increases effectiveness (complete abortion at 24 or 48 hours) compared to misoprostol only. Studies continue to evaluate different doses, routes, and dosing intervals for misoprostol. If mifepristone is unavailable, several misoprostol regimens with individual doses of at least 200 mcg or more are effective. Adjunctive osmotic dilators are of limited benefit. It is important to individualize care, with consideration to reducing misoprostol dose in low-resource settings or at 24 0/7 weeks of gestation or later (or equivalent uterine size). Misoprostol in the setting of two or more previous cesarean sections is associated with increased risk of uterine rupture compared to one or none, but risk remains low. Most contraceptives can be started during or immediately following abortion. Appropriately trained and credentialed advanced practice clinicians can provide medication abortion between 14 0/7 and 27 6/7 weeks of gestation with appropriate backup within the confines of local regulations and licensure.

Le texte complet de cet article est disponible en PDF.

Keywords : Abortion, Induction termination, Medication abortion, Mifepristone, Misoprostol, Second trimester


Plan


 This paper is being jointly published by Contraception and American Journal of Obstetrics & Gynecology by Elsevier Inc. The articles are identical except for minor stylistic and spelling differences in keeping with each journal’s style. Either citation can be used when citing this article.
 This document uses the term medication abortion to refer to any abortion with medications (including mifepristone and misoprostol, misoprostol only, or other abortifacientor medication) used with the intention of ending and expelling a pregnancy regardless of the setting, context, or pregnancy duration. Historically, a variety of terms have been used to refer to medication abortion: medical abortion, RU486, abortion pill(s), abortion with pills, pharmaceutical abortion, medicinal abortion, no test abortion, no touch abortion, history-based screening, self-managed abortion, advance provision, medically induced, medical/medication induction, and induction termination.
 Conflicts of interest: The authors declare no conflict of interest. The Society of Family Planning receives no direct support from pharmaceutical companies or other industries for the production of clinical recommendations.
 Funding: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.


© 2023  Publié par Elsevier Masson SAS.
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