Editorials

Spontaneous miscarriage in the first trimester

BMJ 2006; 332 doi: https://doi.org/10.1136/bmj.332.7552.1223 (Published 25 May 2006) Cite this as: BMJ 2006;332:1223
  1. Andrew Weeks (aweeks@liv.ac.uk), senior lecturer in obstetrics,
  2. Kristina Gemzell Danielsson, professor of obstetrics and gynaecology
  1. School of Reproductive and Developmental Medicine, Liverpool Women's Hospital, Crown Street, Liverpool L8 7SS
  2. Department of Woman and Child Health, Division for Obstetrics and Gynaecology, Karolinska Institutet, S-171 76 Stockholm, Sweden

    Let each patient choose among expectant, surgical, or medical management

    Miscarriage in the first trimester affects about 15% of all pregnancies. It can be classified into early fetal loss (previously called missed abortion or blighted ovum) and retained products of conception (previously called incomplete abortion). Traditionally, both types of first trimester miscarriage are treated by surgical uterine evacuation. Increasingly, however, women are offered medical management (using misoprostol) or expectant management (avoiding treatment and letting the miscarriage take its natural course).

    There have been numerous studies of miscarriage management, but they have generally been underpowered to assess anything other than the need for unplanned uterine curettage.12 The miscarriage treatment (MIST) study, a large, multicentre, randomised trial reported by Trinder and colleagues on p 1235, is therefore welcome.3

    In the MIST study 1200 women with early fetal loss or retained products of conception were randomly allocated to receive expectant, surgical, or medical management. The primary outcome was infection, and there was no significant difference between the three groups when judged according to strict criteria. Women in the surgical group were, however, given significantly more prescriptions of antibiotics for …

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