Missed Miscarriage
A 35-year-old woman at 8 weeks by dates has light brown vaginal spotting and mild cramps. She is afebrile, blood pressure 118/70 mm Hg, abdomen non-tender, and the cervical os is closed. Transvaginal ultrasound shows an intrauterine gestational sac measuring 5 weeks with a fetal pole and no cardiac activity. Which of the following is the most appropriate next step?
- A.Immediate suction curettage
- B.Expectant management with follow-upCorrect
- C.Vaginal prostaglandin E2 induction
- D.Abortifacient with prophylactic antibiotics
Explanation
A closed cervix with an intrauterine gestational sac containing a fetal pole and no cardiac activity, in a woman who is stable and afebrile with only light spotting, is a missed miscarriage. Three management options exist and all are acceptable, but for a haemodynamically stable woman with no infection and minimal bleeding, expectant management is the reasonable first step, with complete expulsion occurring in a large majority within 1 to 2 weeks and follow-up ultrasound or a pregnancy test to confirm. Medical management with mifepristone followed by misoprostol shortens the interval and is offered when the woman prefers not to wait or when expectant management fails, while surgical management by manual vacuum aspiration or suction curettage is indicated for haemodynamic instability, heavy bleeding, suspected infection, or simply by patient choice. Note that when the ultrasound findings are borderline, formal criteria are needed to diagnose pregnancy failure, namely a crown-rump length of 7 mm or more with no heartbeat or a mean sac diameter of 25 mm or more with no embryo, otherwise the scan is repeated after 7 to 14 days. Anti-D immunoglobulin is given to rhesus negative women having surgical management, and all women need counselling and a discussion about future pregnancy. Prostaglandin E2 and antibiotic-covered abortifacient regimens are not standard here.
Why each option
- A.
- Surgical evacuation is reserved for heavy bleeding, instability, infection or patient preference. It is not the default first step in a stable woman.
- B.
- Correct. A stable, afebrile woman with light spotting and a confirmed missed miscarriage can be managed expectantly with planned follow-up.
- C.
- Prostaglandin E2 is not the standard agent; misoprostol, a prostaglandin E1 analogue, with or without mifepristone, is used for medical management.
- D.
- Antibiotic-covered evacuation regimens are for septic miscarriage. There is no fever, tenderness or offensive discharge to suggest infection here.
Reference: NICE Guideline NG126, Ectopic Pregnancy and Miscarriage, updated 2023
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