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OBG · Postpartum haemorrhage and emergencies: planned surgery for placenta accreta
Sample itemAntenatal MRI in a woman with a previous caesarean section and an anterior placenta praevia shows deep myometrial invasion. Which plan is best?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Planned caesarean by a multidisciplinary team, with the placenta left undisturbed
In a suspected invasive placenta, removal of the placenta can cause torrential bleeding. A scheduled operation in a unit with blood products, anaesthetic and surgical expertise, with the incision placed to avoid the placenta, is safest. The placenta is left in place and hysterectomy is done, or the uterus is conserved selectively.
Option by option
A. Expectant management until spontaneous labour at term
Spontaneous labour risks emergency surgery with major bleeding and an unprepared team.
B. Elective caesarean with prompt manual removal of the placenta
Manual removal of an invasive placenta provokes massive haemorrhage.
C. Induction of labour, then manual removal under anaesthesia
Labour with manual removal is unsafe when the placenta is praevia and invasive.
D. Planned caesarean by a multidisciplinary team, with the placenta left undisturbed (correct)
Correct. Planned multidisciplinary surgery without attempting placental removal limits haemorrhage.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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