TTTS — MCCQE Part 1 MCQ

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ModeratePregnancy ComplicationsTTTSMCCQE Part 1

A 35-year-old G1P0 at 12 weeks has a twin pregnancy. US: single placenta, thin dividing membrane. Most important potential complication?

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Correct answer: A — Twin-to-twin transfusion syndrome

MCDA twins: TTTS risk (10-15%) due to placental vascular anastomoses. SOGC: serial US q2weeks from 16 weeks. Laser photocoagulation for severe TTTS.

Reference: SOGC Multiple Pregnancy