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Getting knotted: umbilical knots in a monochorionic monoamniotic twin pregnancy
  1. A A A Omari,
  2. D Cameron
  1. Paediatric Department, Glan Clwyd Hospital, Sarn Lane, Clwyd LL18 5UJ;

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True umbilical knots occur in about 1% of all pregnancies and are more common with long cords, grandmultiparity, male fetuses, polyhydramnios and monoamniotic twins.1 Figure 1 shows complex umbilical knotting in a monochorionic monoamniotic twin …

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  • Competing interests: none declared