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The perinatal outcome of the second twin in the case of IUD of sFGR foetus depends on chorionicity.
| Perinatal outcome | DC | MC |
|---|---|---|
| Second twin IUD | 3% | 15% |
| Preterm labour before 32 weeks | 54% | 68% |
| Abnormalities in CNS imaging of survivor | 16% | 34% |
| Neurodevelopment retardation of survivor | 2% | 26% |
CNS, central nervous system; DC, dichorionic; IUD, intrauterine death; MC, monochorionic; sFGR, selective FGR.
