Twin-to-twin transfusion syndrome -survival of the receptor foetus


  • Joana Dias Neonatology Unit, Centro Hospitalar do Porto
  • José Fraga Neonatology Unit, Centro Hospitalar do Porto
  • Susana Branco Neonatology Unit, Centro Hospitalar do Porto
  • Tânia Monteiro Neonatology Unit, Centro Hospitalar do Porto
  • Carmen Carvalho Neonatology Unit, Centro Hospitalar do Porto
  • Ana Margarida Alexandrino Neonatology Unit, Centro Hospitalar do Porto



Polycythemia, recipient twin, twin-to-twin transfusion Syndrome


Introduction: Twin-twin transfusion syndrome (TTTS) is associated with the death of one or both foetuses, particularly if diagnosed before 28 weeks’ gestation. Sudden deteriorations can occur, leading to death of the cotwin and neurological handicap in the survivor.

Case Report: We report a case of polycythemia in the recipient twin of a pregnancy with TTTS. Laser photocoagulation of placental anastomoses was performed successfully at 18 weeks. Follow-up showed resolution of signs of TTTS on ultrasound examination. Caesarean section at 33 weeks due to foetal death of donor twin, the recipient twin demonstrated symptomatic polycythemia (hematocrit 70%). Partial exchange transfusion(PET) was performed twice in the first 12 hours. Normal hematocrit levels were achieved without complication. Perinatal outcome was good.

Conclusion: Despite the prognosis improvement after laser photocoagulation of placental anastomoses, perinatal mortality and morbidity remains height.


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How to Cite

Dias J, Fraga J, Branco S, Monteiro T, Carvalho C, Alexandrino AM. Twin-to-twin transfusion syndrome -survival of the receptor foetus. REVNEC [Internet]. 2016Feb.23 [cited 2024Jul.22];23(1):35-8. Available from:



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