Maternal serum human chorionic gonadotrophin and pregnancy-associated plasma protein A in twin pregnancies in the first trimester.

@article{Niemimaa2002MaternalSH,
  title={Maternal serum human chorionic gonadotrophin and pregnancy-associated plasma protein A in twin pregnancies in the first trimester.},
  author={Marko Niemimaa and Mikko U. Suonp{\"a}{\"a} and Seppo Heinonen and Maija Sepp{\"a}l{\"a} and Risto Seppo Bloigu and Markku Ryyn{\"a}nen},
  journal={Prenatal diagnosis},
  year={2002},
  volume={22 3},
  pages={183-5}
}
OBJECTIVES To determine the levels of free beta-human chorionic gonadotrophin (beta-hCG) and pregnancy-associated plasma protein A (PAPP-A) in twin pregnancies in the first trimester. METHODS Serum samples were obtained from 67 pregnant women with twin pregnancies and maternal serum free beta-hCG and PAPP-A concentrations were compared with those of 4279 singleton controls between the 8th and 13th weeks of gestation. RESULTS The geometric means of chromosomally normal twin pregnancies were… CONTINUE READING