Neonatology pp 67-76 | Cite as

Multiple Pregnancies

  • Maria Angela Rustico
  • Mariano Lanna
  • Enrico Ferrazzi


The cultural modifications in women’s reproductive strategies over the past 50 years have drastically influenced the demographic scenario. Higher levels of education and a desire for economic and social success, as well as difficulties in finding a permanent job, have played a major role in modifying the reproductive strategies, as evidenced by delayed parenthood and the reduction in family size [1]. In addition to this expected twinning rate due to advancing maternal age, there is also evidence that natural twinning has increased in women who have been exposed to assisted reproduction technologies [2].


Assisted Reproductive Technology Twin Pregnancy Assisted Reproduction Technology Estimate Fetal Weight Twin Reverse Arterial Perfusion 
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Copyright information

© Springer-Verlag Italia 2012

Authors and Affiliations

  • Maria Angela Rustico
    • 1
  • Mariano Lanna
  • Enrico Ferrazzi
  1. 1.Obstetrics and Gynaecology Clinical Unit, Buzzi Children’s Hospital Department of Clinical SciencesUniversity of MilanMilanItaly

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