The use of ART in industrialised countries has become a routine infertility treatment. In the last 10 years there have been many research articles comparing pregnancy complications and obstetric risk in twin and singleton IVF/ICSI pregnancies, with those of a natural conception (Lambers et al 2007, Ochsenkuhn et al 2003, Tallo et al 1995).
A recent study from Canada (Allen et al 2006) which reviewed articles from 1995 to 2005 on the effect of ART on perinatal outcomes and obstetric risk showed that there is a definite link to a higher risk of perinatal complications, due mainly to the higher incidence of multiple pregnancies. These include pregnancy-induced hypertension, preterm birth, low birthweight, abruptio placentae and placenta praevia. The outcomes of that study and others have lead to a push from the medical world for single embryo transfer in ART, especially at blastocyst stage (Jansen & Sullivan 2006, Pinborg et al 2004). However, the study stated: 'it remains unclear if these increased risks are attributable to the underlying infertility, characteristics of the infertile couple, or use of the assisted reproductive techniques' (Allen et al 2006).
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A Beginner's Guide to Healthy Pregnancy. If you suspect, or know, that you are pregnant, we ho pe you have already visited your doctor. Presuming that you have confirmed your suspicions and that this is your first child, or that you wish to take better care of yourself d uring pregnancy than you did during your other pregnancies; you have come to the right place.