Abstract
The most important complications of assisted reproductive techniques are the risk
of ovarian hyperstimulation syndrome (OHSS) and the high incidence of multiple pregnancies.
Two new strategies are effective in preventing OHSS: the use of anti-müllerian hormone
as a marker and the use of dopamine agonists. Genetic markers and vascular endothelial
growth factor levels do not predict OHSS. In vitro oocyte maturation treatment should
be considered in high responders and in women at risk of OHSS. For prevention of multiple
pregnancies, the most effective method is transfer of a single embryo. Preimplantation
genetic screening with comparative genomic hybridization, genetic expression of cumulus
cells, time-lapse imaging, and respiration rate are emerging technologies for embryo
selection that require further study.
Keywords
ART - IVF - OHSS - risk - complication - prevention - risk factor - multiple pregnancies