Published in:
01-02-2012 | ASSISTED REPRODUCTION TECHNOLOGIES
Severe ovarian hyperstimulation syndrome after letrozole-gonadotropin stimulation: a case report
Authors:
Jayeon Kim, Anne Z. Steiner, Marc Fritz, Jennifer E. Mersereau
Published in:
Journal of Assisted Reproduction and Genetics
|
Issue 2/2012
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Excerpt
Ovarian hyperstimulation syndrome (OHSS) results from an exaggerated response to ovulation induction, characterized by a fluid shift from the intravascular space to third space compartments. The incidence of moderate OHSS is approximately 3–6% and severe OHSS occurs in 0.1–3% of treatment cycles [
1,
2]. A number of causal mechanisms have been investigated, involving estradiol (E
2), human chorionic gonadotropin (hCG), and vascular endothelial growth factor (VEGF). A strong association between E
2 concentrations and risk for developing OHSS has been observed consistently [
3]. …