Abstract:
Objective: To describe a parasitic infection that probably affected the implantation of good-quality embryos in an in vitro fertilization (IVF) cycle. Design: Case report. Setting: Tertiary care center in a university hospital. Patient(s): A 36-year-old Caucasian female with primary unexplained infertility. The patient underwent two cycles of IVF with good-quality embryos transferred; however, no pregnancy ensued despite adequate luteal support. Intervention(s): In vitro fertilization cycles, CBC, blood smear, evaluation for eosinophilia including serological evaluation for parasitic infections. Main Outcome Measure(s): Pregnancy. Result(s): Following treatment for filariasis, a repeat IVF cycle using the same stimulation protocol yielded a full-term pregnancy. Conclusion(s): This case is of particular importance because, to our knowledge, it is the first to describe a parasitic infection that probably affected the implantation of good-quality embryos in IVF cycles. © 2006 American Society for Reproductive Medicine.