Abstract
Purpose
Although many reports support stimulated in vitro fertilization, several patients do not respond to it well. Furthermore, stimulated treatment could be associated with reduced ovarian response. We describe three successful cases involving patients of advanced age from whom dominant follicles were retrieved during the natural cycle.
Materials and methods
All patients had failed to bear children through stimulated in vitro fertilization. In case 1, a follicle was retrieved after a gonadotropin-releasing hormone agonist was used to induce luteinizing hormone surge. In cases 2 and 3, pregnancy was achieved via completely natural cycles.
Results
One embryo was transferred every 16 cycles. Ongoing pregnancy—defined as pregnancy progressing beyond gestation week 9—was established in three cycles. The patients successfully delivered and had uneventful neonatal courses.
Conclusion
Mature oocyte retrieval followed by natural rather than stimulated in vitro fertilization might be a potential treatment for patients of advanced age when stimulated in vitro fertilization has been repeatedly unsuccessful.
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The authors wish to thank the staff of Kato Ladies Clinic.
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Capsule We describe three successful pregnancies and deliveries achieved via natural IVF cycles: the patients were older than 37 years with repeated failures by stimulated IVF.
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Matsuura, T., Takehara, Y., Kaijima, H. et al. Natural IVF cycles may be desirable for women with repeated failures by stimulated IVF cycles. J Assist Reprod Genet 25, 163–167 (2008). https://doi.org/10.1007/s10815-008-9204-7
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DOI: https://doi.org/10.1007/s10815-008-9204-7