Parameters that predict success for natural cycle in vitro fertilization-embryo transfer.
OBJECTIVE
To analyze our natural cycle IVF-ET experience in order to identify parameters predictive for success.


METHODS
Retrospective study.


METHODS
Private-based reproductive center.


METHODS
All patients who presented for IVF-ET interested in unmedicated cycles.


METHODS
Routine monitoring for IVF-ET was performed. In addition, serum values for FSH, PRL, E2, and P were analyzed.


RESULTS
Day 3 FSH values were not useful, whereas elevated day 3 LH values adversely correlated with outcome. Age was the single most important predictor of success. With two cycles, 87.5% of pregnancies occurred.


CONCLUSIONS
With proper patient selection, natural cycle IVF-ET results can be substantially improved.
Seibel
M M
MM
Faulkner Centre For Reproductive Medicine, Boston, Massachusetts 02130, USA.
Kearnan
M
M
Kiessling
A
A
D000328:Adult; D000367:Age Factors; D006063:Chorionic Gonadotropin / Q000008:administration & dosage / Q000627:therapeutic use; D004624:Embryo Transfer; D004958:Estradiol / Q000097:blood; D005246:Feedback; D005260:Female; D005307:Fertilization in Vitro; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D011388:Prolactin / Q000097:blood; D012189:Retrospective Studies; D013997:Time Factors
D006063:Chorionic Gonadotropin; D011374:Progesterone; D004958:Estradiol; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone