Objectives: To analyze our natural cycle IVF-ET experience in order to identify parameters predictive for success.
Design: Retrospective study.
Setting: Private-based reproductive center.
Patients: All patients who presented for IVF-ET interested in unmedicated cycles.
Main outcome measures: 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.
Conclusion: With proper patient selection, natural cycle IVF-ET results can be substantially improved.