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.
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.