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Relationship of follicular fluid nitric oxide concentrations with the serum steroid (progesterone, estradiol,) levels, apoptosis of granulosa luteinized cells and with the outcomes after COH/ IVF
To investigate the relationship between serum progesterone concentration on the day of human chorionic gonadotrophin (HCG) administration and rescue intracytoplasmic sperm injection (ICSI), a total of 9858 patients who underwent IVF or rescue ICSI were retrospectively analysed. The results showed a significant difference in serum progesterone concentration on the day of HCG administration between the IVF group and rescue ICSI group (P < 0.01). Multivariate logistic regression showed that progesterone concentration was positively and significantly associated with rescue ICSI (OR 1.297, 95% CI 1.153–1.460, P < 0.001). Moreover, an increased rescue ICSI rate was associated with progressively higher progesterone concentrations in all cycles. In addition, patients with progesterone >1.5 ng/ml demonstrated a significantly higher rescue ICSI rate compared with patients with progesterone concentration ⩽1.5 ng/ml (P < 0.05). In conclusion, elevated progesterone on the day of HCG administration had an adverse effect on oocyte fertilization; thus, greater attention should be paid to these patients in an attempt to avoid fertilization failure, especially when progesterone is >1.50 ng/ml.
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