使用GnRHa破卵若LH <15代表反應不佳，應施打hCG1000iu提高取卵數量

Fertil Steril. 2016 Aug 1. pii: S0015-0282(16)62481-0. doi: 10.1016/j.fertnstert.2016.07.1068. [Epub ahead of print]

Dual trigger for final oocyte maturation improves the oocyte retrieval rate of suboptimal responders to gonadotropin-releasing hormone agonist.

Lu X1, Hong Q1, Sun L1, Chen Q1, Fu Y1, Ai A1, Lyu Q1, Kuang Y2.

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Abstract

OBJECTIVE:

To identify the risk factors for suboptimal response to GnRH agonist (GnRH-a) trigger and evaluate the effect of hCG on the outcome of patients with suboptimal response to GnRH-a.

DESIGN:

A retrospective data analysis.

SETTING:

A tertiary-care academic medical center.

PATIENT(S):

A total of 8,092 women undergoing 8,970 IVF/intracytoplasmic sperm injection (ICSI) treatment cycles.

INTERVENTION(S):

All women underwent hMG + medroxyprogesterone acetate (MPA)/P treatment cycles during IVF/ICSI, which were triggered using a GnRH-a alone or in combination with hCG (1,000, 2,000, or 5,000 IU). Viable embryos were cryopreserved for later transfer.

MAIN OUTCOME MEASURE(S):

The rates of oocyte retrieval, mature oocytes, fertilization, and the number of oocytes retrieved, mature oocytes, and embryos frozen.

RESULT(S):

In total, 2.71% (243/8,970) of patients exhibited a suboptimal response to GnRH-a. The suboptimal responders (LH ≤15 mIU/mL) had a significantly lower oocyte retrieval rate (48.16% vs. 68.26%), fewer mature oocytes (4.10 vs. 8.29), and fewer frozen embryos (2.32 vs. 3.54) than the appropriate responders. Basal LH levels served as the single most valuable marker for differentiating suboptimal responders with the areas under the receiver operating curve of 0.805. Administering dual trigger (GnRH-a and hCG 1,000, 2,000, 5,000 IU) significantly increased oocyte retrieval rates (60.04% vs. 48.16%; 68.13% vs. 48.16%; and 65.76% vs. 48.16%, respectively) in patients with a suboptimal response.

CONCLUSION(S):

Basal LH level was useful predictor of the suboptimal response to GnRH-a trigger. Administrating dual trigger including 1,000 IU hCG for final oocyte maturation could improve the oocytes retrieval rate of GnRH-a suboptimal responder.