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Fertil Steril. 2011 Feb;95(2):826-8. doi: 10.1016/j.fertnstert.2010.09.009. Epub 2010 Oct 20.

Efficacy of induced luteinizing hormone surge after "trigger" with gonadotropin-releasing hormone agonist.

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Fertility Center of Las Vegas, Las Vegas, Nevada 78229, USA.


The magnitude of the LH surge after GnRH agonist "trigger" was correlated with oocyte yield and maturity and was suboptimal in approximately half of the cycles. A modest reduction in oocyte yield and maturity was observed when the serum level of LH 12 hours after GnRH agonist trigger was less than the median value (52 IU/L), and a dramatic reduction in yield and maturity was observed when that level was less than 12 IU/L.

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