Self-Detection of the LH Surge in Urine After GnRH Agonist Trigger in IVF: How to Minimize Failure to Retrieve Oocytes

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  • Mauro Cozzolino, IVIRMA Madrid, Universidad Rey Juan Carlos
  • ,
  • Sonia Matey, IVIRMA Madrid
  • ,
  • Abigail Alvarez, IVIRMA Madrid
  • ,
  • Mónica Toribio, IVIRMA Madrid
  • ,
  • Verónica López, IVIRMA Madrid
  • ,
  • Marta Perona, IVIRMA Madrid
  • ,
  • Elizabet Henzenn, IVIRMA Madrid
  • ,
  • Manuel Piró, IVIRMA Madrid
  • ,
  • Peter Humaidan
  • Juan A. Garcia-Velasco, IVIRMA Madrid, Universidad Rey Juan Carlos

Research question: Urine LH testing may be useful to confirm an LH surge after the GnRH agonist (GnRHa) trigger prior to oocyte retrieval in IVF. Design: A prospective cohort study, including oocyte donors undergoing ovarian stimulation, treated with a GnRHa trigger for final oocyte maturation. Urine LH testing was performed at home, 12 h after the GnRHa trigger. In the case of a negative result, serum LH and progesterone measurements were done that same day. Donors with no serum LH peak after trigger were re-scheduled using a dual trigger, with GnRHa and hCG. Results: Three hundred and fifty nine oocyte donors were included in the analysis. Three hundred and fifty six donors had positive urine LH tests, followed by oocyte retrieval. In one case, the LH test was positive, however, no oocytes were retrieved (false positive 1/356). Three LH tests were negative in urine: in one of these three cases, LH was tested again in blood, confirming an LH rise, consistent with an optimal response to the GnRHa trigger; in the other two cases, serum LH was <15 mUI/mL, after which the oocyte retrieval was re-scheduled for 36 h after an being re-triggered, resulting in the retrieval of 19 and 22 MII oocytes, respectively. Considering the cost analysis, it would be a significantly cost-saving strategy, as blood testing would have costed 14,840€ vs. only 185.5€ in urine LH kits. Conclusions: Urinary testing of the LH surge after GnRHa trigger is easy, safe, reliable, and convenient. In addition, LH urine testing allows identifying donors and patients who could benefit from a rescue hCG trigger after an unsuccessful GnRHa trigger.

OriginalsprogEngelsk
Artikelnummer221
TidsskriftFrontiers in Endocrinology
Vol/bind11
Antal sider7
ISSN1664-2392
DOI
StatusUdgivet - apr. 2020

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