摘要：Aim of the study: To examine saliva- and serum concentrations correlation of estradiol (E2) in women undergoing
ovarian hyperstimulation for IVF/ICSI. Saliva measurements could simplify stimulation follow up. A ‘home’ test
for E2 could be useful.
Methods: Prospective interventional academic monocentric study at the Centre for Reproductive Medicine of
the University Hospital of Ghent, Belgium. Between November 2014 and August 2015 thirty-one patients were
included after random selection (inclusion criteria: < 41 years of age, any rank of IVF/ICSI cycle, serum antiMüllerian
hormone concentration ≥ 1 µg/L, treatment completely at the University Hospital.) Measurements took
place using immunoassay serum measurements. Estradiol was determined in saliva and serum by LC-MS/MS. At
every control, E2 was measured in saliva and serum. Equilibrium analysis on a part of the serum samples took
place. Statistic method used is a linear Mixed- Effects model (MIXED) in SPSS.
Results: Statistical analysis shows a strong linear relation between serum and salivary E2, (R2 of 0.75). E2 in
equilibrium dialysis and E2 in serum were also strong correlated (R2
of 0.85).
Conclusions: Strong correlation between serum and salivary E2 concentrations was found. Equilibrium dialysis
showed good correlation with salivary E2. Saliva can be a good surrogate for free E2 in women undergoing ovarian
hyperstimulation. This may create an opportunity to develop a point of care test for measuring E2, in purpose
to simplify screening for OHSS risk.
