Related Experiment Video
Updated: May 28, 2026

The Immediate Partial Removal of Cumulus-Oocyte Complexes: A Refined Approach for Rapid Observation of In Vitro Fertilization
Published on: October 18, 2024
[The impact of exogenous luteinizing hormone on IVF/ICSI cycles parameters]
S Toporcerová1, P Urdzík, M Popelková
1II. gynekologicko-pôrodnícka klinika Lekárskej fakulty Univerzity P. J. Safárika a Univerzitnej nemocnice L. Pasteura, Kosice.
Objective:
To evaluate the effect of exogenous luteinizing hormone on IVF/ICSI success.
Design:
Retrospective clinical study.
Setting:
2nd Department of Gynaecology and Obstetrics, Medical Faculty and L. Pasteur University Hospital Kosice, Slovak Republic.
Methods:
Individual parameters and clinical pregnancy rate of 232 IVF/ICSI cycles were compared in dependence on stimulation protocol (pure rFSH vs. rFSH and 75 IU rLH from S7).
Results:
There was no statistically significant difference in IVF/ICSI success between individual groups and subgroups, but we demonstrated the increase in clinical pregnancy rate per ET in agonist cycles group with exogenous LH activity totally above 11% (27.6% vs. 38.6%), in patients under 35 years above 12% (30.4% vs. 42.6%) and in patients over 35 years above 14% (16.7% vs. 30.8%). In antagonist cycles group there was demonstrated the increase in clinical pregnancy rate only in women over 35 years - above 14% (13.3% vs. 30.8%).
Conclusions:
Despite of negative statistical analyses, from the clinical point of view we can strongly recommend the LH addition during COH, especially in agonist cycles and in older women.
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