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Updated: Mar 14, 2026
Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
Published on: September 16, 2021
Aspiration of immature oocytes during cesarean section for fertility preservation
Avi Ben-Haroush1, Ronit Abir1, Onit Sapir1
1a Infertility and IVF Unit, Helen Schneider Hospital for Women, Rabin Medical Center -- Beilinson Campus, Petach Tikva, Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel.
Background:
In vitro maturation (IVM) of immature oocytes is an important technology for selected clinical indications. We previously described a pregnant woman with a history of renal transplantation who underwent oocyte aspiration during cesarean section (CS) for fertility preservation and future surrogacy.
Case:
A 27-year-old pregnant woman was diagnosed with neck rhabdomyosarcoma at 37 weeks' gestation. CS was performed with direct aspiration of small follicles from one ovary and oophorectomy of the other. Twenty-one identified oocyte-cumulus complexes were cultured, and 12 mature oocytes and 14 ovarian cortex strips were cryopreserved.
Conclusion:
Aspirating competent oocytes during CS may serve as an additional means of fertility preservation in pregnant women. The procedure may also be offered to patients with an IVF pregnancy who are scheduled for elective CS.
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