IMR Press / CEOG / Volume 45 / Issue 4 / DOI: 10.12891/ceog4154.2018

Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 46 Issue 1 (2019). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.

Open Access Case Report
A case report of clinical pregnancy in which oocyte retrieval was carried out in the early follicular phase of the menstrual cycle
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1 Department of Center for Reproductive Medicine, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin, China
2 School of Medicine, Nankai University, Tianjin, China
Clin. Exp. Obstet. Gynecol. 2018, 45(4), 629–631; https://doi.org/10.12891/ceog4154.2018
Published: 10 August 2018
Abstract

To report a clinical pregnancy after frozen embryo transfer (FET) for which oocyte was picked up in the early follicular phase of the menstrual cycle. A 40-year-old woman with a two-year history of primary infertility was recruited. After in vitro fertilization (IVF), the embryo underwent vitrification cryopreservation process and FET was carried out five months later. The patient successfully conceived after FET. Follicle recruitment and selection cannot only be performed during a female patient's interovulatory interval (IOI), but oocytes can also be picked up in the early follicular phase of the menstrual cycle conception through IVF, embryo vitrification cryopreservation, and FET. Oocyte retrieval in the early follicular phase of the menstrual cycle increases the chances of an infertile female to conceive, especially in cancer patients and in women with poor ovarian response (POR).
Keywords
Early follicular phase
In vitro fertilization
Poor ovarian response
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