Christophe Sifer
No ORCID on file
· 10 papers in corpus
observational
2025
BACKGROUND: The PPOS (Progestin Primed Ovarian Stimulation) protocol has been evaluated and has proved its effectiveness in preventing the LH (luteinizing hormone) surge. This protocol is often used for cryopreservation for social reasons b…
observational
2022
BACKGROUND: In absence of contraindication, breast cancer patients of reproductive age can undergo fertility preservation with controlled ovarian stimulation for oocyte/embryo cryopreservation before the administration of potentially gonado…
observational
2018
observational
2016
INTRODUCTION: The aim of our study was to compare the stage and severity of endometriosis in fertile and infertile women with congenital uterine malformations. MATERIAL AND METHODS: We performed an observational study from September 2007 t…
observational
2015
OBJECTIVE: To show an external validation of the Endometriosis Fertility Index (EFI) and to observe cumulated pregnancy rates after infertility management combining surgery and assisted reproductive technologies (ART). DESIGN: Observationa…
observational
2015
OBJECTIVE: To determine prognostic factors for a second live birth, after a first child obtained through assisted reproductive techniques (ART). DESIGN: Observational study from January 2004 to December 2014. SETTING: Tertiary care univer…
observational
2013
Lifestyle factors, such as weight and nutritional status may affect male fertility, including sperm fertilization ability. The objective of this retrospective study was to evaluate the association between body mass index (BMI) and sperm-zon…
case-report
2010
OBJECTIVES: The endometrial osseous metaplasia is a rare disease which is characterized by the presence of osseous tissue in endometrium. It is often diagnosed in women with secondary infertility. The main objective of this work is to evalu…
rct
2009
PURPOSE: To compare the effects of 2 different media on embryo morphology and development at days 2/3. METHOD: Six hundred seventy-six attempts from 512 couples were included in this prospective auto-controlled study. Sibling oocytes of al…
other
2002
OBJECTIVE: The aim of this study was to investigate the relationship between induced apoptosis of human luteinized granulosa cells (GCs) and in vitro fertilization (IVF) outcome. STUDY DESIGN: We induced apoptosis with interferon gamma and…