Background: In vitro fertilization (IVF) is a four-stage procedure, ovarian stimulation and monitoring, oocyte retrieval, embryo transfer. Transvaginal ultrasound–guided follicle aspiration the most common method for retrieval in assisted reproductive technologies, it increasingly performed as an outside procedure. Objective: To compare between general Anesthesia Conscious Sedation according to...

BACKGROUND A number of factors influence the success of oocyte cryopreservation and subsequent ICSI. The aim of the present study is to establish the ideal time, after oocyte retrieval, for human oocyte cryopreservation via slow freezing/rapid thawing protocol with 0.3 M sucrose concentration in cryoprotectant solution (SF/RT 0.3 M). METHODS Retrospective study with 75 patients on the clinica...

Background: Abnormal oocyte morphology has been associated with the hormonal environment to which the gametes are exposed. In this study, we evaluated the oocytes morphology, fertilization rate, embryos quality, and implantation rate resulted of retrieved oocytes in different times after human chorionic gonadotrophin (hCG) administration. Materials and Methods: A total of 985 metaphase II were ...

We report a very rare case of ovarian torsion following controlled ovarian stimulation for in vitro fertilization in which no oocytes were obtained at the time of ovum retrieval from the left torsed ovary. The patient was a 33-year-old nulligravida female undergoing controlled ovarian stimulation. On day 14, the patient complained of lower left abdominal pain with nausea. Transvaginal oocyte re...

Background: The biochemical characteristics of the follicular fluid (FF) play essential role in oocyte quality, the subsequent fertilization potential and embryo development. The oocyte quality and metabolism largely depends on follicular microenvironment. Present study aimed to investigate the relationship between oocyte quality and FF homocysteine (Hcy) level in women undergoing to IVF treatm...

BACKGROUND The aim of this study was to investigate whether a pre-incubation time between oocyte retrieval and insemination or injection had any effect on the success rate of IVF or intracytoplasmic sperm injection (ICSI). Based on previously published data, many laboratories retain a time interval of several hours between oocyte retrieval and insemination/injection. In our setting, inseminatio...

This study examined the effects of human menopausal gonadotrophin (HMG) or human chorionic gonadotrophin (HCG) priming on cumulus-oocyte complex (COC) morphology, oocyte maturation and embryo development in patients undergoing in-vitro maturation (IVM) cycles. The patients were primed with nothing (group 1), low-dose HMG (group 2) or 10,000 IU HCG (group 3) before oocyte retrieval. COC with dis...

BACKGROUND Oocyte retrieval failure following an ovarian hyperstimulation protocol is uncommon in assisted reproductive technology (ART) programs. We analyzed the predictive factors for oocyte retrieval failure following controlled ovarian hyperstimulation (COH) with gonadotropin-releasing hormone (GnRH) agonist and GnRH antagonist protocols in ART programs. METHODS This study was a retrospec...

We report a case of ureteral injury with delayed hematuria after transvaginal oocyte retrieval. A 28-year-old infertile patient with a history of previous laparoscopic resection of endometriotic nodes of both sacrouterine ligaments presented with abdominal pain one day after oocyte retrieval. Four days after oocyte retrieval, she presented with massive hematuria that reappeared 6 days after ooc...

Follicular re-aspiration yielded similar oocyte recovery compared to direct aspiration (RR: 0.7; 95% CI: −0.9, 2.4; p=0.38), but entailed a longer procedure time (180 seconds; p<0.001) among low responding patients. A randomized comparison trial was performed to evaluate whether follicular re-aspiration using a double-lumen retrieval needle improves oocyte recovery when compared to direct folli...