Background Accurate prevalence figures are not available, but it has been estimated that 1-2% of women have recurrent pregnancy loss (RPL), defined as three or more consecutive losses of intrauterine pregnancy in the first trimester. Half of whom have no identifiable cause. Recent studies of early pregnancy loss, preeclampsia, pregnancy complications such a hydatidiform mole suggests that these...

OBJECTIVE To test the developmental competence of oocytes in a nonhCG-triggered in vitro maturation (IVM) system when oocyte-cumulus complexes (OCC) are retrieved from antral follicles with a diameter of <6 mm. DESIGN Prospective cohort study. SETTING Tertiary university-based referral center. PATIENT(S) From January 2010 to September 2011, 121 patients with polycystic ovaries/polycystic ...

BACKGROUND Single embryo transfer (particularly of a top quality embryo) is an excellent model to correlate embryo quality in terms of morphological criteria to early pregnancy. We investigated whether this model could provide us with more information on what happens after implantation in the first trimester of pregnancy. METHODS The outcome of 370 consecutive single top quality embryo transf...

BACKGROUND The aim of this study was to investigate the effect of natural cycle (NC) endometrial preparation for frozen-thawed embryo transfer (FET) in women with advanced endometriosis. MATERIAL AND METHODS This retrospective study included 179 patients with stage III-IV endometriosis who underwent 233 FET cycles at a tertiary care academic reproductive medical center between March 2011 and Au...

Purpose: To analyze whether the thyroid status is affecting in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) outcomes. Methods: In this retrospective cohort study, we reviewed the medical records of 426 infertile women who underwent IVF/ICSI cycles. Included were hypothyroid (HypoT-LT4) patients with serum thyroidstimulating hormone (TSH) concentrations > 4.0 μIU/mL, which wer...

Background Recurrent pregnancy loss (RPL) is usually defined as three or more consecutive pregnancy losses before 20th gestational week. Many etiological factors have been considered as cause of RPL including genetic factors, uterine anatomical defects, endocrine abnormalities, thrombotic and immunologic factors. Nevertheless, the cause of RPL remains unknown in around half of the patients desp...

When treating infertile couples by assisted reproductive technologies (ART), all aspects of their care in individual clinics should be evaluated frequently. Results should then be compared with other clinics offering similar treatment. Evaluation of possible adverse longterm outcomes can be achieved by pooling results from individual clinics in national, regional and international registers and...

objectives: freezing and in vitro culture of testicular spermatozoa or tissue are reliable approaches for the management of azoospermic patients and could all for the possibility of multiple ivf-icsi procedures. however, the effect of cryopreservation duration on pregnancy outcome had been not fully examined. to analyze pregnancy outcome in patients underwent icsi procedure in relation to durat...

BACKGROUND Improved pregnancy, implantation, and birth rates have been reported after the use of reduced O2 concentration during embryo culture, mainly due to a reduction of the cumulative detrimental effects of reactive oxygen species. However, some studies have failed to report any positive effects. The objective of this meta-analysis was to evaluate the effect of a low-O2 environment on IVF/...

With recent results showing letrozole and anastrozole to be superior to tamoxifen as initial therapy for advanced disease, the aromatase inhibitors are poised to establish their place in the adjuvant therapy of postmenopausal receptorpositive breast cancer. A review of the rationale, design, and prel iminary results of the ongoing adjuvant trials that include aromatase inhibitors will be presen...