Purpose Frozen embryo transfer (FET) has no clear negative impact on neonatal outcome compared with fresh embryo transfer (ET) and appears to result in similar or even better neonatal outcome. The objective of this study was to compare early pregnancy outcome and neonatal health of children born after FET and fresh ET. Methods In this study early pregnancy and neonatal outcomes after FET (n=200) and fresh ET (n=500) were compared. Results For early pregnancy, biochemical pregnancy was comparable between FET and fresh ET groups. Spontaneous abortion was significantly higher in FET (14.5%) than fresh ET group (9%). Neonatal outcome was comparable between both groups except for lower live birth rate in FET (55%) versus fresh ET group (66%). Conclusion FET has similar neonatal outcome in terms of prematurity, low birth weight, stillbirth, neonatal death and major malformation compared with fresh ET.

We recommend mild protocol in assisted reproductive technology cycles for poor responders based on our results regarding less doses of used gonadotropin and a shorter duration of stimulation.

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Ultrasound has become essential in the diagnosis and management of the infertile female. Transvaginal ultrasonography provides a detailed examination of the uterus and ovaries. Evaluation of the infertile female has become increasingly more detailed in recent years because of technologic advancements as vaginal ultrasonography is the first step in assessment of pelvic infertile female.

Background Recently, some studies evaluated the live births rates (LBRs) in two poor ovarian responders (POR) classification methods separately, but present study was designed to compare the LBRs among different groups of patients on the basis of Bologna criteria or POSIEDON group classifications and find the important predictive factors for LBR in patients with POR.Methods In this cross-sectional study, the database containing clinical and laboratory information on infertility treatment cycles were evaluated from December 2015 to December 2017 and all the patients with at least one POR after standard controlled ovarian stimulation (COH) during IVF/ICSI cycles were evaluated. The eligible patients were enrolled and divided into five and four groups according to the Bologna criteria and POSEIDON groups’ classifications, respectively.Results 812 patients with POR diagnosis were investigated which in overall 517 of them had embryo transfer in the last treatment cycle (63.6%) and total clinical pregnancy rate 19.3% (100 cases) and live birth rates 16.1% (86 cases) were found. When the patients were grouped on the Basis of the POSEIDON classification, the highest LBR was observed in the POSEIDON group III. On the other hand, according to the Bologna criteria, 41 patients were not included in any group, and in the analysis of cycle outcome, the LBR in the Bologna group II was more than other groups. The multivariable regression analysis revealed that the significant independent variables remained in the model as important predictive factor for live births in the study population were the number and quality of the transferred embryos transmission (good and excellent quality), and the POSSIDON classification group (POSSIDON group III).ConclusionsOn the basis of present results, the POSEIDON group classification could be more comprehensive and practical than Bologna criteria for diagnosing and categorizing POR patients. In addition, it was found the number and quality of transferred embryos were the most important prognostic factor for live birth in POR patients; therefore we suggest to consider COH protocols with a freezing embryos strategy, and the collection of more good quality embryos to improve the probability of a live birth.