Do live birth rate and obstetric outcomes vary between immediate and delayed embryo transfers following freeze-all cycles?

Yildiz, Sule
Turkgeldi, Engin
Kalafat, Erkan
Keles, Ipek
Gokyer, Dilan
Ata, Baris
Research question: Do live birth rates (LBR), obstetric and perinatal outcomes vary between women who underwent frozen embryo transfer (ET) in the immediately subsequent menstrual cycle, and with those who underwent delayed frozen ET.


GER, M; KARAMETE, BK; BEKSAC, MS; AKSEL, S (Elsevier BV, 1993-03-01)
Objective: To develop a probabilistic computer model to predict the preovulatory days of the menstrual cycle by given hormonal parameters such as follicle-stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), and progesterone (P).
A new definition of recurrent implantation failure on the basis of anticipated blastocyst aneuploidy rates across female age.
Ata, Baris; Kalafat, Erkan; Somigliana, Edgardo (2021-11-01)
Objective: To present a definition of recurrent implantation failure that accounts for the effects of female age and anticipated blastocyst euploidy rates on cumulative implantation rates. Design: Mathematical modeling. Setting: Not applicable. Patient(s): Not applicable. Intervention(s): Mathematical modeling of cumulative implantation probability on the basis of published blastocyst euploidy rates across categories of female age. Main Outcome Measure(s): The number of blastocysts required to achieve 95% c...
An econometric analysis of fertility transition in Turkey
Yaşıt, Bilge; Tansel, Aysıt; Department of Economics (2007)
Fertility levels are investigated in the thesis because significant changes have occurred recently in the fertility levels in Turkey. It is necessary to understand the factors related to fertility level declines to determine how people behave with regard to their fertility in Turkey. It is only after understanding people’s behavior then it is possible to develop appropriate social and governmental policies. It is possible to evaluate the fertility level declines from different points of view. There are two ...
Outcomes of a GnRH Agonist Trigger Following a GnRH Antagonist or Flexible Progestin-Primed Ovarian Stimulation Cycle
Kalafat, Erkan; Turkgeldi, Engin; Yildiz, Sule; Dizdar, Merve; Keles, Ipek; Ata, Baris (2022-05-01)
A suggested explanation for the pituitary-suppressive effects of progestin-primed ovarian stimulation cycles (PPOS) is pituitary luteinizing hormone (LH) depletion with progestin exposure during the follicular phase. The GnRH agonist (GnRHa) trigger releases endogenous LH from the pituitary, and if the LH depletion theory is correct, the response to the agonist trigger would be dampened in PPOS cycles. In this study, we compared the performance of the GnRHa trigger after PPOS and GnRH antagonist ovarian sti...
Genetic aspects of human male infertility: the frequency of chromosomal abnormalities and Y chromosome microdeletions in severe male factor infertility
Vicdan, A; Vicdan, K; Gunalp, S; Kence, Aykut; Akarsu, C; Isik, AZ; Sozen, E (Elsevier BV, 2004-11-10)
Objective: The main purpose of this, study is to detect the frequency and type of both chromosomal abnormalities and Y chromosome microdeletions in patients with severe male factor infertility and fertile control subjects. The association between the genetic abnormality and clinical parameters was also evaluated. Methods: This study was carried out in 208 infertile and 20 fertile men. Results of 208 patients, 1 19 had non-obstructive azoospermia and 89 had severe oligoasthenoteratozoospermia (OAT). Seventee...
Citation Formats
S. Yildiz, E. Turkgeldi, E. Kalafat, I. Keles, D. Gokyer, and B. Ata, “Do live birth rate and obstetric outcomes vary between immediate and delayed embryo transfers following freeze-all cycles?,” JOURNAL OF GYNECOLOGY OBSTETRICS AND HUMAN REPRODUCTION, vol. 50, no. 10, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: