Amir Wiser
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View article: P-779 18-year follow-up of 609 children born after oocyte donation: comparison with IVF and spontaneous conception based on a national health registry
P-779 18-year follow-up of 609 children born after oocyte donation: comparison with IVF and spontaneous conception based on a national health registry Open
Study question To evaluate long-term health outcomes in children born after oocyte donation compared to children born after in vitro fertilization with autologous oocytes and spontaneous conception. Summary answer Children born after oocyt…
View article: Perinatal Outcomes of Singleton, Twin and Triplet Gestations after Oocyte Donation: A Retrospective, Population-Based Cohort Analysis
Perinatal Outcomes of Singleton, Twin and Triplet Gestations after Oocyte Donation: A Retrospective, Population-Based Cohort Analysis Open
Background/Objectives: Although high live birth rates are associated with oocyte donation (OD), these pregnancies are associated with increased obstetric and perinatal risks. This study evaluated maternal and neonatal risks after OD compar…
View article: P-724 Long-term health outcomes of 19 years follow-up of mothers conceived after oocyte donation based on the registry of a large healthcare organization
P-724 Long-term health outcomes of 19 years follow-up of mothers conceived after oocyte donation based on the registry of a large healthcare organization Open
Study question Short term outcomes of oocyte donation (OD) pregnancies are known. Yet, long term effect of OD pregnancies on mother’s health are lacking. Summary answer Comparing women after OD pregnancies to spontaneous pregnancies or nul…
View article: Two types of cleavage, from zygote to three cells, result in different clinical outcomes and should be treated differently
Two types of cleavage, from zygote to three cells, result in different clinical outcomes and should be treated differently Open
Research Question What is the utilization rate of embryos that exert inadequate zygote cleavage into three daughter cells? Design This study used a retrospective dataset from a single IVF Unit. A total of 3,060 embryos from 1,811 fresh IVF…
View article: Oocyte retrieval in social fertility preservation: challenging traditional beliefs on gonadotropin dosing and follicular size
Oocyte retrieval in social fertility preservation: challenging traditional beliefs on gonadotropin dosing and follicular size Open
Objectives To investigate treatment approaches for fertility preservation patients, with a focus on timing of oocyte retrieval, and to determine whether their characteristics differ from those of other IVF patients. Additionally, to evalua…
View article: Does the SARS-CoV-2 mRNA vaccine and its serum IgG levels affect fertility treatments and obstetric outcomes? An observational cohort study
Does the SARS-CoV-2 mRNA vaccine and its serum IgG levels affect fertility treatments and obstetric outcomes? An observational cohort study Open
Background Although there are some data regarding the COVID-19 vaccine and in in vitro fertilization (IVF) treatments, its potential impact in terms of serum immunoglobulin G (IgG) levels has not been evaluated prospectively. This study ai…
View article: Evaluation of women’s aging influence on sperm passage inside the fallopian tube using 3D dynamic mechanical modeling
Evaluation of women’s aging influence on sperm passage inside the fallopian tube using 3D dynamic mechanical modeling Open
The fallopian tubes play an important role in human fertility by facilitating the spermatozoa passage to the oocyte as well as later actively facilitating the fertilized oocyte transportation to the uterus cavity. The fallopian tubes under…
View article: Stain-Free Sperm Analysis and Selection for Intracytoplasmic Sperm Injection Complying with WHO Strict Normal Criteria
Stain-Free Sperm Analysis and Selection for Intracytoplasmic Sperm Injection Complying with WHO Strict Normal Criteria Open
This multi-center study evaluated a novel microscope system capable of quantitative phase microscopy (QPM) for label-free sperm-cell selection for intracytoplasmic sperm injection (ICSI). Seventy-three patients were enrolled in four in vit…
View article: Novel non-toxic technology of sperm selection for ICSI comply with WHO strict normal criteria for stained sperm cells
Novel non-toxic technology of sperm selection for ICSI comply with WHO strict normal criteria for stained sperm cells Open
The authors have requested that this preprint be removed from Research Square.
View article: P-204 The pattern of the zygote cleavage to three cells must be considered before embryo transfer
P-204 The pattern of the zygote cleavage to three cells must be considered before embryo transfer Open
Study question What is the clinical outcome of instant irregular cleavage (IDC) from zygote to three cells? Summary answer IDC embryos, did not develop to blastocysts and did not acieve pregnancy; FC embryos that reached blastocyst stage e…
View article: P-416 Age and Oocyte Donation: An Analysis of Pregnancy Outcomes in Women Under and Above 45
P-416 Age and Oocyte Donation: An Analysis of Pregnancy Outcomes in Women Under and Above 45 Open
Study question Do Maternal and Neonatal Risks Increase among oocyte recipients > 45 years compared to younger oocyte recipients? Summary answer This study fails to demonstrate increased maternal and neonatal complications among oocyte r…
View article: P-109 Letrozole versus hormone replacement therapy for frozen embryo transfer: A randomized clinical trial
P-109 Letrozole versus hormone replacement therapy for frozen embryo transfer: A randomized clinical trial Open
Study question Do the outcomes of frozen embryo transfer cycles differ according to endometrial preparation (EP) with letrozole versus hormone replacement therapy (HRT)? Summary answer Letrozole seems to be as effective as HRT preparation …
View article: P-778 Same mother-different Oocyte: Comparison of obstetric and perinatal outcomes between pregnancies achieved through oocyte donation versus those achieved through spontaneous conception for the same mother
P-778 Same mother-different Oocyte: Comparison of obstetric and perinatal outcomes between pregnancies achieved through oocyte donation versus those achieved through spontaneous conception for the same mother Open
Study question Is there a difference in obstetrical and perinatal outcomes between pregnancies achieved through oocyte donation versus those achieved through spontaneous conception for the same mother Summary answer OD pregnancies show hig…
View article: The Effect of Month-Long Daily Fasting on Semen Parameters: A Retrospective Cohort Study
The Effect of Month-Long Daily Fasting on Semen Parameters: A Retrospective Cohort Study Open
Objective: The aim of the study was to determine whether Ramadan month-long daily fasting affects semen analysis parameters. Methods: This retrospective cohort study was conducted in tertiary academic medical center. Medical records of 97 …
View article: GnRH agonist-triggering ovulation in women with advanced age
GnRH agonist-triggering ovulation in women with advanced age Open
This study evaluates the effect of GnRH agonist (GnRHa) trigger for ovulation induction among women with advanced maternal age (AMA). This is a retrospective study performed at a single assisted reproductive technology centre, 2012 to 2020…
View article: High physical activity and ovarian reserve: a prospective study of normo-ovulatory professional athletes
High physical activity and ovarian reserve: a prospective study of normo-ovulatory professional athletes Open
Background This study investigated whether high physical activity affects ovarian reserve in normo-ovulatory, reproductive-age women. Methods This prospective, observational study compared 31 professional female athletes, with 31 women who…
View article: Male Oxidative Stress Infertility (MOSI): Proposed Terminology and Clinical Practice Guidelines for Management of Idiopathic Male Infertility
Male Oxidative Stress Infertility (MOSI): Proposed Terminology and Clinical Practice Guidelines for Management of Idiopathic Male Infertility Open
Despite advances in the field of male reproductive health, idiopathic male infertility, in which a man has altered semen characteristics without an identifiable cause and there is no female factor infertility, remains a challenging conditi…
View article: Neutrophils to lymphocytes ratio and platelets to lymphocytes ratio in pregnancy: A population study
Neutrophils to lymphocytes ratio and platelets to lymphocytes ratio in pregnancy: A population study Open
In our cohort, there were generally no differences between the high-risk and the normal population, excluding patients with a fibroid uterus or inflammatory bowel disease who presented a significantly elevated PLR through all trimesters. B…