Michael H. Dahan

Letrozole and other aromatase inhibitors are increasingly recognized as first-line ovulation induction (OI) medications, offering an efficient and physiologic approach to ovarian stimulation that enhances outcomes in reproductive medicine. …

OBJECTIVE: To assess the adequate ovarian follicular development and oocyte recovery between ovarian potential (antral follicle count [AFC]) before the start of ovarian stimulation (OS) and oocyte quantity and quality at oocyte retrieval. A…

Background: Despite significant advances in assisted reproductive technology (ART), disparities in clinical outcomes persist. While patient-related factors are well-studied, the role of partner ethnicity remains understudied. We hypothesize…

ObjectiveTo assess the influence of basal serum levels of luteinizing hormone (LH), total testosterone (TT), and free testosterone (FT) on in vitro fertilization (IVF) success rates in patients with polycystic ovary syndrome (PCOS).Material…

PURPOSE: PCOS and endometriosis are independent risk factors for perinatal outcomes. Little research has evaluated the concomitant effects of these conditions, nor have studies been conducted on a population database. We sought to identify …

BackgroundThis study aims to determine whether pre or post-processing semen parameters obtained during intrauterine insemination (IUI) predict pregnancy when controlling for confounding effects.Materials and methodsA prospective cohort stud…

OBJECTIVE: To assess obstetric outcomes and placental findings in pregnancies attained by in vitro fertilization (IVF) in patients with diminished ovarian reserve (DOR). DESIGN: Retrospective cohort study. SETTING: University-affiliated t…

Abstract Study question Does adenomyosis impact reproductive and neonatal outcomes? Summary answer Adenomyosis increases risk of infertility and pregnancy/delivery complications. Increased surveillance may aid in prevention and/or decreasin…

"Hysterectomy, a time to change the terminology." Journal of Psychosomatic Obstetrics & Gynecology, ahead-of-print(ahead-of-print), pp. 1–2

Abstract Study question Does endometriosis have an effect on the placental histopathology patterns in singleton live births resulting from in-vitro fertilization? Summary answer Endometriosis is associated with acute chorioamnionitis, place…

OBJECTIVE: Incarcerated uterus occurs at a rate of 1:3000 pregnancies. Previous studies focused on risk factors and management options, providing limited information about pregnancy outcomes. This study evaluates the effect of incarcerated …

RESEARCH QUESTION: Does endometriosis have an effect on the placental histopathology pattern and perinatal outcome in singleton live births resulting from IVF treatment? DESIGN: Retrospective cohort study evaluating the data on all live bi…

ObjectiveTo compare the success of ovulation induction using oral agents versus gonadotropins (GTs) in women ≥38 years old.Study designA retrospective cohort study was performed including all first to third stimulated IUI cycles conducted a…

OBJECTIVE: To determine whether 2 months of pretreatment with 5 mg of letrozole daily plus leuprolide acetate at 3.75 mg monthly in women with laparoscopically confirmed American Society of Reproductive Medicine stage I-II endometriosis imp…

ObjectiveTo compare the influence of dual suppression with the use of GnRH agonist plus aromatase inhibitor compared with suppression with the use of GnRH agonist alone or no suppression at all in patients with idiopathic recurrent implanta…

Research questionDoes the addition of an aromatase inhibitor improve IVF outcomes in women with endometriomas when pretreating them with gonadotrophin-releasing hormone agonists?DesignRetrospective two-centre cohort study involving 126 wome…

PurposeTo assess effects on fertilization rate, embryo quality, pregnancy, and live birth rates of vitrification and warming of oocytes that matured in vitro (vIVM) compared to fresh in vitro maturation (fIVM) cycles.MethodsA retrospective …

Endometriosis is common among those with infertility, although many cases go undiagnosed. This study was performed to determine whether empiric treatment with two months of depo-leuprolide 3.75 mg monthly (dep-GnRH-ag) and letrozole 5 mg da…

BackgroundThis study compared rates of pregnancy and in vitro fertilization (IVF) parameters in subjects stimulated with follicle stimulating hormone (FSH) plus either recombinant human luteinizing hormone (r-LH) or human menopausal gonadot…

PurposeMaternal obesity has been shown to affect reproductive function and pregnancy outcomes following in vitro fertilization. More recently, studies have demonstrated lower live birth rates after single blastocyst transfer (SBT) in patien…

BackgroundThe objective of this retrospective study was to evaluate the effect of semen processing on computer analyzed semen parameters and pregnancy rates after intrauterine insemination (IUI).MethodsOver a two-year period, a total of 981…