Michael H. Dahan

PURPOSE: To evaluate the effect of the COVID-19 pandemic state on early, first-trimester pregnancies. METHODS: A retrospective cohort study conducted at a university-affiliated fertility center in Montreal, Quebec, since the COVID-19 shut …

OBJECTIVE: To compare the success of ovulation induction using oral agents versus gonadotropins (GTs) in women ≥38 years old. STUDY DESIGN: A retrospective cohort study was performed including all first to third stimulated IUI cycles condu…

PURPOSE: To evaluate the effect of non-cavity-distorting intramural leiomyomas on the placental histopathology pattern and perinatal outcome in singleton live births resulting from in vitro fertilization treatment. METHODS: The study popul…

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…

OBJECTIVE: To 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 implan…

RESEARCH QUESTION: Does the addition of an aromatase inhibitor improve IVF outcomes in women with endometriomas when pretreating them with gonadotrophin-releasing hormone agonists? DESIGN: Retrospective two-centre cohort study involving 12…

PURPOSE: To 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. METHODS: A retrospe…

OBJECTIVE: To evaluate the relationship of one or a combination of semen analysis parameter results on insemination outcomes. MATERIAL AND METHODS: A retrospective analysis was performed to evaluate the effect on pregnancy rates in relatio…

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…

BACKGROUND: This 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 gonad…

PURPOSE: The purpose of this study was to investigate reproductive outcomes following elective single blastocyst transfer (eSBT) compared with those of double blastocyst transfer (DBT) in advanced maternal age. METHODS: This was a retrospe…

PURPOSE: Maternal 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 pati…

BACKGROUND: The 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). METHODS: Over a two-year period, a total …

BACKGROUND: The aim of this study was to examine the surgical findings at repeated surgeries for endometriosis and to compare disease progression in patients after IVF to those without interval fertility treatments. METHODS: A retrospectiv…

The treatment of minimal or mild endometriosis prior to assisted reproduction (ranging from intrauterine insemination to in vitro fertilization [IVF]) to improve the likelihood of success is controversial. Ovulation suppression is commonly …

The treatment of minimal or mild endometriosis prior to non-in-vitro fertilization (IVF) assisted reproduction to improve pregnancy outcomes is controversial. Ovulation suppression may be offered to women who do not wish to conceive to supp…

OBJECTIVE: To evaluate the results of the in vitro fertilization (IVF) cycle outcomes in women whose borderline basal follicle stimulating hormone (FSH) levels were between 10.0 and 11.9 IU/L and to analyze the predictors of pregnancy in th…

OBJECTIVE: The purpose of this study is to evaluate factors predictive of outcomes in women with highest follicle-stimulating hormone (FSH) levels ≥ 12 IU/L on basal testing, undergoing in vitro fertilization (IVF). METHODS: A prospective …

OBJECTIVE: To compare complication rates and pain scores after oocyte pickup (OPU) in in vitro maturation (IVM) and IVF cycles. DESIGN: Retrospective cohort study. SETTING: University-affiliated ART center. PATIENT(S): One hundred eighty…

Infertility outcomes can be influenced by many factors. Although a number of treatments are offered, deciding which one to use first is a controversial topic. Although IVF may have superior efficacy in achieving a live birth with a reasonab…

OBJECTIVE: To identify pre or post processing semen analysis parameters that may be predictive of successful pregnancy in couples with male factor infertility undergoing intra uterine insemination (IUI). To evaluate the pregnancy rate based…