BACKGROUND Single blastocyst transfer has the advantage of maximizing the fresh single pregnancy rate. However, in patients with a low number of good quality embryos on day 3, it remains unclear whether immediate embryo transfer or further embryo culture with blastocyst transfer is the most preferable option. METHODS A retrospective cohort study was carried out in which the outcome of 590 fre...

To the Editor: In summarizing their well-executed randomized trial, Progesterone in Recurrent Miscarriages (PROMISE), Coomarasamy et al. (Nov. 26 issue)1 state that there is no evidence of benefit from progesterone supplementation “in the first trimester” of pregnancy among women who have had three or more miscarriages. We wish to clarify three points. First, the trial did not address progester...

UNLABELLED can improve the rates of clinical pregnancy and live birth, but the optimal duration of treatment remains controversial. The objective of this meta-analysis was to investigate the effects of early progesterone cessation on pregnancy outcomes in women undergoing IVF/ICSI. METHODS We searched MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials (CENTRAL), the Chinese b...

Meta-analyses have found conflicting results with respect to the use of progesterone or progesterone plus estrogen as luteal phase support for in vitro fertilization (IVF) protocols involving gonadotropins and/or gonadotropin-releasing hormone analogs. The aim of the present study was to perform an updated meta-analysis on the efficacy of progesterone versus progesterone plus estrogen as luteal...

BACKGROUND The purpose of this study was to undertake an economic evaluation to compare the cost-effectiveness of recombinant (r)FSH with urinary (u)FSH for attaining clinical pregnancy with assisted reproduction. METHODS Mathematical modelling was utilized incorporating a Markovian decision framework and a Monte Carlo simulation. Statistical representations of recurrent events over time were...

CDC has updated its interim guidelines for U.S. health care providers caring for pregnant women during a Zika virus outbreak (1). Updated guidelines include a new recommendation to offer serologic testing to asymptomatic pregnant women (women who do not report clinical illness consistent with Zika virus disease) who have traveled to areas with ongoing Zika virus transmission. Testing can be off...

Asthma is characterized by lung airway inflammation initiated and perpetuated by an inappropriate immune response, increased airway responsiveness, and variable airflow obstruction. In Western countries there has been a marked increase in asthma prevalence such that it has become a public health concern. It has been hypothesized that the increase may be due to changing antioxidant intake, incre...

OBJECTIVES To assess nutrition-related knowledge and practices, including supplement use, of both pregnant women and healthcare providers that participate in antenatal shared care (ANSC). METHODS Pregnant women enrolled in ANSC (n = 142) completed a knowledge and practices survey and a validated iodine-specific Food Frequency Questionnaire. General practitioners (GP) and nurses (N = 61) parti...

OBJECTIVE To study the efficacy, safety, and acceptability of oral immediately swallowed and buccal misoprostol 800 mcg after mifepristone 200 mg for terminating pregnancy through 63 days since the last menstrual period (LMP). METHODS This seven-site study randomly assigned 966 women seeking abortions to oral or buccal misoprostol 800 mcg 24-36 hours after mifepristone 200 mg with 7-14-day fo...

Health-care delivery according to clinical practice guidelines is thought to be critical in achieving optimal outcomes. This study aimed to assess the extent to which practice performance in intrauterine insemination (IUI) care is consistent with guideline recommendations and to evaluate the association between guideline adherence and outcome of IUI care. In a retrospective cohort study, 1100 i...