BMC pregnancy and childbirth

BACKGROUND: Some infertile women can undergo spontaneous conception after 4-dimensional hysterosalpingo-contrast sonography (4D-HyCoSy). However, advised period of expectant management after HyCoSy for different tubal patency was rarely rec…

BACKGROUND: There are no specific guidelines regarding the definition, diagnostic workup and treatment of recurrent pregnancy loss (RPL) in China at present. Whether the diagnostic workup should occur after two or three or more pregnancy lo…

BackgroundTransumbilical laparoendoscopic single-site surgery (TU-LESS) has been widely used in multiple gynecological fields, but the report on its use during during pregnancy is limited. This study aimed to assess the safety and feasibili…

BACKGROUND: Women diagnosed with adenomyosis often suffer from infertility and frequently seek assisted reproductive techniques (ART). It remains unclear whether certain patients possess the potential to achieve spontaneous pregnancy. This …

BACKGROUND: Endometriosis affects approximately 10% of women of reproductive age and is associated with increased risks of infertility and miscarriage. Although the spontaneous miscarriage rate in women with endometriosis is higher than in …

BACKGROUND: The endometrioma accompanying hydrosalpinx can affect the success rate of in vitro fertilization (IVF). We aimed to determine the incidence of hydrosalpinx in infertile patients with endometrioma and its effects on in vitro fert…

OBJECTIVE: To explore the biological relationship between the regulatory signal pathways involved in differentially expressed genes and recurrent spontaneous abortion (RSA) by analyzing the gene expression microarray data of unexplained RSA…

BACKGROUND: Postpartum hemorrhage is one of the leading causes of maternal mortality and morbidity. The etiology of postpartum hemorrhage exhibits variations in relation to the mode of birth; consequently, risk factors for massive transfusi…

BACKGROUND: Cervical insufficiency is a pathological condition in obstetrics in which the cervix fails to retain the fetus before uterine contractions or labor (painless cervical dilatation). Patients usually have fetal loss in the mid-trim…

BACKGROUND: Recently, a history of endometriosis has been reported to be associated with several perinatal complications. However, it is unknown whether pre-pregnancy treatment for endometriosis reduces perinatal complications. In this stud…

BACKGROUND: With the increasing incidence of obesity and the childbearing-age delay among women, a debate over obesity's impacts on pregnancy and neonatal outcomes becomes hot. The potential negative effects of obesity and aging on fertilit…

BACKGROUND: Polycystic ovarian syndrome (PCOS) is a common endocrine and metabolic disease in women. Hyperandrogenaemia (HA) and insulin resistance (IR) are the basic pathophysiological characteristics of PCOS. The aetiology of PCOS has not…

BACKGROUND: The causes of infertility have remained an important challenge. The relationship between VDR gene polymorphisms and infertility has been reported, with controversial findings. OBJECTIVE AND RATIONALE: We aimed to determine this…

OBJECTIVE: We aimed to investigate the significance of autophagy proteins and their association with clinical data on pregnancy loss in polycystic ovary syndrome (PCOS), while also constructing predictive models. METHODS: This study was a …

BACKGROUND: Endometriosis is an underdiagnosed disorder that affects an estimated 6-10% of women of reproductive age. Endometriosis has been reported in epidemiological studies to be associated with autoimmune diseases. However, the relatio…

BACKGROUND: Uterine rupture in pregnant women can lead to serious adverse outcomes. This study aimed to explore the clinical characteristics, treatment, and prognosis of patients with complete uterine rupture. METHODS: Data from 33 cases o…

OBJECTIVE: To investigate the feasibility of performing frozen-thawed high-quality single blastocyst transfer in women of different ages. METHODS: A total of 1,279 women were divided into four groups: a 38-40-year-old group (n = 147), 35-3…

BACKGROUND: This study was designed to evaluate pregnancy outcomes between morulae transferred on day 4 (D4) and blastocysts transferred on day 5 (D5). METHODS: From September 2017 to September 2020, 1963 fresh transfer cycles underwent ea…

BACKGROUND AND AIMS: Although minimally invasive hysterectomy offers advantages, abdominal hysterectomy remains the predominant surgical method. Creating a standardized dataset and establishing a hysterectomy registry system present opportu…

BACKGROUND: The effects of female chromosomal polymorphisms (FCPs) on various aspects of reproductive health have been investigated, yet the findings are frequently inconsistent. This study aims to clarify the role of FCPs on the outcomes o…

BACKGROUND: To evaluate the risk factors associated with WOI (window of implantation) displacement based on ERT (endometrial receptivity test), and to confirm the association of ectopic pregnancy with WOI displacement. METHODS: This is a r…

BACKGROUND: Previous studies have reported inconsistent results regarding blastocyst selection with a high day 3 (D3) cell number and the eventual pregnancy outcomes. Thus, in this study, the relationship between the D3 cell number and clin…

BACKGROUND: The aim of this retrospective cohort study was to assess the impact of day 3(D3) embryo cell number on the clinical pregnancy and neonatal outcomes of day 4(D4) single embryo transfer in fresh cycles. METHODS: The study include…

BACKGROUND: Non-invasive chromosome screening (NICS) and trophectoderm biopsy preimplantation genetic testing for aneuploidy (TE-PGT) were both applied for embryo ploidy detection, However, the cumulative live birth rates (CLBR) of NICS and…

BACKGROUND: Surgery for adnexal mass does occur in pregnant women and therefore the choice of surgery during pregnancy needs to be carefully considered and studied. This study aimed to evaluate the safety and feasibility of Laparo-endoscopi…