The journal of obstetrics and gynaecology research

OBJECTIVE: To analyze the correlation between angiopoietin-like protein 8 (ANGPTL8) and polycystic ovary syndrome (PCOS) and explore the clinical diagnostic value of ANGPTL8 in PCOS. METHODS: In this retrospective case-control study, we in…

Complete hydatidiform mole with a coexisting live fetus in a twin pregnancy is exceptionally rare and carries major maternal and fetal risks. We describe two such pregnancies to illustrate management options. The first followed frozen-thawe…

AIM: Despite growing public attention toward infertility treatments and elective oocyte cryopreservation, awareness of fertility among young adults remains limited. Accurate knowledge of age-related fertility declines and ovarian reserve is…

AIM: Combined oral contraceptives (COCs) are often avoided in women with migraine because of concerns about ischemic stroke. However, the risk associated with low-dose and ultra-low-dose COCs remains unclear. We aimed to evaluate the risk o…

AIM: To assess the utility of intraoperative transvaginal ultrasonography (TVUS) in evaluating the duration of blood flow in cervical hypervascularity as a real time diagnostic marker for placenta accreta spectrum (PAS) in placenta previa. …

AIM: To clarify live birth outcomes among women receiving extended or repeated high-dose medroxyprogesterone acetate (MPA) therapy for fertility-sparing management of atypical endometrial hyperplasia or endometrioid carcinoma grade 1. METH…

Cervical large-cell neuroendocrine carcinoma (LCNEC) is a rare and highly aggressive malignancy with poor prognoses, particularly in advanced or recurrent disease. We describe a case of advanced and recurrent cervical LCNEC in which long-te…

AIM: To elucidate the neonatal and neurodevelopmental outcomes of infants born via Category 1 cesarean section (CS) in a Japanese tertiary perinatal center. METHODS: Infants born via Category 1 CS from 2015 to 2019 at the National Center f…

AIM: Patients with preoperatively diagnosed venous thromboembolism (VTE) present complex management challenges, and optimal strategies for gynecological surgery remain unclear. Because malignancy is a major risk factor for VTE, perioperativ…

AIM: To identify the predictors of the onset of hypertensive disorders of pregnancy (HDP) in pregnant women in Japan. METHODS: This population-based, retrospective cohort study was conducted in Shizuoka Prefecture, Japan, using data from t…

AIM: To evaluate reproductive outcomes after tubal reanastomosis during long-term follow-up, with emphasis on clinical pregnancy, live birth, ectopic pregnancy, and time to pregnancy. METHODS: This retrospective single-center study include…

AIM: To map and characterize the available evidence on podcasts addressing topics related to women's health. METHODS: This scoping review was conducted in accordance with the Joanna Briggs Institute (JBI) guidelines. A comprehensive search…

INTRODUCTION: Hydrosalpinx is a major cause of tubal factor infertility. Hysterosalpingography (HSG) is the primary method for assessing tubal patency and hydrosalpinx, but its complications have prompted the use of hysterosalpingo-foam son…

BACKGROUND: To compare the transvaginal natural orifice transluminal endoscopic surgery (vNOTES) approach versus conventional laparoscopy in bilateral tubal ligation for interval sterilization regarding perioperative outcomes, postoperative…

Parasitic myoma is a relatively rare disease in which one or more leiomyomas form outside the uterus; however, the detailed causes are unknown. Few sporadic reports are available, and per our research, the maximum number of parasitic myomas…

AIM: Tissue factor pathway inhibitor 2 (TFPI2) is a preoperative biomarker that was developed to discriminate ovarian benign tumors from cancer and is covered by health insurance in Japan. The purpose of this study was to evaluate how the T…

BackgroundTo investigate the predictive role of a risk assessment model constructed using Caprini score combined with D-dimer in gynecological postoperative patients for the occurrence of deep vein thrombosis.MethodsPatients scheduled for g…

OBJECTIVE: Intestinal disorders (ID) impose a significant burden on preterm infants. Although previous studies have examined individual risk factors for types of ID such as necrotizing enterocolitis (NEC), meconium-related ileus (MRI), and …

AimProgesterone has to be administered to prepare the endometrium for frozen-thawed blastocyst transfer (FBT) in a hormone replacement cycle (HRC). The objective of this study was to investigate the efficacy and safety of using Crinone® pro…

AIM: Diffuse uterine leiomyomatosis (DUL) is characterized by numerous uterine leiomyomas within and diffusely replacing the myometrium. However, because of its rarity, the prevalence, diagnostic criteria, and standard treatment for patient…

AIM: Recent studies show that human microbiomes play a significant role in the development of endometrial carcinoma, which is a common gynecological cancer affecting women of reproductive age. This review provides an extensive analysis of h…

AIM: This study aimed to clarify the impact of coronavirus disease 2019 on gynecology practice in Japan, in particular, on surgeries for benign gynecological diseases. METHODS: An online questionnaire was distributed to 966 facilities in J…

AIM: The aim of the present study was to summarize the clinical characteristics and analyze the independent prognostic factors in patients with high-grade endometrial neuroendocrine carcinoma (ENC). METHODS: Patients diagnosed with ENC, en…

OBJECTIVE: To investigate the effectiveness of oocyte thawing cycles in the clinical application of assisted reproductive technology (ART). STUDY DESIGN: The clinical data of 78 cases who underwent oocyte thawing cycles in our center were …