Ben W. Mol

OBJECTIVES: The anti-Mullerian hormone (AMH) test has been promoted as a way to inform women about their future fertility. However, data consistently show the test is a poor predictor of natural fertility potential for an individual woman. …

BACKGROUND: Randomised controlled trials (RCTs) evaluating ectopic pregnancy have reported many different outcomes, which are themselves often defined and measured in distinct ways. This level of variation results in an inability to compare…

INTRODUCTION: Recently, the rate of caesarean sections (CS) worldwide has risen and CS-associated complications such as niche have increased substantially. Until now, evidence-based clinical guidelines for the treatment of niche-related sym…

We aim to first systematically review and perform a meta-analysis of the diagnostic accuracy of transvaginal ultrasound (TVUS) and magnetic resonance imaging (MRI) and, second, to evaluate the accuracy of various sonographic diagnostic crit…

INTRODUCTION: Tubal patency testing is an essential part in the fertility workup of many subfertile women. Hysterosalpingography (HSG) has long been the test of choice in many clinics. There is evidence from a large randomised multicentre t…

OBJECTIVE: To review the diagnostic accuracy and determine the optimum imaging modality for the detection of bladder deep endometriosis (DE) in women with a clinical suspicion of endometriosis. METHODS: A systematic review of studies publi…

STUDY QUESTION: Is there an ideal imaging modality for the detection of uterosacral ligaments/torus uterinus (USL), rectovaginal septum (RVS) and vaginal deep endometriosis (DE) in women with a clinical history of endometriosis? SUMMARY AN…

OBJECTIVES: To review the accuracy of different imaging modalities for the detection of rectosigmoid deep endometriosis (DE) in women with clinical suspicion of endometriosis, and to determine the optimal modality. METHODS: A search was co…

OBJECTIVE: To develop a core outcome set for endometriosis. DESIGN: Consensus development study. SETTING: International. POPULATION: One hundred and sixteen healthcare professionals, 31 researchers and 206 patient representatives. METHO…

Background: Uterine peristalsis occurs in the endometrial–myometrial junctional zone. It is involved in sperm transport and embryo implantation in spontaneous and in vitro fertilization (IVF) cycles. We investigated the reproducibility of t…

INTRODUCTION: Perioperative infections may be considered predictors of caesarean scar defect (CSD), and multidose antibiotics have a protective effect against CSD. However, the ability of adjunctive azithromycin combined with cephalosporin …

INTRODUCTION: The time-lapse imaging system (TLS) is a newly developed non-invasive embryo assessment system. Compared with conventional incubators, a TLS provides stable culture conditions and consistent observations of embryo development,…

STUDY QUESTION: Do diet, physical activity and contraceptive use change after receiving a diagnosis of polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Using longitudinal data 12 months apart, young women newly diagnosed with PCOS were mo…

The uterine junctional zone represents the juncture between endometrium and myometrium. The junctional zone is hormonally dependent and displays continuous peristaltic activity throughout the menstrual cycle in the nonpregnant state which i…

OBJECTIVE: To compare the effectiveness of different treatments for women with endometriosis-related infertility. DESIGN: A systematic review and network meta-analysis of randomized controlled trials (RCTs). SETTING: Not applicable. PATI…

BACKGROUND: Polycystic ovary syndrome (PCOS) is a common condition affecting 8% to 13% of reproductive-aged women. In the past clomiphene citrate (CC) used to be the first-line treatment in women with PCOS. Ovulation induction with letrozol…

BACKGROUND: Tubal disease accounts for 20% of infertility cases. Hydrosalpinx, caused by distal tubal occlusion leading to fluid accumulation in the tube(s), is a particularly severe form of tubal disease negatively affecting the outcomes o…

BACKGROUND: Establishing the subgroup analysis of the fallopian tubes (tubes) is a commonly undertaken diagnostic investigation for women with subfertility. This is usually achieved by flushing contrast medium through the tubes and visualis…

STUDY QUESTION: What is the effect of uterine bathing with sonography gel prior to IVF/ICSI-treatment on live birth rates after fresh embryo transfer in patients with endometriosis? SUMMARY ANSWER: After formal interim analysis and prematu…

(Abstracted from J Minim Invasive Gynecol 2020;27:390–407) Endometriosis is an inflammatory disease characterized by endometrium-like lesions outside the uterus. Pelvic pain and infertility are hallmarks of the disorder.

BACKGROUND: We tested whether childhood adversity is associated with poor cardiometabolic health in adulthood among a sample of overweight or obese Dutch women of reproductive age. Health behaviors, psychological distress, mood symptoms, or…

RESEARCH QUESTION: The prevalence of infertility in couples actively trying to conceive is 25%. What is the consultation-seeking behaviour, diagnosis and related treatment in infertile couples across China? DESIGN: Large cross-sectional po…

PURPOSE: To identify demographic, (bio)physical, behavioral, and psychological determinants of successful lifestyle change and program completion by performing a secondary analysis of the intervention arm of a randomized-controlled trial, i…

BACKGROUND: Clinical management for unexplained infertility includes expectant management as well as active treatments, including ovarian stimulation (OS), intrauterine insemination (IUI), OS-IUI,  and in vitro fertilisation (IVF) with or w…