Schats R

Study questionDoes a short interval (i.e. ≤90 min), compared to a long interval (i.e. ≥180 min), between semen collection and intrauterine insemination (IUI) increase the cumulative chance of an ongoing pregnancy after six IUI cycles?Summar…

BackgroundLong-term effects of assisted reproductive technology (ART) on ovarian tumor risk are unknown.MethodsThis nationwide cohort study comprises 30 625 women who received ovarian stimulation for ART in 1983-2000 and 9988 subfertile wom…

AbstractStudies evaluating pregnancy outcomes after assisted reproductive treatment (ART) in women with high-normal (2.5-4.5 mIU/L) thyroid-stimulating hormone (TSH) levels are conflicting, possibly due to different patient charactistics an…

ObjectiveTo study whether markers of prenatal exposure to reproductive hormones are related to Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome, polycystic ovary syndrome (PCOS), and endometriosis.DesignCase-control study. Comparison of sex h…

STUDY QUESTION: Does a previous Caesarean section affect reproductive outcomes, including live birth, in women after IVF or ICSI? SUMMARY ANSWER: A previous Caesarean section impairs live birth rates after IVF or ICSI compared to a previou…

STUDY QUESTIONS: The primary objective is to investigate if continuous use of oral contraceptives is non-inferior compared to long-term pituitary desensitization with a GnRH agonist prior to IVF/ICSI in patients with moderate to severe endo…

Study questionDoes lower quartile normal range thyroid stimulating hormone (TSH) compared to higher quartile normal range in women without thyroid hormone substitution affect live birth rate after a complete IUI treatment series?Summary ans…

Background/aimTo compare the pregnancy outcome of singletons conceived after transfer of cryopreserved and thawed embryos (frozen embryo transfer [FET]) to singletons conceived after fresh embryo transfer (fresh ET) and natural conceived si…

Study questionDoes the addition of a low-quality embryo in fresh Day 3 double embryo transfer (DET) affect the ongoing pregnancy rate (OPR) and multiple gestation rate in patients with only one or no high-quality embryos available?Summary a…

Performing intrauterine insemination (IUI) in moderate-to-severe endometriosis patients is not implemented in international guidelines, as only limited data exist on treatment efficacy and safety. This retrospective study examined the effic…

A prospective observational cohort study was performed to examine patient satisfaction after one Assisted Reproductive Technology (ART) treatment cycle in moderate to severe endometriosis patients. From May 2012 till September 2013, 25 pati…

Long-term pituitary down-regulation with a gonadotrophin-releasing hormone (GnRH) agonist for 3–6 months prior to IVF/intracytoplasmic sperm injection (ICSI) improves clinical pregnancy rates in endometriosis patients. However, some discuss…

PurposeTo generate novel, objective variables that resemble embryo quality and relate them to ongoing implantation, using multilevel imaging of single-transferred embryos.MethodsRetrospective analysis of multilevel images of 659 day 3 singl…

ObjectiveTo investigate the success rate of proximal tubal occlusion with Essure(®) devices in subfertile women with unilateral or bilateral hydrosalpinx and to observe the results of subsequent treatment with IVF-ET and/or frozen embryo tr…

ObjectiveBoth the intraperitoneal seeding and the uterine-vesical extension theory have been proposed to explain the pathogenesis of bladder endometriosis. The aim of this study was to describe MR imaging findings of bladder endometriosis a…

ObjectivesTo establish the effect of adenomyosis on IVF/ICSI outcomes in infertile patients with endometriosis who were pretreated with long-term (>/=3 months) GnRH-agonist prior to IVF/ICSI.Study designRetrospective study in 74 infertile p…