J Smeenk

ORCID: 0000-0002-3053-0358 · 9 papers in corpus
other 2024
Survey on ART and IUI: legislation, regulation, funding, and registries in European countries-an update
Human reproduction (Oxford, England) ·doi:10.1093/humrep/deae163

STUDY QUESTION: How are ART and IUI regulated, funded, and registered in European countries, and how has the situation changed since 2018? SUMMARY ANSWER: Of the 43 countries performing ART and IUI in Europe, and participating in the surve…

rct 2022
Economic evaluation of endometrial scratching before the second IVF/ICSI treatment: a cost-effectiveness analysis of a randomized controlled trial (SCRaTCH trial)
Human reproduction (Oxford, England) ·doi:10.1093/humrep/deab261

STUDY QUESTION: Is a single endometrial scratch prior to the second fresh IVF/ICSI treatment cost-effective compared to no scratch, when evaluated over a 12-month follow-up period? SUMMARY ANSWER: The incremental cost-effectiveness ratio (…

rct 2021
Endometrial scratching in women with one failed IVF/ICSI cycle-outcomes of a randomised controlled trial (SCRaTCH)
Human reproduction (Oxford, England) ·doi:10.1093/humrep/deaa268

STUDY QUESTION: Does endometrial scratching in women with one failed IVF/ICSI treatment affect the chance of a live birth of the subsequent fresh IVF/ICSI cycle? SUMMARY ANSWER: In this study, 4.6% more live births were observed in the scr…

observational 2020
Survey on ART and IUI: legislation, regulation, funding and registries in European countries: The European IVF-monitoring Consortium (EIM) for the European Society of Human Reproduction and Embryology (ESHRE)
Human reproduction open ·doi:10.1093/hropen/hoz044

STUDY QUESTION: How are ART and IUI regulated, funded and registered in European countries? SUMMARY ANSWER: Of the 43 countries performing ART and IUI in Europe, and participating in the survey, specific legislation exists in only 39 count…

rct 2019
Treatment effect of oil-based contrast is related to experienced pain at HSG: a post-hoc analysis of the randomised H2Oil study
Human reproduction (Oxford, England) ·doi:10.1093/humrep/dez206

STUDY QUESTION: Does pain or volume of used contrast medium impact the effectiveness of oil-based contrast during hysterosalpingography (HSG)? SUMMARY ANSWER: In women who report moderate to severe pain during HSG, the use of oil-based con…

rct 2017
Endometrial scratching in women with implantation failure after a first IVF/ICSI cycle; does it lead to a higher live birth rate? The SCRaTCH study: a randomized controlled trial (NTR 5342)
BMC women's health ·doi:10.1186/s12905-017-0378-y

BACKGROUND: Success rates of assisted reproductive techniques (ART) are approximately 30%, with the most important limiting factor being embryo implantation. Mechanical endometrial injury, also called 'scratching', has been proposed to posi…

rct 2015
Prevention of multiple pregnancies in couples with unexplained or mild male subfertility: randomised controlled trial of in vitro fertilisation with single embryo transfer or in vitro fertilisation in modified natural cycle compared with intrauterine insemination with controlled ovarian hyperstimulation
BMJ (Clinical research ed.) ·doi:10.1136/bmj.g7771

OBJECTIVES: To compare the effectiveness of in vitro fertilisation with single embryo transfer or in vitro fertilisation in a modified natural cycle with that of intrauterine insemination with controlled ovarian hyperstimulation in terms of…

other 2014
Immunohistochemical expression of MMP-14 and MMP-2, and MMP-2 activity during human ovarian follicular development
Reproductive biology and endocrinology : RB&E ·doi:10.1186/1477-7827-12-12

BACKGROUND: The aim of this study was to investigate the presence of MMP-14 and MMP-2 during human ovarian follicular development using immunohistochemistry, and the activity of MMP-2 in follicular fluid using zymography. METHODS: Ovarian …

observational 2011
Risk of borderline and invasive ovarian tumours after ovarian stimulation for in vitro fertilization in a large Dutch cohort
Human reproduction (Oxford, England) ·doi:10.1093/humrep/der322

BACKGROUND: Long-term effects of ovarian stimulation for IVF on the risk of ovarian malignancies are unknown. METHODS: We identified a nationwide historic cohort of 19,146 women who received IVF treatment in the Netherlands between 1983 an…