J W M Maas

No ORCID on file · 10 papers in corpus
nonrandomized-trial 2025
BMC women's health ·doi:10.1186/s12905-025-03715-1

BACKGROUND: Patients with endometriosis often experience bowel symptoms such as changing stool, abdominal pain and bloating similar to those associated with irritable bowel syndrome. These symptoms reduce quality of life (QoL). Visceral hyp…

qualitative 2025
European journal of obstetrics, gynecology, and reproductive biology ·doi:10.1016/j.ejogrb.2025.113999

OBJECTIVE: The aim of this qualitative study was to identify considerations, objections, and preferences of women with symptomatic ovarian endometrioma in the shared decision-making process. DESIGN: This study was conducted as a qualitativ…

meta-analysis 2024
European journal of obstetrics, gynecology, and reproductive biology ·doi:10.1016/j.ejogrb.2023.12.012

For patients with endometrioma it is unclear what treatment: surgery and/or medication, is more effective in reducing pain and improving quality of life (QoL). This systematic review and meta- analysis aimed to provide an overview of the ex…

rct 2022
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
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…

other 2020
Human reproduction open ·doi:10.1093/hropen/hoz046

STUDY QUESTIONS: The objective of this study is to evaluate the effectiveness and cost-effectiveness of surgical treatment of women suffering from pain due to an ovarian endometrioma when compared to treatment with medication (analgesia and…

other 2018
BMC pregnancy and childbirth ·doi:10.1186/s12884-018-2160-z

BACKGROUND: In the Netherlands, couples with unexplained infertility and a good prognosis to conceive spontaneously (i.e. Hunault > 30%) are advised to perform timed intercourse for at least another 6 months. If couples fail to conceive wit…

rct 2017
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…

other 2016
BJOG: An International Journal of Obstetrics & Gynaecology ·doi:10.1111/1471-0528.14371

OBJECTIVE: To report pregnancy outcomes of SHiP (spontaneous haemoperitoneum in pregnancy) and the association with endometriosis. DESIGN: Retrospective case note review. SETTING: Dutch referral hospitals for endometriosis. SAMPLE: Eleve…

rct 2015
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…