Publications by authors named "C A Koks"

Background: The Adiana® Permanent Contraception System was a hysteroscopic tubal occlusion device but was withdrawn from the market in 2012.

Objective: To evaluate the safety, feasibility and efficacy of the Adiana hysteroscopic tubal occlusion.

Materials And Methods: A prospective observational multicentre cohort study of 300 women undergoing hysteroscopic sterilisation using the Adiana® was conducted in the Netherlands between 2009 and 2012.

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Introduction: Hysterosalpingography (HSG) and hysterosalpingo-foam sonography (HyFoSy) are commonly used tubal patency tests during the fertility work-up. Besides its diagnostic purpose, HSG with oil-based contrast can also be applied for its fertility-enhancing effect, by tubal flushing. HyFoSy is considered as less painful compared with HSG, it lacks exposure to iodinated contrast medium and ionising radiation.

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Study Objective: Essure is a hysteroscopic sterilization device that has been used in the Netherlands since 2003. Essure has received a lot of publicity due to many reported symptoms associated with the device. Because of this, increasing numbers of patients requested surgical removal of Essure devices.

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Objectives: To evaluate whether embryo transfers at blastocyst stage improve the cumulative live birth rate after oocyte retrieval, including both fresh and frozen-thawed transfers, and whether the risk of obstetric and perinatal complications is increased compared with cleavage stage embryo transfers during in vitro fertilisation (IVF) treatment.

Design: Multicentre randomised controlled trial.

Setting: 21 hospitals and clinics in the Netherlands, 18 August 2018 to 17 December 2021.

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Article Synopsis
  • A study was conducted to evaluate the effectiveness of home-based monitoring versus hospital-controlled monitoring for frozen-thawed embryo transfer (FET) timing in women undergoing assisted reproductive techniques.
  • The trial involved 1,464 women, randomly assigned to either home-based or hospital-controlled monitoring, and aimed to determine if home monitoring could achieve similar pregnancy rates without needing hospital visits.
  • Results showed nearly identical ongoing pregnancy rates in both groups (20.8% for home-based and 20.9% for hospital-controlled), confirming that home monitoring is a viable alternative without compromising fertility outcomes.
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