Berntsen S

ORCID: 0000-0001-9769-5002 · 4 papers in corpus
meta-analysis 2026
Does intracytoplasmic sperm injection outperform conventional in vitro fertilization in couples without severe male factor infertility? A systematic review and meta-analysis of randomized controlled trials
Human reproduction (Oxford, England) ·doi:10.1093/humrep/deag066

STUDY QUESTION: Does ICSI improve the live birth rate in couples without severe male factor infertility compared to conventional IVF (cIVF)? SUMMARY ANSWER: High-quality evidence showed no benefit of ICSI over cIVF in improving live birth …

rct 2025
IVF versus ICSI in patients without severe male factor infertility: a randomized clinical trial
Nature medicine ·doi:10.1038/s41591-025-03621-x

Intracytoplasmic sperm injection (ICSI) and conventional in vitro fertilization (c-IVF) are widely used fertilization techniques in assisted reproduction, but their relative effectiveness in patients without severe male factor infertility r…

meta-analysis 2023
Endometrial scratching in women undergoing IVF/ICSI: an individual participant data meta-analysis
Human Reproduction Update ·doi:10.1093/humupd/dmad014

BACKGROUND: In IVF/ICSI treatment, the process of embryo implantation is the success rate-limiting step. Endometrial scratching has been suggested to improve this process, but it is unclear if this procedure increases the chance of implanta…

other 2021
In vitro fertilisation (IVF) versus intracytoplasmic sperm injection (ICSI) in patients without severe male factor infertility: study protocol for the randomised, controlled, multicentre trial INVICSI
BMJ open ·doi:10.1136/bmjopen-2021-051058

INTRODUCTION: Over the last decades, the use of intracytoplasmic sperm injection (ICSI) has increased, even among patients without male factor infertility. The increase has happened even though there is no evidence to support that ICSI resu…