Karen Peeraer

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OBJECTIVE To investigate the presence and outcome of uterine vascular malformations in women with abnormal premenopausal bleeding. STUDY DESIGN In this observational study 265 consecutive patients with abnormal premenopausal bleeding were examined by the same ultrasonographer with transvaginal gray-scale ultrasonography and color Doppler imaging. A final(More)
A retrospective cohort study was conducted with an intracytoplasmic sperm injection (ICSI) group and a naturally conceived comparison group. A total of 1655 singleton and 1102 twin ICSI births were studied with regard to perinatal outcome. Control subjects (naturally conceived pregnancies) were selected from a regional registry and were matched for maternal(More)
STUDY QUESTION Is the live birth rate (LBR) per embryo thawed/warmed higher when Day 3 cleavage stage embryos are cryopreserved by vitrification compared with slow freezing? SUMMARY ANSWER The LBR per embryo thawed/warmed was higher after vitrification than after slow freezing on Day 3, based on better embryo survival, quality and availability of embryos(More)
BACKGROUND At present, the only way to conclusively diagnose endometriosis is laparoscopic inspection, preferably with histological confirmation. This contributes to the delay in the diagnosis of endometriosis which is 6-11 years. So far non-invasive diagnostic approaches such as ultrasound (US), MRI or blood tests do not have sufficient diagnostic power.(More)
BACKGROUND Embryo selection has been based on developmental and morphological characteristics. However, the presence of an important intra-and inter-observer variability of standard scoring system (SSS) has been reported. A computer-assisted scoring system (CASS) has the potential to overcome most of these disadvantages associated with the SSS. The aims of(More)
OBJECTIVE To test the hypothesis that patients with advanced maternal age (AMA) have a higher implantation rate (IR) after embryo transfer of embryos with a normal chromosomal pattern for the chromosomes studied with preimplantation genetic screening (PGS) compared with patients who had an embryo transfer without PGS. DESIGN Prospective randomized(More)
This article reviews serious clinical complications related to assisted reproductive technology (ART) procedures (ovarian stimulation and oocyte aspiration), including ovarian hyperstimulation syndrome (OHSS), bleeding and infection. These complications are rare, but can be severe and even life-threatening. It is important that general practitioners and(More)
This study presents a case of intracytoplasmic sperm injection (ICSI) with ejaculated immotile spermatozoa from a patient with immotile cilia syndrome. Semen analysis of the patient suffering from immotile cilia syndrome revealed an extreme oligoasthenoteratozoospermia (OAT: count <1.4 x 10(6)/ml, 0% motility and 3% normal morphology). Electron microscopy(More)
BACKGROUND Although intracytoplasmic sperm injection (ICSI) is now accepted as the treatment of choice for severe male infertility, concerns about its safety and the potential risks for the offspring remain. We reviewed the literature with respect to the prevalence of major congenital malformations after the ICSI technique and supplemented these data with(More)
OBJECTIVE To test the hypothesis that differential surface-enhanced laser desorption/ionization time-of-flight mass spectrometry protein or peptide expression in plasma can be used in infertile women with or without pelvic pain to predict the presence of laparoscopically and histologically confirmed endometriosis, especially in the subpopulation with a(More)