Fulco van der Veen

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Objective To compare reproductive outcomes in couples carrying a structural chromosome abnormality and non-carrier couples referred for chromosome analysis after two or more miscarriages. Design Case-control study. Setting Six centres for clinical genetics in the Netherlands. Participants 278 carrier couples and 427 non-carrier couples referred for(More)
BACKGROUND Patients with ectopic pregnancy (EP) and low serum hCG concentrations and women with a pregnancy of unknown location (PUL) and plateauing serum hCG levels are commonly treated with systemic methotrexate (MTX). However, there is no evidence that treatment in these particular subgroups of women is necessary as many of these early EPs may resolve(More)
To optimize success rates of IVF, selection of the most viable embryo(s) for transfer has always been essential, as embryos that are cryopreserved are thought to have a reduced chance of implanting after thawing. Recent developments challenge this concept. Evidence is accumulating that all embryos can now be cryopreserved and transferred in subsequent(More)
Alexandra J Bensdorp (1NeSstudie@gmail.com) Els J Slappendel (els.slappendel@catharina-ziekenhuis.nl) Carolien AM Koks (c.koks@mmc.nl) Jur GE Oosterhuis (j.oosterhuis@ziekenhuis-mst.nl) Annemieke Hoek (a.hoek@og.umcg.nl) Peter GA Hompes (P.Hompes@vumc.nl) Frank JM Broekmans (F.Broekmans@umcutrecht.nl) Harold R Verhoeve (H.R.Verhoeve@olvg.nl) Jan Peter de(More)
Current algorithms for the diagnosis of ectopic pregnancy do not take into account the heterogeneity in patient profiles. Such heterogeneity can lead to differences in the pre-test probability of ectopic pregnancy. In patients with clinical symptoms, for example, the probability of presence of an ectopic pregnancy is higher than in symptom-free patients.(More)
Ben W.J.Mol1,2,4, Jeroen G.Lijmer1, Willem M.Ankum3, Fulco van der Veen2 and Patrick M.M.Bossuyt1 1Department of Clinical Epidemiology and Biostatistics, 2Department of Reproductive Medicine and 3Department of Obstetrics and Gynaecology, Academic Medical Centre University of Amsterdam, Amsterdam, The Netherlands 4To whom correspondence should be addressed(More)
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