W Ombelet

Summary

Country: Belgium

Publications

  1. ncbi request reprint Obstetric and perinatal outcome of 1655 ICSI and 3974 IVF singleton and 1102 ICSI and 2901 IVF twin births: a comparative analysis
    Willem Ombelet
    Scientific Board of the Flemish Society of Obstetrics and Gynecology, Belgium
    Reprod Biomed Online 11:76-85. 2005
  2. ncbi request reprint Perinatal outcome of ICSI pregnancies compared with a matched group of natural conception pregnancies in Flanders (Belgium): a cohort study
    Willem Ombelet
    Genk Institute for Fertility Technology, Department of Obstetrics and Gynaecology, Genk, Belgium
    Reprod Biomed Online 11:244-53. 2005
  3. ncbi request reprint Undescended ovary and unicornuate uterus: simplified diagnosis by the use of clomiphene citrate ovarian stimulation and magnetic resonance imaging (MRI)
    W Ombelet
    Department of Obstetrics and Gynecology, Ziekenhuizen Oost Limburg, Schiepse Bos 6, 3600 Genk, Belgium
    Hum Reprod 18:858-62. 2003
  4. ncbi request reprint Intrauterine pregnancy following transperitoneal oocyte and/or sperm migration in a woman with an ectopic (undescended) ovary
    Willem Ombelet
    Department of Obstetrics and Gynecology, Ziekenhuizen Oost Limburg, Schiepse Bos 6, 3600 Genk, Belgium
    Reprod Biomed Online 7:110-3. 2003
  5. ncbi request reprint Semen quality and intrauterine insemination
    Willem Ombelet
    Genk Institute for Fertility Technology, Schiepse Bos 6, 3600 Genk, Belgium
    Reprod Biomed Online 7:485-92. 2003
  6. ncbi request reprint Multiple gestation and infertility treatment: registration, reflection and reaction--the Belgian project
    Willem Ombelet
    Genk Institute for Fertility Technology, Department of Obstetrics and Gynaecology, Genk, Belgium
    Hum Reprod Update 11:3-14. 2005
  7. ncbi request reprint Perinatal outcome of 12,021 singleton and 3108 twin births after non-IVF-assisted reproduction: a cohort study
    Willem Ombelet
    Scientific Board of the Flemish Society of Obstetrics and Gynaecology, St Niklaas, Brussels
    Hum Reprod 21:1025-32. 2006
  8. doi request reprint Correlation between male age, WHO sperm parameters, DNA fragmentation, chromatin packaging and outcome in assisted reproduction technology
    M Nijs
    Genk Institute for Fertility Technology, Ziekenhuis Oost Limburg, Genk, Belgium
    Andrologia 43:174-9. 2011
  9. doi request reprint Relationship between hyaluronic acid binding assay and outcome in ART: a pilot study
    Martine Nijs
    Genk Institute for Fertility Technology, Ziekenhuis Oost Limburg, Genk, Belgium
    Andrologia 42:291-6. 2010
  10. doi request reprint Cryopreservation of human sperm: efficacy and use of a new nitrogen-free controlled rate freezer versus liquid nitrogen vapour freezing
    E Creemers
    Genk Institute for Fertility Technology, Ziekenhuis Oost Limburg, Belgium
    Andrologia 43:392-7. 2011

Collaborators

Detail Information

Publications26

  1. ncbi request reprint Obstetric and perinatal outcome of 1655 ICSI and 3974 IVF singleton and 1102 ICSI and 2901 IVF twin births: a comparative analysis
    Willem Ombelet
    Scientific Board of the Flemish Society of Obstetrics and Gynecology, Belgium
    Reprod Biomed Online 11:76-85. 2005
    ..6 versus 7.9%, OR = 0.79, CI = 0.65-0.98, P = 0.03). This large case-comparative retrospective analysis showed that the obstetric outcome and perinatal health of IVF and ICSI pregnancies is comparable...
  2. ncbi request reprint Perinatal outcome of ICSI pregnancies compared with a matched group of natural conception pregnancies in Flanders (Belgium): a cohort study
    Willem Ombelet
    Genk Institute for Fertility Technology, Department of Obstetrics and Gynaecology, Genk, Belgium
    Reprod Biomed Online 11:244-53. 2005
    ..After excluding like-sex twin pairs, ICSI twins were at increased risk for prematurity, low birth weight and higher perinatal mortality compared with the natural conception comparison group...
  3. ncbi request reprint Undescended ovary and unicornuate uterus: simplified diagnosis by the use of clomiphene citrate ovarian stimulation and magnetic resonance imaging (MRI)
    W Ombelet
    Department of Obstetrics and Gynecology, Ziekenhuizen Oost Limburg, Schiepse Bos 6, 3600 Genk, Belgium
    Hum Reprod 18:858-62. 2003
    ..Consequently, important clinical information is missed in many patients worldwide...
  4. ncbi request reprint Intrauterine pregnancy following transperitoneal oocyte and/or sperm migration in a woman with an ectopic (undescended) ovary
    Willem Ombelet
    Department of Obstetrics and Gynecology, Ziekenhuizen Oost Limburg, Schiepse Bos 6, 3600 Genk, Belgium
    Reprod Biomed Online 7:110-3. 2003
    ..Surprisingly, and although the largest follicle in the normally located ovary reached a maximum diameter of only 12 mm on repetitive ultrasound monitoring, this patient became pregnant and gave birth to a healthy baby boy...
  5. ncbi request reprint Semen quality and intrauterine insemination
    Willem Ombelet
    Genk Institute for Fertility Technology, Schiepse Bos 6, 3600 Genk, Belgium
    Reprod Biomed Online 7:485-92. 2003
    ..Whether supplementation of culture media with substances such as antioxidants and platelet activating factor may improve the results remains the subject of further research...
  6. ncbi request reprint Multiple gestation and infertility treatment: registration, reflection and reaction--the Belgian project
    Willem Ombelet
    Genk Institute for Fertility Technology, Department of Obstetrics and Gynaecology, Genk, Belgium
    Hum Reprod Update 11:3-14. 2005
    ....
  7. ncbi request reprint Perinatal outcome of 12,021 singleton and 3108 twin births after non-IVF-assisted reproduction: a cohort study
    Willem Ombelet
    Scientific Board of the Flemish Society of Obstetrics and Gynaecology, St Niklaas, Brussels
    Hum Reprod 21:1025-32. 2006
    ..In conclusion, COS/AI singleton and twin pregnancies are significantly disadvantaged compared to naturally conceived children...
  8. doi request reprint Correlation between male age, WHO sperm parameters, DNA fragmentation, chromatin packaging and outcome in assisted reproduction technology
    M Nijs
    Genk Institute for Fertility Technology, Ziekenhuis Oost Limburg, Genk, Belgium
    Andrologia 43:174-9. 2011
    ..Elevated male age, after correcting for female age, was not related to lower fertilisation rates or significant decreases in the chance for a healthy baby at home...
  9. doi request reprint Relationship between hyaluronic acid binding assay and outcome in ART: a pilot study
    Martine Nijs
    Genk Institute for Fertility Technology, Ziekenhuis Oost Limburg, Genk, Belgium
    Andrologia 42:291-6. 2010
    ..No threshold value for HBA and outcome in combo IVF/ICSI treatment could be established. The clinical value for HBA in addition to routine semen analysis for this patient population seems limited...
  10. doi request reprint Cryopreservation of human sperm: efficacy and use of a new nitrogen-free controlled rate freezer versus liquid nitrogen vapour freezing
    E Creemers
    Genk Institute for Fertility Technology, Ziekenhuis Oost Limburg, Belgium
    Andrologia 43:392-7. 2011
    ..This latter technique can thus be a very useful asset to the sperm cryopreservation laboratory...
  11. doi request reprint Doppler measurement of renal interlobar vein impedance index in uncomplicated and preeclamptic pregnancies
    W Gyselaers
    Department of Obstetrics and Gynaecology, Ziekenhuis Oost Limburg, Genk, Belgium
    Hypertens Pregnancy 28:23-33. 2009
    ..To define normal values of Renal interlobar vein impedance index (RIVI) throughout gestation, as a reference to RIVI in preeclampsia (PE)...
  12. ncbi request reprint Cryopreservation of human sperm
    M Nijs
    Genk Institute for Fertility Technology, ZOL, Schiepse Bos 6, 3600 Genk, Belgium
    Hum Fertil (Camb) 4:158-63. 2001
    ..Banking of human sperm has to be performed in a safe and controlled way and different guidelines are necessary to ensure that this is achieved...
  13. ncbi request reprint Endometrial ossification and infertility: the diagnostic value of different imaging techniques
    W Ombelet
    Department of Obstetrics and Gynecology, Ziekenhuizen Oost Limburg, Schiepse Bos 6, 3600 Genk, Belgium
    Abdom Imaging 28:893-6. 2003
    ..Transvaginal ultrasound and computed tomography clearly showed the endometrial pathology. After successful operative hysteroscopy with removal of the osseous tissue, the patient became pregnant spontaneously within 2 months...
  14. ncbi request reprint Hemangiopericytoma of the ovary
    G Verswijvel
    Dep Of Radiology, Ziekenhuis Oost Limburg, Campus St Jan, Genk, Belgium
    JBR-BTR 87:229-30. 2004
    ..Computed tomography and ultrasound revealed an aspecific lesion with round lesion with a smooth contour and intratumoral necrosis. To our knowledge, radiological features of hemangiopericytoma of the ovary have not been reported yet...
  15. ncbi request reprint The history of Belgian assisted reproduction technology cycle registration and control: a case study in reducing the incidence of multiple pregnancy
    D De Neubourg
    Department of Obstetrics and Gynaecology, LUFC, University Hospitals Leuven, Leuven, Belgium
    Hum Reprod 28:2709-19. 2013
    ..What is the effect of a legal limitation of the number of embryos that can be transferred in an assisted reproductive technology (ART) cycle on the multiple delivery rate?..
  16. doi request reprint Acoustic streaming cannot discriminate reliably between endometriomas and other types of adnexal lesion: a multicenter study of 633 adnexal masses
    C Van Holsbeke
    Department of Obstetrics and Gynaecology, University Hospitals Leuven, Belgium
    Ultrasound Obstet Gynecol 35:349-53. 2010
    ..To determine the ability of acoustic streaming to discriminate between endometriomas and other adnexal masses...
  17. ncbi request reprint Interlobar venous flow is different between left and right kidney in uncomplicated third trimester pregnancy
    W Gyselaers
    Department of Obstetrics and Gynaecology, Ziekenhuis Oost Limburg, Genk, Belgium
    Gynecol Obstet Invest 65:6-11. 2008
    ..To investigate Doppler flow patterns of renal interlobar veins (RIV) in left (L) and right (R) kidney in relation to gestational age and to intrarenal pyelocalyceal diameters (PCD)...
  18. ncbi request reprint Coming soon to your clinic: patient-friendly ART
    Guido Pennings
    Bioethics Institute Ghent, Ghent University, Blandijnberg 2, 9000 Gent, Belgium
    Hum Reprod 22:2075-9. 2007
    ..The inclusion of the four criteria in decision-making about treatment would express these values in clinical practice...
  19. ncbi request reprint Pregnancy after ICSI with ejaculated immotile spermatozoa from a patient with immotile cilia syndrome: a case report and review of the literature
    Karen Peeraer
    Genk Institute for Fertility Technology, Department of Obstetrics and Gynaecology, Ziekenhuis Oost Limburg, Schiepse Bos 6, 3600 Genk, Belgium
    Reprod Biomed Online 9:659-63. 2004
    ....
  20. ncbi request reprint Relative contribution of ovarian stimulation versus in vitro fertilization and intracytoplasmic sperm injection to multifetal pregnancies requiring reduction to twins
    Willem Ombelet
    Genk Institute for Fertility Technology, Department of Obstetrics and Gynaecology, Genk, Belgium
    Fertil Steril 88:997-9. 2007
    ..These reduced twin pregnancies may carry a higher perinatal risk compared with other twin pregnancies, which should be taken into account when assessing the perinatal outcome of twin pregnancies after assisted reproduction...
  21. ncbi request reprint Influence of the abstinence period on human sperm quality
    Christopher De Jonge
    Reproductive Medicine Center, University of Minnesota, Minneapolis, Minnesota, USA
    Fertil Steril 82:57-65. 2004
    ..To determine the influence of ejaculatory abstinence on within-subject semen parameters and DNA fragmentation...
  22. ncbi request reprint A novel approach for patients at risk for ovarian hyperstimulation syndrome: elective transfer of a single zona-free blastocyst on day 5
    Kristof Kinget
    Genk Institute for Fertility Technologies, ZOL, Schiepse Bos 6, B 3600 Genk, Belgium
    Reprod Biomed Online 4:51-5. 2002
    ....
  23. ncbi request reprint Ectopic ovary and unicornuate uterus
    Willem Ombelet
    N Engl J Med 348:667-8. 2003
  24. ncbi request reprint Affordable IVF for developing countries
    Willem Ombelet
    Genk Institute for Fertility Technology, Department of Obstetrics and Gynaecology, Genk, Belgium
    Reprod Biomed Online 15:257-65. 2007
    ..Special attention should be given to avoid adverse outcomes such as ovarian hyperstimulation and multiple embryo pregnancy...
  25. ncbi request reprint IUI and evidence-based medicine: an urgent need for translation into our clinical practice
    Willem Ombelet
    Gynecol Obstet Invest 59:1-2. 2005
  26. ncbi request reprint Survey on the future organisation of first-trimester ultrasound screening in Flanders, Belgium
    Wilfried Gyselaers
    Prenat Diagn 25:518-9. 2005