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Archives of Gynecology and Obstetrics

, Volume 264, Issue 1, pp 29–32 | Cite as

Significant reduction of the incidence of ovarian hyperstimulation syndrome (OHSS) by using the LHRH antagonist Cetrorelix (Cetrotide®) in controlled ovarian stimulation for assisted reproduction

  • M. Ludwig
  • R. E. Felberbaum
  • P. Devroey
  • C. Albano
  • H. Riethmüller-Winzen
  • A. Schüler
  • W. Engel
  • K. Diedrich
Original Article

Abstract 

A prospective, randomized study was performed to compare the efficiency of hormonal stimulation for IVF (in vitro fertilization) in either the long luteal protocol, using the LHRH agonist Buserelin, or the multiple dose LHRH antagonist protocol, using the LHRH antagonist Cetrorelix. Here we present the data on the incidence of ovarian hyperstimulation syndromes (OHSS). 85 and 188 patients were recruited for the stimulation in the LHRH agonist and in the LHRH antagonist protocol, respectively. The groups were comparable regarding anamnestic data. The incidence of WHO °II and °III OHSS was significantly lower in the Cetrorelix than in the Buserelin group (1.1% vs. 6.5%, p=0.03). Additionally 3 patients in the Cetrorelix group (1.6%) and 5 patients in the Buserelin group (5.9%) did not receive hCG because of a threatening OHSS. The follicle maturation was more homogeneous in the Cetrorelix protocol, with less small follicles on the day of hCG administration but a similar number of oocyte cumulus complexes retrieved. The pregnancy rates per cycle were not significantly different in the Cetrorelix and Buserelin protocol (22% vs. 26%). The Cetrorelix multiple dose protocol is advantageous compared to the long protocol regarding the incidence of OHSS, a potentially life threatening complication of controlled ovarian stimulation.

Keywords LHRH antagonist Cetrorelix Ovarian hyperstimulation syndrome 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • M. Ludwig
    • 1
  • R. E. Felberbaum
    • 1
  • P. Devroey
    • 2
  • C. Albano
    • 2
  • H. Riethmüller-Winzen
    • 3
  • A. Schüler
    • 3
  • W. Engel
    • 3
  • K. Diedrich
    • 1
  1. 1.Klinik für Frauenheilkunde und Geburtshilfe, Medizinische Universität Lübeck, Ratzeburger Allee 160, D-23538 Lübeck e-mail: Ludwig_M@t-online.de Tel.: 0049-(0)451-500 2133/34, Fax: 0049-(0)451-5059 334
  2. 2.Center of Reproductive Medicine, Academisch Zieckenhuis, Vrije Universiteit Brussels
  3. 3.ASTA Medica AG, Frankfurt

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