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Clinical parameters of ovarian hyperstimulation syndrome (OHSS) following different triggers of oocyte maturation in IVF treatment

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Author(s)

A. Abbara, R. Islam, S. A. Clarke, L. Jeffers, G. Christopoulos, A. N. Comninos, R. Salim, S. A. Lavery, T.N.L. Vuong, P. Humaidan, T. W. Kelsey, G.H. Trew, W.S. Dhillo

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Abstract

Objective. Ovarian hyperstimulation syndrome (OHSS) is a serious iatrogenic condition, predominantly related to the hormone used to induce oocyte maturation during IVF treatment. Kisspeptin is a hypothalamic neuropeptide that has recently been demonstrated to safely trigger final oocyte maturation during IVF treatment even in women at high risk of OHSS. However to date, the safety of kisspeptin has not been compared to current hormonal triggers of oocyte maturation.

Design.  We conducted a retrospective single-centre cohort study investigating symptoms and clinical parameters of early OHSS in women at high risk of OHSS (antral follicle count or total number of follicles on day of trigger ≥23) triggered with hCG (n=40), GnRH agonist (GnRHa; n=99), or kisspeptin (n=122) at Hammersmith Hospital IVF unit, London, UK (2013-2016).

Results.  Clinical Parameters of OHSS: Median ovarian volume was larger following hCG (138mls) than GnRHa (73mls; P<0.0001), and in turn kisspeptin (44mls; P<0.0001). Median ovarian volume remained enlarged 20-fold following hCG, 8-fold following GnRHa and 5-fold following kisspeptin compared to pre-stimulation ovarian volumes. Mean (±SD) ascitic volumes were lesser following GnRHa (9±44mls) and kisspeptin (5±8mls) than hCG (62±84mls; p<0.0001). Symptoms of OHSS were most frequent following hCG and least frequent following kisspeptin. Diagnosis of OHSS: The odds ratio for OHSS diagnosis was 33·6 (CI 12·6-89·5) following hCG and 3·6 (CI 1·8-7·1) following GnRHa, when compared to kisspeptin.

Conclusion.  Triggering oocyte maturation by inducing endogenous gonadotropin release is preferable to the use of exogenous hCG in women at high risk of OHSS.
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Original languageEnglish
Pages (from-to)920-927
Number of pages8
JournalClinical Endocrinology
Volume88
Issue number6
Early online date6 Mar 2018
DOIs
Publication statusPublished - Jun 2018

    Research areas

  • GnRH agonist, hCG, IVF, Kisspeptin, Ovarian Hyperstimulation Syndrome

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