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Serum Oestradiol Pattern during Coasting is Different in Antagonist Cycles Compared with Long Agonist Cycles in In Vitro Fertilisation

Year 2013, , 406 - 409, 01.04.2013
https://doi.org/10.5152/balkanmedj.2013.9028

Abstract

Background: GnRH agonists and antagonists have different mechanism of action, and therefore serum estradiol levels might differ during coasting in IVF. Aims: To compare the change in serum oestradiol levels after withholding the gonadotropins for coasting between long agonist and antagonist cycles. Study Design: Retrospective study. Methods: Antagonist and long agonist cycles, in which coasting was performed, were analysed in this retrospective analysis. Antagonist cycles (n=50) were compared with long agonist cycles (n=52) with respect to daily serum oestradiol levels following withholding of gonadotropins. Results: The pattern of change in serum oestradiol was different between groups; it increased on the first day by 11.2% and decreased thereafter on the second and third days in the agonist group. However, it began to decrease from the first day in the antagonist group. Therefore, peak serum oestradiol levels were significantly higher in the agonist group than in the antagonist group (mean±standard deviation; 5798±1748 vs 5104±1351 pg/mL). The duration of coasting was shorter in the antagonist group compared with that in the agonist group (mean±standard deviation; 2.60±1.40 vs 1.96±0.88 days). Conclusion: Serum oestradiol pattern during coasting is different in antagonist cycles compared with long agonist cycles in in vitro fertilisation. Turkish Başlık:Ovaryan Hiperstimulasyon Riski Yüksek Olgularda Gonadotropinlerin Kesilmesi (Coasting) Sonrası Serum Östradiol Düzeylerinin Seyri, Agonist ve Antagonist Sikluslarda Farklılıklar Göstermektedir Anahtar Kelimeler:Ovaryan hiperstimulasyon sendromu, GnRH antagonistleri, östradiol Arkaplan: GnRH antagonist ve agonistlerinin etki mekanizmaları farklıdır. Bu nedenle tüp bebek uygulamasında gonadotropinlerin kesilmesi (coasting) sonrası serum östradiol düzeyleri de farklılıklar gösterebilir. Amaç: Ovaryan hiperstimulasyon (OHSS) riski yüksek olgularda gonadotropinlerin kesilmesi (coasting) sonrası serum östradiol düzeylerini, agonist ve antagonist sikluslarda karşılaştırmak. Çalışma Tasarımı: Retrospektif çalışma Yöntemler: Bu retrospektif çalışmada, OHSS riskinden dolayı gonadotropinlerin kesildiği (coasting uygulanan) antagonist (n=50) ve uzun agonist siklusları (n=52) analiz edildi. Bu sikluslarda, serum östradiol düzeylerinin, gonadotropin stimulasyonunun kesilmesini takip eden günlerdeki değişimi karşılaştırıldı. Bulgular: Serum östradiol düzeylerinin seyri, iki grup arasında farklıydı; Serum östradiolün, agonist sikluslarda, ilk gün %11.2 arttığı ve sonrasında, ikinci ve üçüncü günlerde azaldığı, buna karşın, antagonist sikluslarda ilk günden itibaren başlayan bir azalmanın olduğu gözlendi. Dolayısıyla, serum östradiol seyrinin en yüksek noktası iki grup arasında anlamlı olarak farklıydı (ortalama ± SD; 5798±1748 ile 5104±1351 pg/mL). Coasting süresi antagonist grupta, agonist gruba göre daha kısa idi. (ortalama ± SD; 2.60±1.40 ile 1.96±0.88 gün). Sonuç: Coasting sonrası serum östradiol düzeylerinin seyri, agonist ve antagonist sikluslarda farklılıklar göstermektedir.

References

  • Elter K, Nelson LR. Use of third generation gonadotropin-releasing hormone antagonists in in vitro fertilization-embryo transfer:a review. Obstet Gynecol Surv 2001;56:576-88. [CrossRef] Diedrich K, Diedrich C, Santos E, Bauer O, Zoll C, al-Hasani S, et al. Suppression of endogenous LH increase in ovarian stimulation with the GnRH antagonist Cetrorelix. Geburtshilfe Frauenheilkd 1994;54:237-40. [CrossRef]
  • Porter RN, Smith W, Craft IL, Abdulwahid NA, Jacobs HS. Induction of ovulation for in-vitro fertilisation using buserelin and gonadotropins. Lancet 1984;2:1284-5. [CrossRef]

Serum Oestradiol Pattern during Coasting is Different in Antagonist Cycles Compared with Long Agonist Cycles in In Vitro Fertilisation

Year 2013, , 406 - 409, 01.04.2013
https://doi.org/10.5152/balkanmedj.2013.9028

Abstract

References

  • Elter K, Nelson LR. Use of third generation gonadotropin-releasing hormone antagonists in in vitro fertilization-embryo transfer:a review. Obstet Gynecol Surv 2001;56:576-88. [CrossRef] Diedrich K, Diedrich C, Santos E, Bauer O, Zoll C, al-Hasani S, et al. Suppression of endogenous LH increase in ovarian stimulation with the GnRH antagonist Cetrorelix. Geburtshilfe Frauenheilkd 1994;54:237-40. [CrossRef]
  • Porter RN, Smith W, Craft IL, Abdulwahid NA, Jacobs HS. Induction of ovulation for in-vitro fertilisation using buserelin and gonadotropins. Lancet 1984;2:1284-5. [CrossRef]
There are 2 citations in total.

Details

Primary Language English
Subjects Health Care Administration
Journal Section Articles
Authors

Koray Elter This is me

Tijen Alev Özay This is me

Elif Ergin This is me

Murat Hakan Özörnek This is me

Publication Date April 1, 2013
Published in Issue Year 2013

Cite

APA Elter, K., Özay, T. A., Ergin, E., Özörnek, M. H. (2013). Serum Oestradiol Pattern during Coasting is Different in Antagonist Cycles Compared with Long Agonist Cycles in In Vitro Fertilisation. Balkan Medical Journal, 2013(4), 406-409. https://doi.org/10.5152/balkanmedj.2013.9028
AMA Elter K, Özay TA, Ergin E, Özörnek MH. Serum Oestradiol Pattern during Coasting is Different in Antagonist Cycles Compared with Long Agonist Cycles in In Vitro Fertilisation. Balkan Medical Journal. April 2013;2013(4):406-409. doi:10.5152/balkanmedj.2013.9028
Chicago Elter, Koray, Tijen Alev Özay, Elif Ergin, and Murat Hakan Özörnek. “Serum Oestradiol Pattern During Coasting Is Different in Antagonist Cycles Compared With Long Agonist Cycles in In Vitro Fertilisation”. Balkan Medical Journal 2013, no. 4 (April 2013): 406-9. https://doi.org/10.5152/balkanmedj.2013.9028.
EndNote Elter K, Özay TA, Ergin E, Özörnek MH (April 1, 2013) Serum Oestradiol Pattern during Coasting is Different in Antagonist Cycles Compared with Long Agonist Cycles in In Vitro Fertilisation. Balkan Medical Journal 2013 4 406–409.
IEEE K. Elter, T. A. Özay, E. Ergin, and M. H. Özörnek, “Serum Oestradiol Pattern during Coasting is Different in Antagonist Cycles Compared with Long Agonist Cycles in In Vitro Fertilisation”, Balkan Medical Journal, vol. 2013, no. 4, pp. 406–409, 2013, doi: 10.5152/balkanmedj.2013.9028.
ISNAD Elter, Koray et al. “Serum Oestradiol Pattern During Coasting Is Different in Antagonist Cycles Compared With Long Agonist Cycles in In Vitro Fertilisation”. Balkan Medical Journal 2013/4 (April 2013), 406-409. https://doi.org/10.5152/balkanmedj.2013.9028.
JAMA Elter K, Özay TA, Ergin E, Özörnek MH. Serum Oestradiol Pattern during Coasting is Different in Antagonist Cycles Compared with Long Agonist Cycles in In Vitro Fertilisation. Balkan Medical Journal. 2013;2013:406–409.
MLA Elter, Koray et al. “Serum Oestradiol Pattern During Coasting Is Different in Antagonist Cycles Compared With Long Agonist Cycles in In Vitro Fertilisation”. Balkan Medical Journal, vol. 2013, no. 4, 2013, pp. 406-9, doi:10.5152/balkanmedj.2013.9028.
Vancouver Elter K, Özay TA, Ergin E, Özörnek MH. Serum Oestradiol Pattern during Coasting is Different in Antagonist Cycles Compared with Long Agonist Cycles in In Vitro Fertilisation. Balkan Medical Journal. 2013;2013(4):406-9.