Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2018 Apr 25:9:193.
doi: 10.3389/fendo.2018.00193. eCollection 2018.

Follicle Size on Day of Trigger Most Likely to Yield a Mature Oocyte

Ali Abbara  1 , Lan N Vuong  2   3 , Vu N A Ho  3 , Sophie A Clarke  1 , Lisa Jeffers  1 , Alexander N Comninos  1 , Rehan Salim  4 , Tuong M Ho  3 , Tom W Kelsey  5 , Geoffrey H Trew  4 , Peter Humaidan  6 , Waljit S Dhillo  1
Affiliations

Follicle Size on Day of Trigger Most Likely to Yield a Mature Oocyte

Ali Abbara et al. Front Endocrinol (Lausanne). .

Abstract

Objective: To identify follicle sizes on the day of trigger most likely to yield a mature oocyte following hCG, GnRH agonist (GnRHa), or kisspeptin during IVF treatment.

Design: Retrospective analysis to determine the size of follicles on day of trigger contributing most to the number of mature oocytes retrieved using generalized linear regression and random forest models applied to data from IVF cycles (2014-2017) in which either hCG, GnRHa, or kisspeptin trigger was used.

Setting: HCG and GnRHa data were collected at My Duc Hospital, Ho Chi Minh City, Vietnam, and kisspeptin data were collected at Hammersmith Hospital, London, UK.

Patients: Four hundred and forty nine women aged 18-38 years with antral follicle counts 4-87 were triggered with hCG (n = 161), GnRHa (n = 165), or kisspeptin (n = 173).

Main outcome measure: Follicle sizes on the day of trigger most likely to yield a mature oocyte.

Results: Follicles 12-19 mm on the day of trigger contributed the most to the number of oocytes and mature oocytes retrieved. Comparing the tertile of patients with the highest proportion of follicles on the day of trigger 12-19 mm, with the tertile of patients with the lowest proportion within this size range, revealed increases of 4.7 mature oocytes for hCG (P < 0.0001) and 4.9 mature oocytes for GnRHa triggering (P < 0.01). Using simulated follicle size profiles of patients with 20 follicles on the day of trigger, our model predicts that the number of oocytes retrieved would increase from a mean 9.8 (95% prediction limit 9.3-10.3) to 14.8 (95% prediction limit 13.3-16.3) oocytes due to the difference in follicle size profile alone.

Conclusion: Follicles 12-19 mm on the morning of trigger administration were most likely to yield a mature oocyte following hCG, GnRHa, or kisspeptin.

Keywords: IVF treatment; follicle size; kisspeptin; mature oocyte; trigger.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Scattergram (median and interquartile range) of the number of oocytes (A), mature oocytes (B), and zygotes (C) by the proportion of follicles on the day of trigger within the size range 12–19 mm in patients triggered with either hCG or GnRH agonist. Groups are compared by the Kruskal–Wallis test with post hoc Dunn’s correction for multiple comparisons (*P < 0.05 and ****P < 0.0001).
Figure 2
Figure 2
Scattergram (median and interquartile range) of serum progesterone (nmol/l) just prior to trigger administration by the number of follicles >19 mm on the day of kisspeptin trigger administration.
See this image and copyright information in PMC

References

    1. Revelli A, Martiny G, Delle Piane L, Benedetto C, Rinaudo P, Tur-Kaspa I. A critical review of bi-dimensional and three-dimensional ultrasound techniques to monitor follicle growth: do they help improving IVF outcome? Reprod Biol Endocrinol (2014) 12:107. 10.1186/1477-7827-12-107 - DOI - PMC - PubMed
    1. Ectors FJ, Vanderzwalmen P, Van Hoeck J, Nijs M, Verhaegen G, Delvigne A, et al. Relationship of human follicular diameter with oocyte fertilization and development after in-vitro fertilization or intracytoplasmic sperm injection. Hum Reprod (1997) 12(9):2002–5. 10.1093/humrep/12.9.2002 - DOI - PubMed
    1. Hu X, Luo Y, Huang K, Li Y, Xu Y, Zhou C, et al. New perspectives on criteria for the determination of HCG trigger timing in GnRH antagonist cycles. Medicine (Baltimore) (2016) 95(20):e3691. 10.1097/MD.0000000000003691 - DOI - PMC - PubMed
    1. Shapiro BS, Daneshmand ST, Garner FC, Aguirre M, Ross R. Comparison of human chorionic gonadotropin and gonadotropin-releasing hormone agonist for final oocyte maturation in oocyte donor cycles. Fertil Steril (2007) 88(1):237–9. 10.1016/j.fertnstert.2006.11.069 - DOI - PubMed
    1. Shapiro BS, Daneshmand ST, Restrepo H, Garner FC, Aguirre M, Hudson C, et al. Efficacy of induced luteinizing hormone surge after “trigger” with gonadotropin-releasing hormone agonist. Fertil Steril (2011) 95(2):826–8. 10.1016/j.fertnstert.2010.09.009 - DOI - PubMed