Birthweight of Singletons Born After Blastocyst-stage or Cleavage-stage Transfer: Analysis of a Data Set from Three Randomized Controlled Trials

Overview

Journal J Assist Reprod Genet

Publisher Springer

Specialties Genetics
Reproductive Medicine

Date 2019 Dec 15

PMID 31836942

Citations 3

Authors

Anick De Vos

Samuel Dos Santos-Ribeiro

Herman Tournaye

Greta Verheyen

Affiliations

Soon will be listed here.

Abstract

Purpose: The present post hoc analysis aims to study the neonatal data of singletons born from three randomized controlled trials (RCTs) which compared the outcome of day 3 and day 5 transfers.

Methods: Our analysis included 208 liveborn singletons from three existing RCTs (publication dates 2004, 2005, and 2006), 93 children from cleavage-stage transfers and 115 from blastocyst-stage transfers. Vanishing twins were excluded from the analysis. Singleton birthweight was the primary outcome measure. Gestational age and gender of the newborn were accounted for in the multiple regression analysis, along with other confounding factors, such as maternal age, BMI, parity, and smoking behavior.

Results: There was no significant difference in gestational age (median, interquartile range) between cleavage-stage transfer (275 days; 267-281) and blastocyst-stage transfer (277 days; 270-281; p = 0.22). Singleton birthweight (median, interquartile range) was not significantly different between cleavage-stage transfer (3330 g; 3020-3610) and blastocyst-stage transfer (3236 g; 2930-3630; p = 0.40), even following multivariable regression analysis to control for potential maternal and newborn confounders.

Conclusion: The gestational age and birthweight were not significantly different after cleavage-stage and blastocyst-stage transfers. One limitation to be recognized is the age of the data, with original data collection dates from 2001 to 2004. Additionally, the RCTs used for the present analysis have a fairly young age restriction.

Citing Articles

Cumulative live birth rate of a blastocyst versus cleavage stage embryo transfer policy during in vitro fertilisation in women with a good prognosis: multicentre randomised controlled trial.

Cornelisse S, Fleischer K, van der Westerlaken L, de Bruin J, Vergouw C, Koks C BMJ. 2024; 386:e080133.

PMID: 39284610 PMC: 11403767. DOI: 10.1136/bmj-2024-080133.

Congenital anomaly and perinatal outcome following blastocyst- vs cleavage-stage embryo transfer: systematic review and network meta-analysis.

Siristatidis C, Papapanou M, Karageorgiou V, Martins W, Bellos I, Teixeira D Ultrasound Obstet Gynecol. 2022; 61(1):12-25.

PMID: 35751886 PMC: 10107888. DOI: 10.1002/uog.26019.

Blastocyst versus cleavage transfers: who benefits?.

Dirican E, Olgan S, Sakinci M, Caglar M Arch Gynecol Obstet. 2021; 305(3):749-756.

PMID: 34487220 DOI: 10.1007/s00404-021-06224-2.

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