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DOI: 10.1007/s10815-022-02559-0

Development of children born after in vitro maturation with a prematuration step versus natural conception: a prospective cohort study

1HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam.

2Department of Pediatrics, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.

3HOPE Research Center, My Duc Hospital, Ho Chi Minh City, Vietnam. lanvuong@ump.edu.vn.

4Department of Obstetrics and Gynecology, University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hong Bang Street, District 5, Ho Chi Minh City, Vietnam. lanvuong@ump.edu.vn.

Abstract

Purpose: IVM preceded by a prematuration step (capacitation [CAPA]-IVM) improves the acquisition of oocyte developmental competence and can enhance embryo quality. There is currently no follow-up data on babies born from CAPA-IVM. This study investigated developmental outcomes in children born after CAPA-IVM versus natural conception.

Methods: This prospective cohort study was conducted at a fertility clinic in Vietnam in August/September 2019. Children born after CAPA-IVM were propensity score-matched with those born after natural conception. All parents were asked to complete the Developmental Red Flags and Ages & Stages Third Edition (ASQ-3) questionnaires.

Results: A total of 46 parents (23 in each group) of 55 babies (31 CAPA-IVM and 24 natural conception) were included in the study. Baseline characteristics, including mother's age and body mass index, gestational age at delivery, and birth weight, were comparable. The mean age of children at the end of follow-up was 15 months. The overall proportion of children with any abnormal ASQ-3 score was 6.5% in the CAPA-IVM group and 20.8% in the natural conception group (p = 0.24). The proportion of children with a developmental red flag did not differ significantly between the CAPA-IVM and natural conception groups (9.7% vs. 4.2%; p = 0.80).

Conclusions: The use of CAPA-IVM did not have any significant impact on childhood physical and mental development compared with children born as a result of natural conception.

KEYWORDS:

ASQ-3; Capacitation; Childhood development; In vitro fertilization; In vitro maturation; Red Flag sign.

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