Adverse Maternal and Neonatal Outcomes of Preimplantation Genetic Testing with Trophectoderm Biopsy: a Retrospective Cohort Study of 3373 Intracytoplasmic Sperm Injection Single Frozen-thawed Blastocyst Transfer Cycles

Overview

Journal Arch Gynecol Obstet

Specialty Gynecology & Obstetrics

Date 2023 Jun 30

PMID 37389643

Authors

Ning Sun

Xingyu Fang

Yunyun Jiao

Yuan Wang

Ying Wan

Zhaoting Wu

Haixia Jin

Hao Shi

Wenyan Song

Affiliations

Soon will be listed here.

Abstract

Purpose: To investigate whether trophectoderm biopsy increases the risk of adverse maternal and neonatal outcomes in intracytoplasmic sperm injection (ICSI) single frozen-thawed blastocyst transfer cycles.

Methods: This respective cohort study enrolled 3373 ICSI single frozen-thawed blastocyst transfer cycles with and without trophectoderm biopsy. Statistical methods including univariate logistic regression analysis, multivariate logistic regression analysis, and stratified analyses were performed to explore the impact of trophectoderm biopsy on adverse maternal and neonatal outcomes.

Results: The rates of adverse maternal and neonatal outcomes were comparable between the two groups. Univariate analysis showed that the live birth rate (45.15% vs. 40.75%; P = 0.010) in the biopsied group was statistically higher than that in the unbiopsied group, and the rates of miscarriage (15.40% vs. 20.00%; P = 0.011) and birth defects (0.58% vs. 2.16%; P = 0.007) were statistically lower in the biopsied group. After adjusting for confounding factors, the rates of miscarriage (aOR = 0.74; 95% CI = 0.57-0.96; P = 0.022) and birth defects (aOR = 0.24, 95% CI = 0.08-0.70, P = 0.009) in the biopsied group were significantly lower than those in the unbiopsied group. Stratified analyses showed that the birth defects rate after biopsy was significantly reduced in the subgroups of age < 35 years old, BMI ≥ 24 kg/m, artificial cycle with downregulation, poor-quality blastocysts, and Day 5 poor-quality blastocysts.

Conclusion: Preimplantation genetic testing (PGT) with trophectoderm biopsy does not increase the risk of adverse maternal and neonatal outcomes in ICSI single frozen-thawed blastocyst transfer cycles, and PGT can effectively reduce the rates of miscarriage and birth defects.

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