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A Prospective Cohort Study on Association of First-Trimester Serum Biomarkers and Risk of Isolated Foetal Congenital Heart Defects Publisher Pubmed



Hematian MN1 ; Hessami K2 ; Torabi S3 ; Saleh M3 ; Nouri B4 ; Saleh M3
Authors

Source: Biomarkers Published:2021


Abstract

Background: This study aims to assess the association between first-trimester biomarkers in foetuses with a non-chromosomal congenital heart defect (CHD) and compares it to the matched healthy foetuses. Method: Nuchal Translucency (NT), Pregnancy-Associated Plasma Protein-A (PAPP-A) and free beta-human Chorionic Gonadotropin (β-hCG) were evaluated in 56 isolated foetal heart defects and 224 controls. The CHDs were further divided into Critical CHD (C-CHD) and Non-critical CHD (N-CHD) groups. Results: The multiple of the median (MoM) values for PAPP-A were significantly lower (0.87 MoM vs. 0.92 MoM; p = 0.008) in the total CHD group than in controls. The median of foetal NT values was significantly higher in the total CHDs than in controls (1.16 MoM vs. 1.03 MoM; p < 0.001), especially for C-CHDs (1.28 MoM; P < 0.001). There were no significant differences in terms of PAPP-A (p = 0.779) and foetal NT values (p = 0.760) between the N-CHDs and control groups. There were no significant differences within the groups based on free β-hCG, except for a lower β-hCG in C-CHD group than in the control group (0.95 MoM vs. 1.11 MoM; p = 0.022). Conclusion: Lower PAPP-A levels and increased NT thickness were associated with an increased risk of CHDs, especially the critical type of CHDs.Clinical significance Maternal serum PAPP-A, measured in the first trimester, is significantly lower in CHD. Foetal NT is significantly thicker in foetuses with CHD, especially those with critical CHD. Maternal serum β-hCG was only decreased among critical CHD group. © 2021 Informa UK Limited, trading as Taylor & Francis Group.
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