14Jun 2023
The clinical impact of the first‐trimester nuchal translucency between the 95th–99th percentiles

The clinical impact of the first‐trimester nuchal translucency between the 95th–99th percentiles

This study aimed to evaluate the clinical significance of nuchal translucency (NT) between the 95th–99th percentile regarding typical and atypical chromosomal abnormalities (ACAs), associated fetal congenital disabilities and postnatal outcomes. A total of 306 cases of fetuses with an NT between the 95th–99th percentiles were included. The overall rate of genetic abnormalities was 12.1% (37/306). Chromosomal abnormalities were found in 10.1% (31/306) of cases, and 2% were ACA (6/306). The presence of an NT between the 95th–99th percentiles carries a 10‐fold increased risk of fetal defects, representing an indication for referral for a detailed fetal anatomy evaluation. The risk of ACA is mainly related to the presence of fetal defects, irrespective of the combined test risk.

  • #gynaecology - ivf

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