Nuchal translucency (NT) refers to the fluid accumulation at the back of a baby's neck during early pregnancy. This is a normal part of foetal development and can be observed through an ultrasound scan. However, reasons for high nuchal translucency may indicate potential health concerns such as chromosomal abnormalities or structural defects. While many babies with increased NT develop normally, further diagnostic tests are often recommended for a clearer assessment.
Why is NT measured?
During pregnancy, NT is measured as part of the combined screening test, which evaluates the risk of chromosomal conditions such as Down , Edwards, and Patau syndrome. This screening combines the NT measurement with a maternal blood test to assess overall risk. If the NT is 3.5mm or more, additional testing may be suggested to determine whether there is an underlying condition.
What are the causes of high nuchal translucency?
Some of the main causes of increased nuchal translucency are:
- Genetic syndromes such as Noonan syndrome.
- Structural defects like congenital heart defects, diaphragmatic hernia, and exomphalos.
- Skeletal and neuromuscular disorders.
- Microdeletion syndromes.
While these conditions are associated with increased NT, many babies with a high NT measurement have no identifiable problems. Therefore, additional testing is required for an accurate diagnosis.
Conclusion
Many babies with high NT levels develop normally, while others may require further evaluation to determine any underlying issues.
As you navigate this crucial time, maternity insurance can be an essential safety net. It provides financial security for a wide range of pregnancy-related medical expenses, including prenatal tests, doctor visits, hospital stays, and even complications that may arise during labour.
Disclaimer: The information provided in this blog is for educational and informational purposes only. It is not intended as a substitute for professional advice, diagnosis, or treatment. Please consult your general physician or another certified medical professional for any questions regarding a medical condition. Relying on any information provided in this blog is solely at your own risk, and ICICI Lombard is not responsible for any effects or consequences resulting from the use of the information shared.