NIPT ADVANCE (MICRODELETIONS):
The NIPT Advance (Microdeletions) test is a specialized form of non-invasive prenatal screening developed to provide a deeper evaluation of fetal genetic health by focusing on subtle chromosomal changes that are often missed in routine testing. This advanced screening method works by analyzing fragments of fetal DNA that circulate naturally in the mother’s bloodstream, allowing for early assessment without the need for invasive procedures. Unlike standard prenatal tests that mainly detect large chromosomal abnormalities, this approach is designed to identify small missing segments within specific regions of chromosomes, which may be linked to certain genetic syndromes affecting growth, development, and overall health.
By applying high-resolution genomic technology, the test offers a more refined analysis that enhances the ability to recognize these minute variations with improved clarity. It is typically recommended after the early weeks of pregnancy when sufficient fetal DNA is present, making it possible to gain meaningful insights at a stage when medical planning can still be effectively guided. The process is simple, requiring only a routine blood sample, yet it delivers valuable information that supports both clinicians and expectant parents in understanding potential risks with greater confidence.
What is the NIPT Advance (Microdeletions) test?
The NIPT Advance (Microdeletions) test is a refined prenatal screening method that focuses on identifying very small missing pieces of chromosomes in the fetal genome. Unlike standard NIPT panels that evaluate whole chromosome abnormalities, this test detects submicroscopic deletions that may not be visible in routine screenings. It works by analyzing fetal DNA fragments circulating in the mother’s bloodstream and applying high-resolution genomic techniques to identify specific regions where genetic material may be absent, thereby offering a deeper level of genetic screening.
What are microdeletions and why are they important?
Microdeletions are small segments of DNA that are missing from a chromosome, and even though they are tiny, they can have significant effects on development and health. These deletions may disrupt important genes, leading to conditions that affect growth, learning ability, or physical features. Detecting these changes early in pregnancy is important because it allows for better medical planning, early intervention strategies, and informed decision-making by parents and healthcare providers.
What is the cost of this test and what does it include?
The cost of the NIPT Advance (Microdeletions) test is ₹26,000, and it covers advanced non-invasive prenatal screening that analyzes fetal DNA from the mother’s blood to assess chromosomal abnormalities along with selected microdeletion syndromes. This test is designed to provide a more detailed genetic evaluation compared to basic screening, helping in the early identification of specific small chromosomal losses that may impact fetal development. The pricing typically includes sample collection, laboratory processing, and result interpretation, making it a comprehensive option for expectant parents seeking deeper genetic insights without undergoing invasive procedures.
Which conditions can be screened using this test?
This test is designed to screen for several well-known microdeletion syndromes, such as DiGeorge syndrome (22q11.2 deletion), 1p36 deletion syndrome, Angelman syndrome, Prader-Willi syndrome, and Cri-du-chat syndrome, among others. Each of these conditions is associated with specific genetic losses that can influence development in different ways. While the test focuses on selected regions, it provides valuable insight into conditions that are not typically covered in basic prenatal screening panels.
When is the best time to take this test?
The NIPT Advance test is usually recommended after 10 weeks of pregnancy, as this is when there is enough fetal DNA present in the maternal blood for reliable analysis. Taking the test early in pregnancy allows more time for understanding the results and planning further care if needed. However, it can also be performed later depending on medical advice or individual preference.
How accurate is the microdeletions screening?
The accuracy of microdeletion screening is generally high, but it may vary depending on the size and location of the deletion being analyzed. Larger and well-characterized deletions are more reliably detected compared to very small or rare ones. While the test offers valuable screening information, it is important to remember that it is not diagnostic, and any positive findings should be confirmed through further clinical testing.
Is the test safe for both mother and baby?
Yes, the test is completely safe because it is non-invasive and requires only a routine blood draw from the mother. There is no risk of miscarriage or harm to the fetus, which makes it a preferred choice for prenatal screening compared to invasive diagnostic procedures that involve sampling from the uterus.
Who should consider taking this test?
This test is suitable for pregnant women who want a more detailed genetic assessment beyond standard chromosomal screening. It is especially beneficial for those with a family history of genetic disorders, abnormal ultrasound findings, or increased concern about rare genetic conditions. Even in low-risk pregnancies, it can provide additional reassurance by expanding the scope of screening.
How is the sample collected?
The sample collection process is simple and quick, involving the collection of a small amount of blood from the mother’s arm. This blood contains fragments of fetal DNA, which are then extracted and analyzed in a specialized laboratory using advanced sequencing techniques. No special preparation is required before the test.
What do the test results mean?
The results are generally reported as low risk or high risk for the specific microdeletion syndromes being screened. A low-risk result suggests that the likelihood of the tested conditions is minimal, while a high-risk result indicates an increased probability that requires further evaluation. In some cases, results may be inconclusive, and repeat testing may be suggested.
What should be done if the result shows high risk?
If a high-risk result is identified, the next step usually involves confirmatory diagnostic testing such as amniocentesis or chorionic villus sampling. These tests analyze fetal cells directly and provide a definitive diagnosis. Genetic counseling is also recommended to help parents understand the implications and available options.
Can this test detect all genetic disorders?
No, this NIPT Advance (Microdeletions) test specifically focuses on selected microdeletion syndromes and does not detect all genetic or inherited conditions. Disorders caused by single gene mutations or very rare genetic variations may not be identified. Therefore, it should be considered as part of a broader prenatal care approach rather than a complete diagnostic tool.
Does maternal health affect the results?
Yes, certain maternal factors such as underlying medical conditions, genetic variations, or low fetal DNA levels can influence the accuracy of the test. These factors may affect the analysis and, in some cases, lead to inconclusive results. Healthcare providers take these aspects into account while interpreting the findings.
Can this test be performed in twin pregnancies?
The test can be performed in twin pregnancies, but interpretation may be more complex. While it can indicate the presence of a microdeletion, it may not always determine which fetus is affected. Additional diagnostic procedures may be recommended if any abnormality is suspected.
Is fasting required before taking this test?
No, there is no requirement for fasting or any special dietary restrictions before undergoing the test. The procedure is straightforward and can be done at any time of the day, making it convenient for expectant mothers.
How is this test different from standard NIPT?
The NIPT Advance (Microdeletions) test differs from standard NIPT primarily in the depth and scope of genetic analysis it provides. While traditional NIPT is designed to identify large-scale chromosomal abnormalities such as extra or missing entire chromosomes, this advanced version extends its focus to much smaller genetic changes that occur within particular chromosome segments. These subtle variations, known as microdeletions, are often too small to be detected through routine screening but can still have significant clinical relevance.
By targeting these specific regions, the test offers a more refined level of screening that complements the broader analysis of standard NIPT. Additionally, it employs high-resolution genomic techniques that allow for closer examination of selected areas within the DNA, thereby increasing the ability to identify conditions linked to these minor deletions. This expanded capability provides a more detailed genetic overview, helping bridge the gap between basic screening and more complex diagnostic procedures, while still maintaining the safety and convenience of a non-invasive approach.
Is genetic counseling recommended with this test?
Yes, genetic counseling is highly recommended both before and after the test. It helps patients understand what the test can and cannot detect, and it provides guidance on interpreting the results. Counseling becomes especially important if the test indicates a high-risk finding.
Why should someone choose NIPT Advance (Microdeletions)?
Choosing the NIPT Advance (Microdeletions) test allows expectant parents to access a more detailed level of prenatal screening that goes beyond routine chromosome evaluation. This test focuses on identifying very small missing segments within specific regions of the genome that are associated with clinically important syndromes, offering an added layer of insight during early pregnancy. It is particularly valuable for individuals who want a deeper understanding of potential genetic concerns that may not be visible through conventional screening methods.
The non-invasive nature of the test ensures that the process remains simple and risk-free, requiring only a standard blood sample from the mother while avoiding procedures that could pose complications. In addition, the use of advanced sequencing technology enhances the reliability of detecting targeted microdeletions, supporting clearer interpretation of results.
How long does it take to receive the results?
The results are typically available within 5 to 7 working days, depending on the laboratory workflow. This timeframe allows for detailed analysis of the targeted microdeletion regions while maintaining accuracy. The report is shared with the healthcare provider, who explains the findings to the patient.
Conclusion:
The NIPT Advance (Microdeletions) test provides a refined level of prenatal screening by focusing on subtle genetic changes that may have a meaningful impact on fetal development. By analyzing fetal DNA through a non-invasive approach, it allows early identification of specific microdeletion syndromes that are often not included in standard screening panels. This added layer of analysis supports a more informed understanding of potential genetic variations, enabling healthcare providers and families to plan the next steps with greater awareness. The simplicity of sample collection, combined with advanced genomic technology, ensures both comfort and dependable insights throughout the process. As prenatal care continues to move toward more comprehensive evaluation, this test serves as a valuable option for those who want a deeper and more detailed assessment of fetal genetic health.
