This is Dr Rachna Gupta, Fetal Medicine Specialist in Sonepat, Haryana, India. I have started writing blog to discuss about prenatal screening.
The couples/families who visit us usually ask after the scan if everything is normal or if it can be made sure that unborn child is perfectly normal. We need to understand that there are limitations of the prenatal tests in defining health the way we define it. Medically, health is defined as being free from physical or mental illness or injury. Most of the kids who are born are free from physical or mental illness and are so called healthy. Still, India has huge burden of genetic / chromosomal / congenital diseases (26.7 million live births per year):
|All chromosomal disorders||1:200||133,500|
|B-thalassemia + Sickle Cell Disease||1:2700||14,000|
|Duchenne’s Muscular Dystrophy||1:5000 (M)||2,700|
|Spinal Muscular Atrophy||1:10000||2,700|
|All single gene disorders||1:100||267,000|
We’ll discuss in upcoming blogs how much we can identify on prenatal scans and tests and how much we actually need to identify.