Ventricular Septal Defect (VSD) in Pregnancy: Causes and Treatments

A Ventricular Septal Defect (VSD) is one of the most common congenital heart conditions seen in unborn babies. It refers to a hole in the wall (septum) that separates the two lower chambers of the heart (ventricles). This opening allows blood to mix between the chambers, which can affect how efficiently the heart functions. While the diagnosis may sound alarming to expecting parents, many VSDs are small, harmless, and may even close on their own before or after birth.

What Causes VSD?


The exact cause of a VSD is often unknown, but it usually occurs during early fetal development. Some contributing factors may include:


  • Genetic conditions such as Down syndrome

  • Maternal illnesses during pregnancy (e.g., diabetes, infections)

  • Exposure to harmful substances (certain medications, alcohol, smoking)

  • Family history of congenital heart defects

VSDs can range in size and severity. Some are small and require no intervention, while larger defects may lead to symptoms like breathing difficulty, poor growth, or heart failure after birth.


How is VSD Detected During Pregnancy?


VSD is usually detected during a routine fetal anomaly scan around 18–22 weeks of pregnancy. If a heart abnormality is suspected, a fetal echocardiography is performed for a detailed view of the baby’s heart structure and blood flow.


At a reputed fetal medicine clinic in Kolkata, like Fetomat Wellness, such cases are carefully monitored by specialists who use advanced ultrasound technologies to confirm the diagnosis and guide further management.


Treatment and Management

Management depends on the size of the VSD and the presence of any other abnormalities. Small VSDs may not require any treatment and are monitored over time. Larger defects, or those causing symptoms, may require:


  • Regular monitoring during pregnancy

  • Planning for delivery in a hospital with neonatal cardiac care

  • Surgical repair after birth, if needed

Parents are also provided counselling to understand the condition, possible outcomes, and available treatment options.


Trust Fetomat Wellness for Expert Care


At Fetomat Wellness, our team of fetal medicine specialists provides compassionate and comprehensive care for congenital heart conditions like VSD. From diagnosis to delivery planning, we ensure both mother and baby receive the highest standard of care.


If you’re looking for expert guidance during your pregnancy, trust Fetomat Wellness, a leading fetal medicine clinic in Kolkata, dedicated to safeguarding your baby’s heart health from the very beginning.


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