- female
- 5 Years
- 14/08/2025
My baby has a subaortic VSD of 2.5 mm and I'm really worried - can this close on its own or will they need open heart surgery? Are there any other treatment options we should consider?

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View allMy 1-month-old baby boy was diagnosed with a malaligned PM VSD hole measuring 3.5 mm. Is this considered large in medical terms? I'm trying to understand how VSD sizes are classified like small, moderate, large, or very large based on the mm measurement. Also, will my son definitely need open heart surgery, or is there a chance it could close on its own over time? If surgery is necessary, are there any less invasive options than open heart surgery?
A 3.5 mm VSD is usually small and may close on its own. Most small VSDs don’t need surgery. Serial echocardiograms are important to monitor.
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Answered by 1 Apollo Doctors
My 98-day-old baby girl had a 3.2mm PDA heart hole and got treated without open surgery. Will this cause any health issues for her in the future?
Primary surgical closure of PDA exceeding 2.0 mm in infants weighing less than 1,500 g should be considered to reduce mortality and long-term morbidity events including BPD.
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My newborn baby was born at 34 weeks and has a 5mm VSD. She only weighs 900g right now. Will the hole close on its own as she grows or will she need surgery? If surgery is needed, what's a rough estimate of the cost?
cardiologist opinion is advised.
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Answered by 1 Apollo Doctors
Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.




