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Abortion due to congenital anomaly
I recently had an abortion due to tetrology of fallot diagnosed in fetus at 19 weeks. Please suggest whether the same problem will be repeated or not in subsequent pregnancy. My husband and I do not have any family history of cardiac problems. Request your urgent advice and please do not reply asking to connect for consultation.
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The recurrence of TOF in subsequent pregnancy with or without a family history is low, it is about 3-5 %. But, this is higher than the chances in the general population without a history of previous pregnancy with TOF (0.8%).
For prevention: If there is diabetes in the mother the blood sugars should be well controlled prior to conception (HbA1C < 6.5%). Must avoid alcohol and smoking. Some medicines taken for epilepsy (fits) can cause heart problems in the baby, if those are taken then they will be changed to safer ones before pregnancy is planned.
Next Steps
In your next pregnancy, it is better to get scans done by fetal medicine specialists to rule out any congenital problems.
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