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    Pregnancy Complications

    Cardiac & Thyroid Conditions

    Specialist pregnancy management for women with heart disease or thyroid disorders.

    What is Cardiac & Thyroid Conditions?

    Cardiac conditions in pregnancy range from pre-existing heart disease (congenital or acquired) to pregnancy-related conditions like peripartum cardiomyopathy. Thyroid disorders — including hypothyroidism, hyperthyroidism, and Graves' disease — are among the most common endocrine conditions affecting pregnant women. Both require careful monitoring because pregnancy places significant additional demands on the heart and alters thyroid hormone requirements.

    Why is it a Concern?

    Unmanaged cardiac disease can lead to heart failure, arrhythmias, or maternal death during the haemodynamic stress of pregnancy and delivery. Uncontrolled thyroid disorders increase the risk of miscarriage, pre-eclampsia, preterm birth, fetal growth problems, and developmental concerns in the baby.

    Signs & Symptoms

    • Shortness of breath beyond normal pregnancy levels
    • Chest pain or palpitations
    • Persistent rapid heart rate
    • Significant fatigue or exercise intolerance
    • Unexplained weight changes
    • Heat or cold intolerance
    • Tremor, anxiety, or mood changes

    How It is Monitored

    Cardiac conditions require regular echocardiography, ECG monitoring, and coordination with cardiologists. Thyroid conditions are monitored with regular thyroid function tests, with medication adjustments throughout pregnancy as hormone requirements change. Delivery planning considers the specific cardiac or thyroid condition.

    Why See an MFM Specialist?

    MFM specialists are trained in the physiological changes of pregnancy that affect the heart and endocrine system. They coordinate with cardiologists and endocrinologists to manage complex cases, and they understand when these conditions require changes to delivery planning.

    Dr. Kartik Balaraman Manages This Condition

    Dr. Kartik manages pregnancies complicated by cardiac and thyroid conditions, coordinating with relevant specialists for comprehensive care. If you have a heart or thyroid condition, consult Dr. Kartik before or early in pregnancy.

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    Frequently Asked Questions

    Can I have a safe pregnancy with heart disease?

    Many women with heart disease have safe pregnancies with proper management. The risk depends on the type and severity of the cardiac condition. Pre-pregnancy counselling is strongly recommended.

    Do I need to adjust my thyroid medication during pregnancy?

    Yes, thyroid hormone requirements typically increase during pregnancy. Regular blood tests allow your doctor to adjust medication to keep levels in the optimal range for pregnancy.

    Will my baby be affected by my thyroid condition?

    Well-managed thyroid conditions generally do not affect the baby. However, uncontrolled thyroid disease — particularly in the first trimester — can impact fetal development, making early and consistent management important.

    How often will my thyroid be checked during pregnancy?

    Thyroid function is typically checked every 4–6 weeks during pregnancy, and medication doses are adjusted as needed. Requirements often increase in the first trimester.

    Can I deliver vaginally with heart disease?

    Many women with heart disease can deliver vaginally. The plan is tailored to the specific cardiac condition and made in consultation with a cardiologist.

    Reviewed by Dr. Kartik Balaraman, Consultant OBGYN & Maternal Fetal Medicine Sub-Specialist ·

    This page is for general education and does not replace personalised medical advice. If you have concerns about your pregnancy or health, consult a qualified specialist directly.