Hello,
Health conditions most commonly associated with the enlargement of the left atrium include
high blood pressure, atrial
fibrillation, mitral
valve dysfunction, and left ventricle problems.
These conditions can produce elevated left atrial pressures, elevated left atrial volume, or both—leading to Left atrial enlargement.
The lungs are fine so chest X-ray is normal. Pumping of the heart is compromised though it is not that bad (40 percent).
Usual symptoms of DCM can happen at any age and may include:
Shortness of breath.
Swelling of your legs, fatigue, weight gain, fainting. Palpitations (fluttering in the chest due to abnormal heart rhythms), Dizziness or
lightheadedness.
Blood clots in the dilated left ventricle because of the pooling of the blood. Please share the symptomatology of your son in detail.
There is no specific therapy other than controlling blood pressure and other cardiac conditions.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr AJEET SINGH, General & Family Physician