Enlarged Atrium: Symptoms, Causes, and Treatments

Enlarged atrium refers to the condition in which the atrium (one of four chambers in the heart) has a larger size than normal. The condition is medically called atrial enlargement.

It could be congenital or acquired.


  • Chest pain.
  • Dizziness.
  • Fatigue.
  • Irregular heartbeats.
  • Loss of appetite.
  • Shortness of breath.
  • Swelling.
  • Note: sometimes there are no signs even though the atrium is enlarged.

Causes of acquired atrial enlargement:

  • Obesity.
  • Hypertension (high blood pressure).
  • Problems with the mitral valve.
  • Problems with the ventricle.


  • There is no specific treatment for atrial enlargement. The following methods just help ease it.
  • Depending on the cause, common methods include: medications, healthy diet, quitting alcohol and smoking, exercise, and surgery.


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* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.