Right atrial enlargement

Right atrial enlargement is a form of cardiomegaly. It can broadly be classified as either right atrial hypertrophy (RAH) or dilation. Common causes include right ventricular failure, pulmonary hypertension, tricuspid regurgitation, tricuspid stenosis and atrial septal defect.[1] It is characterized by a P wave height greater than 2.5 mm.[2]

Right atrial enlargement
Right atrial enlargement (P pulmonale)

References
  1. "Size of the right atrium and associated structures". 123 sonography.com. Medical University of Vienna. 2012-08-20. Retrieved 13 December 2016.
  2. Frank G Yanowitz MD. "Right Atrial Enlargement". ecg learning center. Eccles Health Sciences Library University of Utah. Retrieved 13 December 2016.


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