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What are the investigation finding in aortic regurgitation

The main modalities of investigations in AR are ECG, chest X-ray, echocardiogram and cardiac catheterisation.
ECG findings in AR
1.    ECG – will show evidence of left ventricular hypertrophy (LVH)
2.    There will be diastolic overload pattern – that is prominent and tall T wave in lateral leads
3.    Increased chance of intraventricular conduction disturbance.
Chest X-ray in aortic regurgitation
1.    CXR reveal cardiomegaly
2.    Dilated – aorta
3.    Calcification of aortic valve or root.
Echocardiography in aortic regurgitation
1.  There is dilated left ventricle
2.  Regurgitant aortic valve can be seen.
3.  There is fluttering of anterior mitral leaflet.
Indication of cardiac catheterisation on AR
          It is routinely done in all patients with aortic regurgitation.