Cardiology MCQ – Low gradient severe AS – Answer

Cardiology MCQ – Low gradient severe AS – Answer

Investigation to identify low flow low gradient severe aortic stenosis:

Correct answer: 2. Dobutamine echocardiography

Low flow low gradient severe aortic stenosis is due to falsely low gradient when there is left ventricular dysfunction. Dobutamine increases the contractility in this situation and increases the gradient.

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