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.