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A 74-year-old woman with known critical aortic stenosis presents to hospital with acute, severe dyspnoea.
The patient had presented 3 months earlier with dyspnoea on exertion. Critical calcific aortic stenosis was diagnosed on echocardiography with an aortic valve area of 0.44 cm2 and mean pressure gradient of 54 mm Hg (figure 1A). She was referred to a cardiac surgeon for aortic valve replacement, but was initially managed conservatively.
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