Cardiology · NEET PG Preparation Medicine
A 68-year-old man presents with syncopal episodes. On examination, he has a delayed and weak carotid upstroke (pulsus parvus et tardus) and a harsh s…
Practice question from Cardiology (NEET PG Preparation Medicine), with the correct answer and a step-by-step solution.
easy · MCQ · Q-CCE911
A 68-year-old man presents with syncopal episodes. On examination, he has a delayed and weak carotid upstroke (pulsus parvus et tardus) and a harsh systolic ejection murmur heard best at the right second intercostal space radiating to the carotids. Which of the following echocardiographic findings defines severe high-gradient aortic stenosis?
- A.Aortic valve area > 1.5 cm2, mean gradient < 20 mmHg
- B.Aortic valve area < 1.0 cm2, mean gradient >= 40 mmHg, peak velocity >= 4.0 m/sCorrect answer
- C.Aortic valve area 1.0 - 1.5 cm2, mean gradient 20-39 mmHg
- D.Aortic valve area < 1.0 cm2, mean gradient < 40 mmHg with reduced ejection fraction
Solution
Severe high-gradient aortic stenosis is defined by an aortic valve area < 1.0 cm2 (or indexed area < 0.6 cm2/m2), a mean transvalvular pressure gradient >= 40 mmHg, and a peak aortic jet velocity >= 4.0 m/s.
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