An aortic ejection sound heard during systole is most commonly associated with which conditions?

An aortic ejection sound heard during systole is most commonly associated with which conditions?

• A. A dilated aorta or aortic valve disease
• B. Mitral valve prolapse
• C. Pulmonic stenosis
• D. Tricuspid regurgitation

Answer: (A)

An aortic ejection sound is a brief, high-pitched sound that occurs as the aortic valve opens early in systole. It happens when the aortic outflow is abnormal—most commonly with dilation of the aorta or with aortic valve disease—so the valve opening produces an audible click or “ejection” sound as the blood rapidly flows through a structurally altered valve or enlarged root. The other options involve different valves or outflow tracts (mitral valve prolapse with a late systolic click, pulmonic stenosis, or tricuspid regurgitation) and do not produce the characteristic aortic ejection sound. Therefore, the association with a dilated aorta or aortic valve disease is most consistent.

An aortic ejection sound is a brief, high-pitched sound that occurs as the aortic valve opens early in systole. It happens when the aortic outflow is abnormal—most commonly with dilation of the aorta or with aortic valve disease—so the valve opening produces an audible click or “ejection” sound as the blood rapidly flows through a structurally altered valve or enlarged root. The other options involve different valves or outflow tracts (mitral valve prolapse with a late systolic click, pulmonic stenosis, or tricuspid regurgitation) and do not produce the characteristic aortic ejection sound. Therefore, the association with a dilated aorta or aortic valve disease is most consistent.