The diagnosis of severe aortic regurgitation due to a congenital valve defect is supported by the patient’s history of a murmur since childhood, systolic hypertension, and prominent carotid arterial neck pulsations. Dyspnea on exertion, paroxysmal nocturnal dyspnea and night sweats offer evidence that the lesion is severe.
The most common etiologies of chronic aortic regurgitation include a congenital bicuspid aortic valve, rheumatic aortic valve disease, post infective endocarditis and aortic root disease. In our patient, a history and physical findings, particularly the ejection sound, are most consistent with a congenital etiology.