- The heart pumps blood from the left
ventricle (chamber) of the heart to the rest of the body by
way of a large blood vessel known as the aorta. The aortic
valve, located between the left ventricle and the aorta,
opens when the ventricle pumps blood to the aorta, and
closes (passively) when at rest (i.e., between heartbeats).
If the valve leaflets are damaged or fail to close properly,
blood leaks back from the aorta into the left ventricle
between heartbeats. This is known as aortic
- Usually none until age 40-50
- Shortness of breath on exertion
- Shortness of breath while resting
- Chest pain
- Chronic (slow onset) aortic regurgitation, e.g.,
rheumatic heart disease --
- Decreased diastolic blood pressure
- Wide pulse pressure (large
difference between systolic and diastolic)
- Pulse has a rapid rise and fall
(known as a Corrigan's pulse)
- Diastolic murmur over a partially
compressed femoral artery
- Nail bed capillaries show
- Apical heart impulse is prominent
- Heart reveals a high-pitched
decrescendo diastolic murmur in the aortic area. An
Austin Flint murmur may be present (low-pitched, mid or
late diastolic murmur).
shows left ventricular hypertrophy
- Chest X-Rays shows an enlarged heart (cardiomegaly)
- Acute aortic regurgitation, e.g., infective endocarditis
- Sudden onset of aortic
- Lungs may reveal crackles of Pulmonary Edema
- Echocardiogram --
reveals the valve abnormality, and Doppler studies show
the degree of regurgitation.
- Scintigraphic studies can asses
left ventricular function
- Cardiac catheterization is often
- Vasodilator medications such as
ACE inhibitors, hydralazine, and nifedipine can decrease
the severity of the regurgitation.
- Beta-blocker medications may slow progression in those with Marfan's Syndrome.
- Surgical valve replacement in those with symptoms or
significant left ventricular dysfunction
- Usually caused by infective endocarditis -- surgical
replacement of the valve is usually needed. Vasodilators may
temporarily stabilize the
- Acute aortic regurgitation -- this
is a life-threatening medical condition. Seek immediate
emergency medical treatment.
- Chronic aortic regurgitation --
this condition needs to be followed carefully by your
physician. A cardiologist is often
- Persons with aortic regurgitation should have antibiotic prophylaxis to prevent infective endocarditis. This includes dental, respiratory, esophageal, gastrointestinal, and genitourinary procedures.
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