Assessment of Severity of Aortic Regurgitation and Left Ventricular Function in Aortic Regurgitation

A positive Hill's sign is an exaggeration of the normal blood pressure differential between the arm and the leg. This sign was discussed in Chapter 2 in relation to the peripheral signs of aortic regurgitation (50). A systolic blood pressure differential of 60 mmHg or greater may be noted in the presence of moderate to severe degrees of aortic regurgitation. In those patients with aortic regurgitation when this sign is detected, serial measurements will aid in follow-up. During follow-up, ifthe blood pressure differential is found to be increasing, then it must be considered as a sign of worsening degree of aortic regurgitation. A gradual narrowing of the blood pressure differential, however, would not mean an improvement in the degree of the aortic regurgitation. It might indicate in fact a progressive development of left ventricular dysfunction. When significant left ventricular dysfunction and heart failure develops consequent to longstanding aortic regurgitation, the blood pressure differential between the arm and the leg will not be significant.

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Blood Pressure Health

Blood Pressure Health

Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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