Carvallo’s sign


Carvallo’s sign is a clinical sign found in patients with


A. Mitral stenosis

B. Mitral regurgitation

C. Tricuspid regurgitation

D. Tricuspid stenosis



Following is TRUE about Carvallo’s sign


A. Murmur of Tricuspid regurgitation becomes softer during expiration

B. Murmur of Tricuspid regurgitation becomes louder during expiration

C. Murmur of Tricuspid regurgitation becomes louder during inspiration

D. Murmur of Tricuspid regurgitation becomes softer during inspiration



Carvallo’s sign – What is the mechanism?


During inspiration in Tricuspid regurgitation

-venous blood flow into the right atrium and ventricle are increases

– stroke volume of the right ventricle during systole increases.

– blood flow from the right ventricle into the right atrium is larger during inspiration,

– cause the murmur to become louder during Inspiration


Carvallo’s sign

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