Which sign is associated with Tricuspid Regurgitation and involves increased murmur intensity with a particular respiratory maneuver?

Which sign is associated with Tricuspid Regurgitation and involves increased murmur intensity with a particular respiratory maneuver?

• A. Increase with inspiration
• B. Increases with Valsalva
• C. Decreases with inspiration
• D. Absent on inspiration

Answer: (A)

Right-sided heart murmurs change with breathing because inspiration increases venous return to the heart. For tricuspid regurgitation, more blood flows back through the tricuspid valve during systole when venous return is higher, so the murmur becomes louder with inspiration. This inspiratory intensification is known as the Carvallo sign and is a classic clue that the murmur arises from the right side of the heart. In contrast, many left-sided murmurs do not show this inspiratory accentuation (and can even lessen with inspiration). So the described sign—murmur loudness increasing with inspiration—is typical of tricuspid regurgitation.

Right-sided heart murmurs change with breathing because inspiration increases venous return to the heart. For tricuspid regurgitation, more blood flows back through the tricuspid valve during systole when venous return is higher, so the murmur becomes louder with inspiration. This inspiratory intensification is known as the Carvallo sign and is a classic clue that the murmur arises from the right side of the heart. In contrast, many left-sided murmurs do not show this inspiratory accentuation (and can even lessen with inspiration). So the described sign—murmur loudness increasing with inspiration—is typical of tricuspid regurgitation.