You should also know the murmur of tricuspid regurgitation. It’s very much like mitral regurgitation, but it’s heard over the so-called tricuspid area, at the lower left sternal edge, and it may behave in a unique manner during respiration, that is, during inspiration it may become augmented. Let’s everyone listen together while we watch breathing and we look at the carotid vessel for timing.
[sounds]
What you heard was [sounds]. You do that, mimic it [sounds]. What happened is that when the patient breathes in, intrathoracic pressure drops, that brings more blood back to the right heart during inspiration, hence, augmenting the murmur of tricuspid regurgitation. Tricuspid regurgitation most often occurs in the context of other heart disease, as in a patient with pulmonary hypertension and right heart disease. Again, tricuspid regurgitation is augmented during inspiration.
Tricuspid Regurgitation During Expiration / Inspiration
This is a graphic example of the holosystolic, plateau-shaped murmur of tricuspid regurgitation. Note that the murmur increases with inspiration and that it is high frequency. Let us listen together. [sounds]