Is the Right Atrial Collapse the Most Sensitive?

In general, the right atri collapse is the first chamber to collapse. It's a little tricky because it's more sensitive than specific. You can see a little bit of transient right atril buckling in a lot of situations. But if the collapse persists more than like, a third of the cardia cycle, that's more specific retampe on. Now, let's talk about ventricular diastolic collapse. What features of the mitroler tricospet valve would let me look at? And b why is it coning in when the heart's trying to fill right? Ventricular dice all collapse. I feel like this is the mack daddy of echo findings