Enlarged heart? Echo stress test results?

[Matiadbueno94]

Peak stress: LV size was markedly reduced. Excessive augmentation in LV function LVEF 75-80% Echocardiographic imaging done immediately post exercise. Demonstrates enhanced contractility of all segments and a decrease in left ventricular cavity size.

Those were the results of the stress echo. Its worrying me. Why does it say decrease in left ventricular cavity? Doesnt it get bigger during exercise to pump easier? And it also says excess augmentatiom in LV function? What does that mean? Im afraid i have cardiomyopathy or somethig. But my cardiologist says its not. My regular echo was normal except some trivial regugitation in one of the valves.

[Occupant]

To me it sounds like you were born with the left ventricle smaller than usual and with enhanced contractibility that's why your LVEF is so high. And why do you think it gets bigger when you exercise? It is what it is.

[Matiadbueno94]

My left ventricle is normal in size. So it cant be that. My doctor said its because when you exercise the ventricle gets smaller to pump more blood. But i didnt know it worked that way. No idea.