atria has to struggle to push blood down into ventricle so EDV Decreases than normal . But Systole here is almost normal as there’s problem in opening of MV not it’s closure so ESV almost remain same . So overall ESV remain same and EDV Decreases so graph shifts to left .
Summary : Graph shift to left only in MS . In rest all it shifts to right
Now in MR : problem is with systole . During systole blood not only get ejected in aorta but also into atria . So ESV slightly decreases but In next cycle this extra blood (ejected into atria) will come down again and EDV will again increase . Here EDV increases more than Decrease in ESV . So overall again graph will shift to right Just see 2 things in these graphs : ESV and EDV .
In AS : Problem is in systole not diastole . So ESV will increase because complete ejection could not happen due to stenosis . Now slowly due to collection of ESV volume overload will happen and eventually EDV will also start increasing . So both ESV and EDV moves towards Right of the normal graph .
In AR : problem is in diastole that in diastole not only blood come from left atria but also leak back from aorta during diastole in retrograde fashion so ultimately EDV increases .
Also during start of diastole Aortic valve fails to close so Isovolumetric relaxation fail to happen and pressure drops back rapidly such that ESV also increases slightly .
Again ESV and EDV both move to right of graph