Aortic regurg Pressure Curve

[aspiringmd1015]

It states in the pressure tracings, that there is NO true isovulmetric relaxation(makes sense bc during diastole blood will regurgitate form the aorta into the LV and the volume will increase, so cant be isovolumetric) and then it states that there is a reduced period of isovolumetric contraction, is this bc of the increased EDV, the pressure inside the ventricle will be reached quicker?

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[stepone2015]

It states in the pressure tracings, that there is NO true isovulmetric relaxation(makes sense bc during diastole blood will regurgitate form the aorta into the LV and the volume will increase, so cant be isovolumetric) and then it states that there is a reduced period of isovolumetric contraction, is this bc of the increased EDV, the pressure inside the ventricle will be reached quicker?

Yup.

 

[aspiringmd1015]

also, in aortic stenosis, bc of the large pressure gradient, your LVP is high, but aortic pressure drops bc of the large pressure gradient, so would this lower your systolic? meaning your systolic would be close to your diastolic?

 

[stepone2015]

also, in aortic stenosis, bc of the large pressure gradient, your LVP is high, but aortic pressure drops bc of the large pressure gradient, so would this lower your systolic? meaning your systolic would be close to your diastolic?

I don't believe so. There will be decreased CO by the heart, but the heart will compensate for the decreased output by increasing heart rate. In fact, pulse pressure will narrow in AS.

 

[aspiringmd1015]

definitely a narrowed pulse pressure, bc the systole will be decreased towards the diastolic pressure right?(narrow pulse pressure)