Heart Pressure Curves

[njshibby]

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Does anyone know a good site to look these up with explanation of disease processes?

 

[Cliff Huxtable]

Do any of these help?

http://www.cvphysiology.com/Cardiac Function/CF027.htm

http://www.healthsystem.virginia.edu/internet/anesthesiology-elective/cardiac/basicphys.cfm

 

[njshibby]

Appreciate it but I meant something like these types:

 

[Cliff Huxtable]

Found a youtube video:

www.youtube.com/watch?v=K-siwl6ADeo

 

[njshibby]

Awesome find that guy is good. Also does anyone know what would cause a midsystolic drop in aortic pressure in an elderly patient with chronic angina symptoms? I know that's partially telling of hypertrophic obstructive cardiomyopathy but elderly patient and chronic angina doesn't fit the bill.

 

[future_dr_house]

Awesome find that guy is good. Also does anyone know what would cause a midsystolic drop in aortic pressure in an elderly patient with chronic angina symptoms? I know that's partially telling of hypertrophic obstructive cardiomyopathy but elderly patient and chronic angina doesn't fit the bill.

In HCM, the enlarged septal wall shifts the aortic outlet closer towards the mitral valve. Because the aortic outlet is smaller in HCM, there will be an increased velocity of blood. This pulls the flaps of the mitral valve (which is close in proximity) over and partially obstructs the aortic outflow causing the midsystolic drop in aortic pressure.

This drop in systolic pressure narrows the pulse pressure (sys - dia) and you have decreased flow into the coronary ostia and vessels leading to angina.

Check out pg 193 in RR path if what I wrote doesn't make sense. It has a diagram of HCM.

 

[njshibby]

oh excellent appreciate it dr. house