Fluke Biomedical ProSim 8 Series, User Manual

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ProSim 8
Users Manual
38
Mitral Valve Cahteterization Simulation
The mitral valve controls flow from the left atrium (LA) to the left ventricle (LV)
and prevents flow in the reverse direction. A mitral valve test is done indirectly
with pressure measurements in the pulmonary artery (PA). There are two
measurements: normal and wedged. A wedged measurement is done with an
inflated balloon (PAW) in the pulmonary artery to measure the back pressure
from the left ventricle through the left atrium and the lungs. At the start of the
procedure, IBP channel 1 is set to LV 120/0 and channel 2 is set to pulmonary
artery (PA) 25/10/. IBP channel 1 stays at LV 120/0 for reference throughout the
simulation.
1. Push the
Insert softkey to simulate a change in IBP channel 2 catheter
pressure to the pulmonary artery wedge pressure (PAW) of 10/2.
glh056.bmp
Figure 23. Mitral Valve Catheterization Simulation Screen
For a normal valve, the PAW pressure stays low because there is little back
pressure from the left ventricle through the left atrium and the lungs.
2. Push the Increase Pressure or Decrease Pressure to simulate a bad mitral
valve. There are six pressure values between 10/2 mmHg and 36/24 mmHg.
Each push of the increase softkey sets the left ventricle pressure to 26/18,
29/19 mmHg, 31/21 mmHg, 34/22 mmHg, and 36/24 mmHg. Each push of
the decrease softkey sets the pressure down from 36/24 mmHg to
10/2 mmHg with the same pressure steps.
3. Push the Pullback softkey to simulate the pulmonary artery wedge (PAW)
balloon deflation. This changes IBP channel 2 back to the pulmonary artery.