Fluke Biomedical medSim 300B - Manual (Page 113)

Option 1
Cardiac Catheterization
4
4-15
The single lumen catheter pullback (pulmonary valve) simulation begins as
follows on the medSim 300B:
bp3:pa
ins
<F1> <F2> <F3> <F4>
bp4:pa
eic173.eps
The top line of the display gives the following information:
bp3:pa BP channel 2 pulmonary arterial pressure—25/10
bp4:pa BP channel 4 pulmonary arterial pressure—25/10
2. To simulate insertion of the catheter back into the right ventricle, select
<F1>-INS. The medSim 300B returns to the previous display as shown below:
bp3:pa
plbk down up
<F1> <F2> <F3> <F4>
bp4:rv ###/0
eic174.eps
Note
In the above display "###/0" represents the previously selected right
ventricular pressure value.
3. To exit the medSim 300B pulmonary valve simulation, press the <up arrow> key
until you view the desired menu.
Pressure Gradients across the Mitral Valve
For an indication of mitral valve function, it is necessary to compare left atrial pressure
(LAP) and left ventricular end diastolic pressure (LVEDP). Since a direct measurement
of LAP is difficult to obtain, LAP is indirectly measured by using pulmonary artery
wedge (PAW) pressure.
Normal peak PAW pressure is below LVEDP. By comparing PAW pressure to LVEDP,
any variations from normal can indicate an abnormal mitral valve.
The medSim 300b illustrations that follow simulate blood pressure relationships
indicating:
• A normal mitral valve
• A defective mitral valve