Urethral Pressure Profile (UPP)
Nexam Pro User Manual
103
Resting area under stress (RAS)
The resting area under stress is the area under a stress profile, minus the area
of the peaks.
The profilometry results for this investigation are only valid if a LABORIE
catheter puller is used to pull out the catheter during the investigation. Pulling
the catheter manually yields unpredictable, erroneous results due to variations
and inaccuracy in pulling speed. The puller speed, as set in the protocol, is
used to calculate distance and area related parameters.
Other parameters
You can find more information about the calculation of other parameters by
clicking the
Help
button in the
Results
window.
7.4.3
Transmission
Figure 7.5
Transmission
The letters between square brackets refer to the corresponding letters in the
above image.
The pressure transmission ratio is the increment in urethral pressure on stress
(cough) as a percentage of the simultaneously recorded increment in vesical
pressure. For stress profiles obtained during coughing, pressure transmissions
can be obtained at each cough peak along the urethra, by placing two
transmission markers. One marker should be placed at the base of the cough
peak [D] and one at the top of the peak [E].
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