Solar Blue User Manual
69
6.
Pressure-flow study
6.1
Introduction
The pressure-flow study consists of two phases:
•
Filling phase (cystometry)
•
Voiding phase (uroflow)
During the filling phase, the pressure
–volume relationship of the bladder is
measured. The filling phase is used to assess detrusor activity, bladder
sensation, capacity, and compliance. The voiding phase registers the miction
flow and voided volume during micturition.
6.2
Channels
The following channels can be measured during a pressure-flow study:
•
Vesical pressure
P
ves
(P1)
•
Abdominal pressure
P
abd
(P2)
•
Urethral pressure
P
ura
(P3)
•
Detrusor pressure
P
det
(P1-P2) (calculated)
•
Closure pressure
P
clos
(P3-P1) (calculated)
•
Infused volume
V
in
•
EMG
EMG
•
Miction volume
V
mic
•
Miction flow
Q
ura
During a pressure-flow study, the patient should be awake, un-anaesthetized,
and neither sedated nor taking drugs that affect bladder function. Any
variations should be specified.
6.3
Investigation
Click the
Pressure-flow study
button to start the pre-test.
❑
Prepare the pump and the pump tube, as described in § 2.5.3.
❑
Prepare the flowmeter, as described in § 2.5.8.
