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28
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CONGRESS OF THE ESPU
09:20–09:23
S21-3 (PP)
A PORTABLE UROFLOWMETRY DEVICE NAMED
P-FLOWDIARY
®
COMBINED WITH FREQUENCY VOLUME
CHARTS IS USEFUL IN CLARIFYING LOWER URINARY
TRACT SYMPTOMS IN CHILDREN
Kazuyoshi JOHNIN, Kenichi KOBAYASHI and Akihiro KAWAUCHI
Shiga University of Medical Science, Urology, Otsu, JAPAN
PURPOSE
It has been generally accepted that uroflowmetry is an important and noninvasive diagnostic tool
for children with lower urinary tract symptoms (LUTS). However, it is impossible to offer comfort-
able environment for children to do several uroflows at the clinic. P-Flowdiary
®
, which is a handy
uroflowmetry device, available in Japan from 2015, can easily record all uroflows and simultaneous
frequency volume charts (FVC) at home. To evaluate the feasibility of this new device, we compared
uroflows and FVC at home and the clinic among boys with several conditions.
MATERIAL AND METHODS
Forty boys(mean age 9.0±1.9 years) with several conditions underwent home uroflowmetry
(P-Flowdiary
®
, (Muranaka Medical Instruments Co. Ltd., Osaka, Japan) for at least 2 days. All boys
were toilet-trained. Several conditions as follows: normal control(10), monosymptomatic nocturnal
enuresis (MNE, 9), non-monosymptomatic nocturnal enuresis (NMNE, 10), daytime urinary incon-
tinence (DUI, 11). We evaluated the uroflows data both at home and at the clinic. Interpretation of
uroflows data was done according to updated ICCS terminology documents (Austin P, J Urol 2014).
We defined the staccato or interrupted flow pattern as >3 peaks and troughs of more than the
square root of maximal flow.(Vijverberg MA, Neurourol Urodyn 2011). We used automated objective
patterning software(Kanematsu A, J Urol 2010, J Pediatr Urol 2013).
RESULTS
The percentage of normal voider was significantly smaller at home (16%) than at clinic(38%)
(p<0.01). The percentage of Bell pattern is not significantly larger at home (61.5%) than at
clinic(45%)(p=0.07). The percentage of normal voider was significantly smaller among DUI(9.6%)
than control(21.4%) and MNE(20.2%) (p<0.01). The percentage of Bell pattern was significantly
smaller among NMNE(52.2%) than among control(64.9%) and DUI(66.5%) (P<0.05).
CONCLUSIONS
P-Flowdiary
®
is a novel device to record all uroflows and FVC simultaneously at home, and offers
useful information of LUTS in children.