ESPU Congress 2018 - Abstract Book

219

11–14 APRIL, 2018, HELSINKI, FINLAND

S1: FUNCTIONAL VOIDING

DISORDERS (part. 2)

Moderators: Jens Larsson (Sweden), Angela Downer (UK)

ESPU-Nurses Meeting on Thursday 12, April 2018,

10:10–11:00

10:10–10:20

S1-4 (LO)

SENS-U: VALIDATION OF A WEARABLE ULTRASONIC

BLADDER MONITOR IN CHILDREN DURING URODYNAMIC

STUDIES

P.G. VAN LEUTEREN

, R WOLTJER

, T.P.V.M. DE JONG

and P DIK

1) University Children's Hospitals UMC Utrecht, Department of Paediatric Urology, Utrecht, NETHERLANDS -

2) Novioscan, Nijmegen, NETHERLANDS - 3) University Children's Hospitals UMC Utrecht and AMC Amsterdam,

Department of Paediatric Urology, Utrecht, NETHERLANDS

PURPOSE

Urinary incontinence is a frequent problem in school-age children. Since many children remain

unaware of a full bladder sensation, the SENS-U Bladder Monitor was invented. The SENS-U is

a small, wearable ultrasound sensor which is positioned on the lower abdomen by a skin-friendly

adhesive. The sensor continuously estimates the bladder filling status and informs the child when

it's time to proceed to the bathroom. In this study, the clinical performance of the SENS-U is evalu-

ated in children during (video)urodynamics.

MATERIAL AND METHODS

In this study, children (6–12 years) were included who were scheduled for a (video)urodynamic

study. During urodynamics, the SENS-U determined the average anterior - posterior bladder dimen-

sion (every 30 sec.) to estimate the filling status. The correlation between the average bladder

dimension and the infused volume is analyzed by Spearman's correlation.

RESULTS

30 patients (boys/girls: 15/15) [mean age: 7.9 ± 1.4 years] were included, in which the SENS-U de-

tected the full bladder prior to voiding in 90 % of the patients (27/30). In the other patients, the

bladder was outside the detection-area due to either erroneous sensor-placement (n=1) or an

obese abdomen in the upright position (n=2). There was a strong correlation (median R = 0.94)

between the average bladder dimension and the infused volume. The detectable voided-volume

ranged between 71–439 ml.

CONCLUSIONS

The SENS-U is able to detect a full bladder with a success-rate of 90 %. When excluding corrupted

data due to misplacement or an obese abdomen, the full bladder was detected in all patients. Future

research will focus on investigating the effect of the SENS-U in incontinence-training.