Abstract Book - 26th ESPU Congress, Joint Meeting with ICCS + SPU + AAP/SOU + AAPU + SFU

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S27-11 (P)
EVALUATING THE METHODS FOR POSTVOIDING RESIDUAL VOLUME
ASSESSMENT AND FACTORS THAT CAN INTERFERE WITH THE RESULTS
Beytullah YAGIZ1, ünal BIÇAKCI1, Nilufer BIÇAKCI2, Yasar ISSI3, Neriman OZDEN1, Burak TANDER1 and Mithat
GUNAYDIN1
1) ONDOKUZMAYIS UNIVERSITY, PEDIATRIC SURGERY, Samsun, TURKEY - 2) Samsun Training and Research Hospital,
Nuclear Medicine, Samsun, TURKEY - 3) ONDOKUZMAYIS UNIVERSITY, UROLOGY, Samsun, TURKEY
PURPOSE
Postvoiding residual (PVR) urine assessment is an important tool in the evaluation of patients with lower urinary tract
this study we evaluate the three methods used to assess postvoiding residual urine and factors that can
interfere with the results.
MATERIAL AND METHODS
A total of 32 patients, 18 with spina bifida and 14 with overactive bladder syndrome are enrolled in the study. PVR
evaluation with urethral catheterisation, Caresono PadScan HD5® ultrasound and visual residual urine assessment on
micturition cystourethrogram are compared. The relation of postvoiding residual urine with VUR status, kidney scarring
on DMSA scan, bladder trabeculation on cystourethrogram are evaluated.
RESULTS
Mean PVR values are not significantly different between groups for any method.
In overactive group, ultrasound and catheterisation correlate well for PVR determination while catheterisation with
cystourethrogram and ultrasound with cystourethrogram did not.
In spina bifida group, all three methods correlate well with each other for PVR determination.
In both spina and overactive group, presence of renal scarring did not demonstrate any significant relation with PVR.
PVR values are higher in the presence of VUR even though not statistically significant. Similarly higher PVR values are
observed with higher VUR grades even though not statistically significant.
CONCLUSIONS
PVR assessment with ultrasound is a reliable method as urethral catheterisation. Although, PVR evaluation on
cystourethrogram is less reliable than others, it can provide additional information in certain circumstances (VUR,
bladder trabeculation etc.). Although statistical significance could not be demonsrated, higher residual volume is
observed in the presence of renal scarring, VUR and bladder trabeculation.