Pitfalls of measuring residual urine volume in orthotopic neobladders.
OBJECTIVE
To investigate the pitfalls of measuring postvoid residual urine volume (PVR) in patients with orthotopic neobladders, in an out-patient clinic.


METHODS
Fifteen patients with orthotopic neobladders were enrolled in the study; five patients had a colonic neobladder, five an ileocolic neobladder and five a sigmoid neobladder. The PVR was compared after measuring by catheterization under fluoroscopic monitoring after normal or forced voiding.


RESULTS
The PVR after forced voiding was always less than that after natural voiding, regardless of the type of neobladder.


CONCLUSIONS
Patients with orthotopic neobladders may have a higher PVR after voiding naturally at home than when the PVR measured in hospital.
Okada
H
H
Department of Urology, Kobe University School of Medicine, Japan.
Gotoh
A
A
Fujisawa
M
M
Hara
I
I
Gohji
K
K
Arakawa
S
S
Kamidono
S
S
D000368:Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D001749:Urinary Bladder Neoplasms / Q000503:physiopathology* / Q000601:surgery; D016476:Urinary Reservoirs, Continent; D014554:Urination / Q000502:physiology; D014556:Urine / Q000502:physiology*; D014563:Urodynamics