Measurement of voiding pressures on ambulatory monitoring: comparison with conventional cystometry.
A series of 20 patients underwent conventional medium fill cystometry (CMG) and ambulatory monitoring during natural bladder filling (AM). The measurement of voiding pressures by the 2 techniques was compared. The maximum subtracted detrusor contraction pressure recorded during CMG (50 +/- 30 cm H2O) was significantly less than that recorded during AM (86 +/- 35 cm H2O). Voiding pressures during natural filling are greater than those observed during conventional urodynamic studies: this finding may have important implications in the definition of bladder outflow obstruction.
Webb
R J
RJ
Department of Urology, Freeman Hospital, Newcastle upon Tyne.
Griffiths
C J
CJ
Ramsden
P D
PD
Neal
D E
DE
D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008722:Methods; D008991:Monitoring, Physiologic / Q000379:methods*; D011312:Pressure; D001743:Urinary Bladder / Q000503:physiopathology*; D014554:Urination