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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.

Type

Journal article

Journal

Br J Urol

Publication Date

02/1990

Volume

65

Pages

152 - 154

Keywords

Adult, Female, Humans, Male, Methods, Monitoring, Physiologic, Pressure, Urinary Bladder, Urination