Diagnosis of voiding dysfunction by pressure-flow study in women

Table 1 Voiding patterns of “healthy, continent or asymptomatic” women

	Rud et al[13]	Rud et al[14]	Karram et al[15]	Pauwels et al[16]
No. of patients	16	6	30	26
Patients condition	Healthy	Healthy	Asymptomatic, continent	Healthy, history free, continent
Age, yr (range)	33 (23-73)	42 (37–54)	34	26
Definitions
Detrusor contraction	Not defined	Not defined	Increase in detrusor pressure of 5 cm H2O above resting pressure	Increase in detrusor pressure of 15 cm H2O above resting pressure1
Strain to void	Not defined	Not defined	Increase in abdominal pressure of at least 10 cm H2O above baseline	Increase in abdominal pressure of at least 10 cm H2O above baseline during the entire voiding phase
Voiding pattern
Drop in urethral pressure	16/16 (100%)	6/6 (100%)	Not studied	Not studied
Detrusor contraction	16/16 (100%)	6/6 (100%)	30/30 (100%)	26/26 (100%)
Strain to void	0/16 (0%)	0/6 (0%)	22/30 (73%)	11/26 (42%)

¹There was no definition of detrusor contraction but increase in detrusor pressures of at least 15 cm H₂O developed in all women.