Treatment Strategy According to Findings on Pressure-Flow Study for Women with Decreased Urinary Flow Rate

Table 2

Change in parameters after urethral dilatation in patients with bladder outlet obstruction.

Parameters	Pretreatment	Posttreatment	P-value^(1)
Clinical parameters (𝑛=6)
IPSS	20.0 (7.6)^(2)	4.8 (0.8)	.028
QOL index	5.7 (0.5)	2.2 (1.0)	.028
Uroflowmetry
Voided volume (mL)	176.7 (95.0)	222.0 (54.1)	.028
Maximum flow rate (mL/sec)	6.8 (3.2)	13.9 (4.9)	.028
Average flow rate (mL/sec)	3.1 (1.7)	7.9 (3.1)	.028
Postvoid residual urine volume (mL)	236.3 (170.5)	80.8 (102.0)	.028
Pressure flow studies (𝑛=4)
Maximum flow rate (mL/sec)	5.2 (1.5)	14.2 (3.4)	.068
Pressure at maximum flow (cm water)	80.5 (18.0)	49.8 (18.9)	.068
Urethral resistance factor (cm water)	53.2 (14.2)	20.1 (4.9)	.068
Maximum watts factor (W/m^2)	11.4 (2.8)	11.2 (3.7)	<.999

⁽¹⁾Wilcoxon signed-rank test
⁽²⁾Mean (standard deviation).