Table 2.

Assessment score and PVR before and after the external sphincter BoNT-A injection.

	Before BoNT-A Injection	After BoNT-A Injection	p Value
IPSS	21.83	13.33	0.002
PPBC	3.58	1.75	0.001
QoL on IPSS	3.92	1.83	<0.001
PVR (mL)	279.92	76	0.016
VV (mL)	147.16	239.50	0.003

IPSS = international prostate symptom score; PPBC = patient perception of bladder condition score; QoL on IPSS = quality of life on IPSS; PVR = post-void residual volume; VV = voided volume.