[Clinical study of resiniferatoxin on neurogenic bladder].
OBJECTIVE
To understand the effect of resiniferatoxin on neurogenic bladder by intravesical filling.


METHODS
Twenty-four male spinal cord injury patients with an obviously low cystometric capacity, 2 incomplete cervical cord injury, 5 complete thoracic cord injury, 4 incomplete thoracic cord injury, 5 incomplete lumbar cord injury and 8 complete lumbar cord injury were examined. The age range was 24 - 58 years old and the course of disease 1 - 6 years. There were 0.0063 mg/4 ml RTX in each bottle, it was dissolved in 50 ml physiologic saline and was infused into bladder slowly, kept 30 min, then was discharged by intermittent catheterization (IC). During the process, the patients were requested to fill a micturition chart and conduct urodynamic examination before and after the infusion. We regulated that it was utility when the amount of increased maximal cystometric capacity (MCC) exceeded or was 100 ml, otherwise it was invalid.


RESULTS
The urodynamic examination before intravesical filling and 1 week after intravesical filling showed that the average MCC were (210 ± 23) ml and (360 ± 30) ml respectively, the average bladder compliance were (17 ± 3) ml/cm H2O and (24 ± 5) ml/cm H2O, there were statistic difference between them (both P < 0.01). The overall effective rate was 62.5%. It lasted 1 - 4 months.


CONCLUSIONS
Resiniferatoxin is effective to increase the cystometric capacity and booster the bladder compliance.
Liu
Tie-jun
TJ
Department of Neurourology, Beijing Xishan Hospital, Beijing Rehabilitation Center, Beijing 100144, China. urologistliu@hotmail.com
Zhao
Meng-jie
MJ
Sha
Ke-fu
KF
Gao
Ju-zhong
JZ
D000328:Adult; D003187:Compliance; D004224:Diterpenes / Q000494:pharmacology* / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome; D001743:Urinary Bladder / Q000187:drug effects*; D001750:Urinary Bladder, Neurogenic / Q000188:drug therapy / Q000503:physiopathology*; D014563:Urodynamics / Q000187:drug effects*
D004224:Diterpenes; C024353:resiniferatoxin