title: Detrusor and blood pressure responses to dorsal penile nerve stimulation during hyperreflexic contraction of the bladder in patients with cervical cord injury.
abstract: OBJECTIVE
  To investigate the immediate effect of dorsal penile nerve (DPN) stimulation on detrusor pressure (P(det)) and blood pressure during hyperreflexic contractions of the bladder in patients with cervical spinal cord injury (SCI).
  
  
  METHODS
  Blood pressure and P(det) monitoring during cystometry with and without DPN stimulation.
  
  
  METHODS
  Urodynamic laboratory in a university hospital in Korea.
  
  
  METHODS
  Eight men (age range, 20-55y) with cervical SCI that was incurred from 4 months to 10 years before this study.
  
  
  METHODS
  During water cystometry, blood pressure was monitored with an intra-arterial catheter introduced percutaneously into the radial artery and was recorded simultaneously with the P(det). Blood pressure was also measured manually with an electronic blood pressure cuff. Electric stimulation was applied to the DPN by using surface electrodes each time a bladder contraction was detected. Stimulation intensity was twice the threshold of the pudendal-anal reflex.
  
  
  METHODS
  P(det), systolic blood pressure, and diastolic blood pressure.
  
  
  RESULTS
  As P(det) increased, the blood pressure increased in all cases. All the reflex contractions of the bladder were effectively suppressed by DPN stimulation, and as the P(det) decreased during stimulation, radial arterial pressure also decreased immediately and significantly.
  
  
  CONCLUSIONS
  DPN stimulation can decrease P(det) and the increased blood pressure associated with it.
authors.affiliation: Department of Rehabilitation Medicine, Wonju Christian Hospital, Wonju, Korea. lee02@wonju.yonsei.ac.kr
authors.forename: Young-Hee
authors.initials: YH
authors.lastname: Lee
authors.forename: Graham H
authors.initials: GH
authors.lastname: Creasey
authors.forename: Hyunkyo
authors.initials: H
authors.lastname: Lim
authors.forename: Jaemann
authors.initials: J
authors.lastname: Song
authors.forename: Kihak
authors.initials: K
authors.lastname: Song
authors.forename: Jinweon
authors.initials: J
authors.lastname: Kim
mesh_terms: D000328:Adult; D020211:Autonomic Dysreflexia / Q000503:physiopathology*; D001794:Blood Pressure; D004599:Electric Stimulation Therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010413:Penis / Q000294:innervation; D013119:Spinal Cord Injuries / Q000503:physiopathology*; D001743:Urinary Bladder / Q000503:physiopathology*; D001750:Urinary Bladder, Neurogenic / Q000503:physiopathology; D014563:Urodynamics