title: Sympathetic skin response in patients with vascular erectile dysfunction.
abstract: OBJECTIVE
  We aimed to investigate the utility of sympathetic skin response (SSR) test for evaluating vasculogenic erectile dysfunction (ED) which is the most common type of impotence.
  
  
  METHODS
  Men in the age group of 28 to 60 years and suffering from vasculogenic ED, as confirmed by a papaverin test and color Doppler sonography, at least for 6 months referred from our university urology department were included. We used the International Index of Erectile Function (IIEF-5) for grading severity of dysfunction and recorded the SSR of every patient from the median, tibial, and dorsal nerves of the penis. One-way analysis of variance (ANOVA), independent t-test and Pearson's correlation coefficient were used for comparing quantitative variables, and Fisher's Exact test was used for comparing qualitative variables. The Mann-Whitney U Test and the Kruskal-Wallis test were performed for analysis of data that were not normally distributed. A p value of less than 0.05 was considered significant.
  
  
  RESULTS
  Forty-two patients were recruited for the study. We found a strong statistical relationship between the IIEF score and the pathologic SSR registered from every mentioned nerve. Patients with abnormal SSR had more severe ED according to IIEF score (p<0.001). In addition, the IIEF score had a significantcorrelation with diabetes mellitus and cardiovascular disease (t-test; p<0.05).
  
  
  CONCLUSIONS
  Our results confirmed the presence of autonomic dysfunction in patients with vasculogenic impotence via an SSR test. We suggest evaluating the efficacy of the SSR test in patients with vascular impotence for treatment response monitoring in future studies.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: Mostafa
authors.initials: M
authors.lastname: Jazayeri
authors.affiliation: Department of Physical Medicine and Rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: Behrooz
authors.initials: B
authors.lastname: Kazemi
authors.affiliation: Department of Urology, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Aminsharifi
authors.affiliation: Department of Physical Medicine and Rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran. ; Shiraz Burn Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Ashraf
authors.affiliation: Department of Physical Medicine and Rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: Mahshid
authors.initials: M
authors.lastname: Naseri
authors.affiliation: Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Nasseri
authors.affiliation: Department of Physical Medicine and Rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran. ; Shiraz Geriatric research Centre, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: Amirhooshang
authors.initials: A
authors.lastname: Vahedi
keywords: Autonomic nervous system; Electrodiagnosis; Erectile dysfunction