title: Erectile dysfunction after PlasmaKinetic vaporization of the prostate: incidence and risk factors.
abstract: OBJECTIVE
  To determine the incidence of erectile dysfunction (ED) after PlasmaKinetic vaporization of the prostate (PKVP) using objective and subjective parameters and risk factors.
  
  
  METHODS
  A total of 153 men completed a questionnaire detailing perceived sexual dysfunction and underwent nocturnal penile-tumescence testing using the RigiScan for three consecutive nights 3 or 4 days preoperatively and 3 months postoperatively. The International Index of Erectile Function (IIEF)-5 scores were obtained preoperatively and postoperatively. Full details of each operation were recorded, including grams of tissue resected, operative time, any short-term complications, especially emphasizing capsular perforation, and concomitant diseases such as diabetes and hypertension. The association of risk factors with the development of ED after PKVP was assessed. Complete data were available for 103 men (67.3%). Their mean age was 62.1 years (range 48-83 years).
  
  
  RESULTS
  Postoperatively, 11 patients (10.6%) were found to have ED. Patients who developed ED postoperatively had a lower IIEF-5 score and penile-tumescence parameters preoperatively (for all parameters, P < 0.0001). As risk factors, diabetes, capsular perforation, and an IIEF-5 score <21 were found to be significant.
  
  
  CONCLUSIONS
  The incidence of ED after PKVP measured objectively was 10.6%. In the absence of the risk factors, PKVP is a safe therapeutic strategy with regard to sexual function.
authors.affiliation: The Center of Urology and Andrology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PRC. pxyandrol@163.com
authors.forename: Xiaoyong
authors.initials: X
authors.lastname: Pu
authors.forename: Xinghuan
authors.initials: X
authors.lastname: Wang
authors.forename: Huaipeng
authors.initials: H
authors.lastname: Wang
authors.forename: Liquan
authors.initials: L
authors.lastname: Hu
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017115:Catheter Ablation / Q000009:adverse effects* / Q000295:instrumentation; D048909:Diabetes Complications; D007172:Erectile Dysfunction / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011470:Prostatic Hyperplasia / Q000601:surgery; D012307:Risk Factors; D011795:Surveys and Questionnaires; D014835:Volatilization