Erectile dysfunction after transurethral prostatectomy for lower urinary tract symptoms:results from a center with over 500 patients

<正> Aim:To identify possible risk factors for erectile dysfunction(ED)after transurethral resection of prostate(TURP)for benign prostatic hyperplasia(BPH).Methods:Between March 1999 and March 2004,629 patients underwentTURP in our department for the treatment of symptomatic BPH.All patients underwent transrectal ultrasoundexamination.In addition,the flow rate,urine residue,International Prostate Symptom Score(IPSS)and quality of life(QOL)were recorded for those who presented without a catheter.Finally,the erectile function of the patient wasevaluated according to the International Index of Erectile Function Instrument(IIEF-5)questionnaire.It was deter-mined that ED existed where there was a total score of less than 21.The flow rate,IPSS and QOL assessment wereperformed at 3 and 6 months post-treatment.The IIEF-5 assessment was repeated at a 6-month follow-up.A logisticregression analysis was used to identify potential risk factors for ED.Results:At baseline,522(83%)patientsanswered the IIEF-5 questionnaire.The mean patient age was(63.7±9.7)years.The ED rate was 65%.After 6months,459(88%)out of the 522 patients returned the IIEF questionnaire.The rest of the group was excluded fromthe statistical analysis.Six months after TURP,the rate of patients reporting ED increased to 77%.Statisticalanalysis revealed that the only important factors associated with newly reported ED after TURP were diabetes mellitus(P=0.003,r=3.67)and observed intraoperative capsular perforation(P=0.02,r=1.12).Conclusion:Theincidence of postoperative,newly reported ED after TURP was 12%.Risk factors for its occurrence were diabetesmellitus and intraoperative capsular perforation.(Asian J Androl 2006 Jan;8:69-74)