title: [A prospective randomized control study: new rigid cystoscopy technology to improve patients' comfort].
abstract: OBJECTIVE
  To determine whether the extruded irrigation solution bag during passage of rigid cystoscope will reduce the patient's discomfort.
  
  
  METHODS
  In the study, 378 male patients undergoing rigid cystoscopies were randomized into "Institute of Urology Peking University (IUPU)" technique group (n = 193) and routine manipulation group (n = 185). All the patients had received 10 mL oxybuprocaine gel before manipulation. In the IUPU technique group, irrigation solution bag was connected with cystoscope sheath and obturator. As the scope passed through the bulbar urethra, a nurse was instructed to extrude the irrigating fluid bag. A 10-point visual analog pain scale assessment was completed by the patient after the procedure.
  
  
  RESULTS
  The visual analog pain score was 2 (1-2) in the IUPU technique group and 4 (3-6) in the routine manipulation group (P < 0.001, Mann-Whitney U test). All the procedure indications had no effect on the findings.
  
  
  CONCLUSIONS
  This study has shown that a simple IUPU technique can significantly reduce the patient's discomfort during outpatient rigid cystoscopy. We strongly recommend this technique for all male patients undergoing rigid cystoscopy.
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Yao
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Fan
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Yan-peng
authors.initials: YP
authors.lastname: Xu
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Ming-jei
authors.initials: MJ
authors.lastname: Liu
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Zhi-song
authors.initials: ZS
authors.lastname: He
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Kan
authors.initials: K
authors.lastname: Gong
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Xue-song
authors.initials: XS
authors.lastname: Li
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Cui-jian
authors.initials: CJ
authors.lastname: Zhang
authors.affiliation: Department of Urology, Peking University First Hospital; Institute of Urology;Natinal Urological Cancer Center, Peking University, Beijing 100034, China.
authors.forename: Li-qun
authors.initials: LQ
authors.lastname: Zhou
mesh_terms: D003558:Cystoscopy / Q000379:methods*; D006801:Humans; D008297:Male; D010045:Outpatients; D010146:Pain; D059408:Pain Management / Q000295:instrumentation*; D010147:Pain Measurement; D011446:Prospective Studies; D014521:Urethra