title: Efficacy of butylscopolamine for the treatment of catheter-related bladder discomfort: a prospective, randomized, placebo-controlled, double-blind study.
abstract: BACKGROUND
  Catheter-related bladder discomfort (CRBD) secondary to intraoperative catheterization of urinary bladder is one of the most distressing symptoms during recovery from anaesthesia. Butylscopolamine, a peripheral antimuscarinic agent, is effective for relieving the pain, which is because of smooth muscle contraction. The aim of this study was to assess the efficacy and safety profiles of butylscopolamine in treating CRBD after urological surgeries.
  
  
  METHODS
  Adult male patients undergoing urological surgery requiring urinary bladder catheterization intraoperatively were enrolled. Induction and maintenance of anaesthesia were standardized. Patients were randomized into two groups after complaining of CRBD in the post-anaesthesia care unit. The control group (n=29) received normal saline and the butylscopolamine group (n=28) was administered butylscopolamine 20 mg i.v. The severity of CRBD, postoperative pain, and adverse effects were assessed at baseline, 20 min, 1, 2, and 6 h after administration of the study drug.
  
  
  RESULTS
  The severity of CRBD observed in the butylscopolamine group was significantly lower than that of the control group at 1, 2, and 6 h after administration of the study drug [59 (12), 50 (16), 40 (21) in the control group vs 41 (22), 32 (25), 23 (18) in the butylscopolamine group, P<0.01]. Rescue analgesics were required less in the butylscopolamine group than in the control group (P=0.001). Adverse events were comparable between the two groups.
  
  
  CONCLUSIONS
  Butylscopolamine 20 mg administered i.v. after complaining CRBD during recovery reduced both the severity of CRBD and the need for rescue analgesics without adverse effects in patients undergoing urologic surgeries.
authors.affiliation: Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 463-707, Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Ryu
authors.forename: J W
authors.initials: JW
authors.lastname: Hwang
authors.forename: J W
authors.initials: JW
authors.lastname: Lee
authors.forename: J H
authors.initials: JH
authors.lastname: Seo
authors.forename: H P
authors.initials: HP
authors.lastname: Park
authors.forename: A Y
authors.initials: AY
authors.lastname: Oh
authors.forename: Y T
authors.initials: YT
authors.lastname: Jeon
authors.forename: S H
authors.initials: SH
authors.lastname: Do
mesh_terms: D000328:Adult; D000368:Aged; D001794:Blood Pressure / Q000187:drug effects; D002086:Butylscopolammonium Bromide / Q000009:adverse effects / Q000627:therapeutic use*; D004311:Double-Blind Method; D053159:Dysuria / Q000188:drug therapy* / Q000209:etiology; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007430:Intraoperative Care / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D018727:Muscarinic Antagonists / Q000009:adverse effects / Q000627:therapeutic use*; D010147:Pain Measurement / Q000379:methods; D010149:Postoperative Pain / Q000188:drug therapy* / Q000209:etiology; D011182:Postoperative Care / Q000379:methods; D011446:Prospective Studies; D016896:Treatment Outcome; D014546:Urinary Catheterization / Q000009:adverse effects*; D013521:Urologic Surgical Procedures, Male / Q000009:adverse effects; D055815:Young Adult
chemical_list: D018727:Muscarinic Antagonists; D002086:Butylscopolammonium Bromide
keywords: complications; surgery, urological