title: Efficacy of botulinum toxin type A 100 Units versus 200 units for treatment of refractory idiopathic overactive bladder.
abstract: OBJECTIVE
  To evaluate the efficacy and safety of a single intra detrusor injection of BoNTA comparing two different doses (100 U or 200 U) in patients with idiopathic overactive bladder.
  
  
  METHODS
  A randomized prospective study evaluated the efficacy of BoNTA in management of refractory idiopathic overactive bladder and included 80 patients. All patients were assessed initially by taking a history, a physical examination, overactive bladder symptom score, urine analysis, routine laboratory investigations, KUB and pelviabdominal. OABSS was adjusted on all patients postoperative at 1,3,6,9 months also Urodynamic was done for all patients preoperative and postoperative at 3, 6, 9 months.
  
  
  RESULTS
  The mean age was 30.22±8.37 and 31.35±7.61 in group I and II respectively. There was no statistically difference between both groups in all parameters all over the study except at 9 months after treatment. Hematuria was observed 6 and 9 patients in group I and II respectively. Dysuria was observed in 6 and 15 patients in group I and II respectively. UTI was detected in 3 and 7 patients in group I and II respectively.
  
  
  CONCLUSIONS
  A single-injection procedure of 100 U or 200 U BoNTA is an effective and safe treatment for patients with IOAB who failed anticholinergic regimens. OABSS and QoL were improved for 6 months; 100 U injections seemed to have comparable results with 200 U. There was a significant difference at month 9 towards 200 U with more incidences of adverse events.
authors.affiliation: Urology department, Faculty of Medicine, Benha University, Egypt.
authors.forename: Osama
authors.initials: O
authors.lastname: Abdelwahab
authors.affiliation: Urology department, Faculty of Medicine, Benha University, Egypt.
authors.forename: Hammouda
authors.initials: H
authors.lastname: Sherif
authors.affiliation: Urology department, Faculty of Medicine, Benha University, Egypt.
authors.forename: Tark
authors.initials: T
authors.lastname: Soliman
authors.affiliation: Urology department, Faculty of Medicine, Benha University, Egypt.
authors.forename: Ihab
authors.initials: I
authors.lastname: Elbarky
authors.affiliation: Urology department, Faculty of Medicine, Benha University, Egypt.
authors.forename: Aly
authors.initials: A
authors.lastname: Eshazly
mesh_terms: D000328:Adult; D019274:Botulinum Toxins, Type A / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D009465:Neuromuscular Agents / Q000008:administration & dosage*; D011446:Prospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D001743:Urinary Bladder / Q000187:drug effects; D053201:Urinary Bladder, Overactive / Q000188:drug therapy*; D014563:Urodynamics; D055815:Young Adult
chemical_list: D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A