title: Tamsulosin does not increase 1-week passage rate of ureteral stones in ED patients.
abstract: OBJECTIVE
  The objective of the study is to determine if tamsulosin initiated in the emergency department (ED) decreases the time to ureteral stone passage at 1 week or time to pain resolution, compared to placebo.
  
  
  METHODS
  We performed a prospective, randomized, double-blinded, placebo-controlled trial of tamsulosin vs placebo in ED patients with ureterolithiasis on computed tomography. Patients were identified and enrolled between April 2007 and February 2009 and were randomized to either 0.4 mg of tamsulosin or placebo for 1 week. We contacted participants using a telephone survey on post-ED visit days 1, 2, 3, and 7. The primary outcome was time to stone passage, with secondary outcomes being maximum pain score and amount of pain medication required.
  
  
  RESULTS
  Of the 127 patients enrolled during this study, 15 were lost to follow-up, and 12 required surgical interventions before the 7-day mark, leaving 100 patients for analysis. Of the 100 patients, 53 received tamsulosin and 47 received placebo. There was no difference between groups in percentage of male, mean age, initial serum creatinine, average stone size, stone location, and history of prior stone. The probability that the patient did not pass a stone at 7 days was not different between tamsulosin and placebo, 62.1% (95% confidence interval, 49.1%-75.1%) vs 54.4% (95% confidence interval, 40.3%-68.6%; P = .58). There was no significant difference in the high pain score (P = .12) or hydrocodone/acetaminophen intake (P = .76) between treatment groups at any of the time points.
  
  
  CONCLUSIONS
  This study reveals no difference in the proportion of stone passage or high pain score and pain medication utilization at 7 days between tamsulosin and placebo.
authors.affiliation: Department of Emergency Medicine, Oakland University William Beaumont School of Medicine, Royal Oak, MI. Electronic address: david.berger@beaumont.edu.
authors.forename: David A
authors.initials: DA
authors.lastname: Berger
authors.affiliation: Department of Emergency Medicine, Emory University School of Medicine, Atlanta, GA.
authors.forename: Michael A
authors.initials: MA
authors.lastname: Ross
authors.affiliation: Division of Urology, Oakland University William Beaumont School of Medicine, Royal Oak, MI.
authors.forename: Jay B
authors.initials: JB
authors.lastname: Hollander
authors.affiliation: Department of Emergency Medicine, Oakland University William Beaumont School of Medicine, Royal Oak, MI.
authors.forename: James
authors.initials: J
authors.lastname: Ziadeh
authors.affiliation: Department of Biostatistics, Oakland University William Beaumont School of Medicine, Royal Oak, MI.
authors.forename: Charity
authors.initials: C
authors.lastname: Chen
authors.affiliation: Department of Emergency Medicine, Oakland University William Beaumont School of Medicine, Royal Oak, MI.
authors.forename: Raymond E
authors.initials: RE
authors.lastname: Jackson
authors.affiliation: Department of Emergency Medicine, Oakland University William Beaumont School of Medicine, Royal Oak, MI.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Swor
mesh_terms: D058668:Adrenergic alpha-1 Receptor Antagonists / Q000627:therapeutic use*; D000328:Adult; D000700:Analgesics / Q000627:therapeutic use; D004311:Double-Blind Method; D004636:Emergency Service, Hospital; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010146:Pain / Q000209:etiology / Q000517:prevention & control; D011446:Prospective Studies; D013449:Sulfonamides / Q000627:therapeutic use*; D000077409:Tamsulosin; D013997:Time Factors; D016896:Treatment Outcome; D014514:Ureteral Calculi / Q000150:complications / Q000175:diagnosis / Q000188:drug therapy*
chemical_list: D058668:Adrenergic alpha-1 Receptor Antagonists; D000700:Analgesics; D013449:Sulfonamides; D000077409:Tamsulosin