title: Prospective randomized, controlled study of postoperative pain after titanium silicone rubber clip or Silastic ring tubal occlusion.
abstract: OBJECTIVE
  To determine if laparoscopic sterilization using the Filshie clip causes less postoperative pain as compared to the Falope ring during the first 24 h after surgery.
  
  
  METHODS
  Forty subjects were enrolled. Five milliliters of 0.5% bupivicaine was injected at each of the two incision sites and 5 mL was dripped onto each fallopian tube. Subjects then received one Filshie clip and Falope ring on opposite fallopian tubes; the side of occlusion was randomized. Subjects were questioned about pain prior to the first administration of analgesics postoperatively, 1 and 2 h after surgery, at discharge, and 24 h after surgery.
  
  
  RESULTS
  Forty subjects completed the study; 32 without major deviations from protocol. There was no significant difference in pain between sides with the Filshie clip or Falope ring at any times evaluated.
  
  
  CONCLUSIONS
  There was no significant reduction in the postoperative pain associated with the Filshie clip as compared to the Falope ring within 24 h after surgery.
authors.affiliation: Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine and Magee Womens Research Institute, Pittsburgh, PA, USA. hpymar@mtsinai.on.ca
authors.forename: Helen C
authors.initials: HC
authors.lastname: Pymar
authors.forename: Mitchell D
authors.initials: MD
authors.lastname: Creinin
authors.forename: Manuel C
authors.initials: MC
authors.lastname: Vallejo
mesh_terms: D000328:Adult; D000772:Anesthesia, Local; D005260:Female; D006801:Humans; D010535:Laparoscopy / Q000009:adverse effects*; D010147:Pain Measurement / Q000379:methods; D010149:Postoperative Pain / Q000145:classification / Q000209:etiology; D011446:Prospective Studies; D013246:Sterilization, Tubal / Q000295:instrumentation*; D011795:Surveys and Questionnaires