title: Harmonic scalpel for tonsillectomy.
abstract: OBJECTIVE
  To describe the Harmonic scalpel and review recent studies comparing its use in tonsillectomy with standard dissection and electrocautery.
  
  
  METHODS
  Review.
  
  
  METHODS
  The Harmonic scalpel uses ultrasonic technology to cut and coagulate tissues at lower temperatures than those associated with electrocautery and lasers. Studies of the use of this device have assessed its performance with respect to intraoperative blood loss, postoperative hemorrhage, and postoperative pain.
  
  
  RESULTS
  Intraoperative blood loss and episodes of postoperative hemorrhages have been found to be minimal in patients in whom the Harmonic scalpel was used for tonsillectomy. The device also appears to be associated with a reduction in postoperative pain.
  
  
  CONCLUSIONS
  Use of the Harmonic scalpel for tonsillectomy may have several advantages over standard methods.
authors.affiliation: Children's Hospital of Alabama, Birmingham, Alabama 35233, USA. Brian.Wiatrak@chsys.org
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Wiatrak
authors.forename: J Paul
authors.initials: JP
authors.lastname: Willging
mesh_terms: D002648:Child; D002675:Child, Preschool; D004564:Electrocoagulation / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D010149:Postoperative Pain / Q000517:prevention & control; D019106:Postoperative Hemorrhage / Q000517:prevention & control; D012680:Sensitivity and Specificity; D013525:Surgical Instruments; D014068:Tonsillectomy / Q000295:instrumentation* / Q000379:methods; D016896:Treatment Outcome; D014464:Ultrasonic Therapy / Q000379:methods