title: Microscopic tonsillectomy: a double-blind randomized trial.
abstract: OBJECTIVE
  To evaluate microsurgical bipolar cautery tonsillectomy (TEmic) by comparing it with traditional blunt dissection tonsillectomy (TEtrad).
  
  
  METHODS
  A double-blind prospective randomized trial with stratification in two age groups.
  
  
  METHODS
  200 consecutive patients undergoing tonsillectomy for tonsillar hypertrophy, or recurrent or chronic tonsillitis.
  
  
  METHODS
  Duration of surgery, intraoperative bleeding, daily postoperative pain and otalgia, postoperative bleeding episodes.
  
  
  METHODS
  Duration of surgery and operative bleeding were evaluated by the anesthesiologist. The patients were instructed to record daily pain and otalgia. Final postoperative evaluation was done by a different physician, blinded to the surgical technique.
  
  
  RESULTS
  Mean intraoperative bleeding was 12 ml for TEmic and 36 ml for TEtrad (P < 0.001). Mean duration of surgery was 37 minutes for TEmic and 36 minutes for TEtrad (NS). Otalgia was present in 41% of TEmic patients and 69% of TEtrad patients (p < 0.001). Daily postoperative pain was lower in the TEmic group than it was in the TEtrad group for the entire study period (10 days). Postoperative hemorrhage was present in three TEmic patients (3%) and in eight TEtrad patients (8%), a difference that did not reach significance (p > 0.1).
  
  
  CONCLUSIONS
  Microsurgical bipolar cautery tonsillectomy compares favorably with traditional techniques in terms of intraoperative bleeding, postoperative pain, otalgia, and hemorrhage. This technique combines the hemostatic advantage of cautery dissection, the excellent visualization achieved by a microscope, and, with the use of a video, greatly improves the physician's ability to teach how to perform a tonsillectomy.
authors.affiliation: Division of Head and Neck Surgery, University Canton Hospital of Geneva, Switzerland.
authors.forename: O
authors.initials: O
authors.lastname: Kujawski
authors.forename: P
authors.initials: P
authors.lastname: Dulguerov
authors.forename: C
authors.initials: C
authors.lastname: Gysin
authors.forename: W
authors.initials: W
authors.lastname: Lehmann
mesh_terms: D001688:Biological Products / Q000494:pharmacology*; D002648:Child; D004311:Double-Blind Method; D004433:Earache / Q000209:etiology; D006488:Hemostasis, Surgical; D006801:Humans; D007431:Intraoperative Complications; D008866:Microsurgery / Q000379:methods; D010149:Postoperative Pain; D010446:Peptide Fragments; D010455:Peptides / Q000494:pharmacology*; D011183:Postoperative Complications; D019106:Postoperative Hemorrhage; D011446:Prospective Studies; D014068:Tonsillectomy / Q000379:methods*
chemical_list: D001688:Biological Products; D010446:Peptide Fragments; D010455:Peptides; C109694:live yeast cell derivative