title: Randomized trial of traditional dissection with electrocautery versus ultrasonic fundus-first dissection in patients undergoing laparoscopic cholecystectomy.
abstract: BACKGROUND
  In laparoscopic cholecystectomy dissection can be with monopolar electrocautery or with ultrasonic shears, and can start at the triangle of Calot or at the fundus of the gallbladder.
  
  
  METHODS
  Thirty-seven patients undergoing laparoscopic cholecystectomy were randomized to electrocautery dissection from the triangle of Calot and 43 to fundus-first dissection with ultrasonic shears. All procedures were strictly standardized, and patients and their postoperative carers were blinded to the operation performed.
  
  
  RESULTS
  Ultrasonic fundus-first dissection was associated with a shorter duration of operation (mean 46 versus 61 min), fewer overnight hospital stays (two versus eight), lower pain scores 4 and 24 h after surgery, less nausea at 2, 4 and 24 h, and a shorter period of sick leave (mean 5.5 versus 9.3 days) compared with electrocautery from the triangle of Calot.
  
  
  CONCLUSIONS
  Ultrasonic fundus-first dissection during laparoscopic cholecystectomy was quicker and associated with less nausea and pain than electrocautery dissection from the triangle of Calot.
authors.affiliation: Department of Surgery, Sundsvalls sjukhus, Sweden. Yucel.Cengiz@lvn.se
authors.forename: Y
authors.initials: Y
authors.lastname: Cengiz
authors.forename: A
authors.initials: A
authors.lastname: Jänes
authors.forename: A
authors.initials: A
authors.lastname: Grehn
authors.forename: L A
authors.initials: LA
authors.lastname: Israelsson
mesh_terms: D000328:Adult; D017081:Cholecystectomy, Laparoscopic / Q000379:methods*; D002769:Cholelithiasis / Q000601:surgery*; D004210:Dissection / Q000379:methods*; D004564:Electrocoagulation / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D014464:Ultrasonic Therapy / Q000379:methods*