From: The HAC trial (harmonic for acute cholecystitis): a randomized, double-blind, controlled trial comparing the use of harmonic scalpel to monopolar diathermy for laparoscopic cholecystectomy in cases of acute cholecystitis
H-mediated VLC
MD-mediated VLC
(21 patients)
Overall conversion rate
1
7
Distortion of Calot’s triangle anatomy
2
Excessive bleeding
-
3
Time of surgery exceeding two hours