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Updated: Mar 28, 2026

Application of Laparoscopic Ultrasonography in Primary Choledochal Suture during Combined Two-lens Surgery
Published on: March 28, 2025
Day-care laparoscopic cholecystectomy with diathermy hook versus fundus-first ultrasonic dissection: a randomized
Anne Mattila1, Johanna Mrena2, Hannu Kautiainen3
1Department of Surgery, Central Hospital of Central Finland, Keskussairaalantie 19, 40620, Jyväskylä, Finland. anne.mattila@ksshp.fi.
Background And Aim:
To examine the impact of day-care laparoscopic cholecystectomy (LC) with ultrasonic scissors dissection versus diathermy hook dissection method in a randomized setting.
Methods:
From April 2012 to September 2014, a total of 169 elective day-care patients were randomized to undergo either laparoscopic cholecystectomy with ultrasonic scissors using fundus-first approach (n = 88) or diathermy hook dissection starting from the triangle of Calot (n = 79). Main measures of outcome were operative time, same-day discharge and intraoperative complications. Secondary outcome measures were postoperative pain (numeric rating scale), postoperative nausea and vomiting (PONV), readmissions and 30-day morbidity.
Results:
Median operative time was similar in the ultrasonic dissection and diathermy hook dissection groups (45 vs 45 min, p = 0.95). Same-day discharge was possible in 77 patients (87 %) in the ultrasonic dissection group and in 69 patients (87 %) in the diathermy group, p = 0.98. Intraoperative gallbladder perforations, mean intraoperative bleeding, postoperative pain and PONV at 1, 2 and 4 h (p = 0.78) did not differ significantly between the study groups.
Conclusion:
Day-care LC using either diathermy hook or ultrasonic dissection resulted in excellent same-day discharge in both groups (87 %). LC with ultrasonic dissection does not offer any clinical advantages compared to diathermy dissection.

