A Prospective Evaluation of Ultrasonic Dissector Plus Harmonic Scalpel in Liver Resection

Arru, Marcella; Pulitanò, Carlo; Aldrighetti, Luca; Catena, Marco; Finazzi, Renato; Ferla, Gianfranco
March 2007
American Surgeon;Mar2007, Vol. 73 Issue 3, p256
Academic Journal
Several techniques have been described for safe dissection of the liver parenchyma. The aim of this study was to evaluate the feasibility and effectiveness of combining two different electronic devices, the ultrasonic dissector and the harmonic scalpel, during hepatic resection. One hundred consecutive patients who underwent liver resection between January and December 2004 were enclosed in the study. Patients requiring concomitant colic resection or biliary-enteric anastomosis were excluded from the study. Operative variables (type of procedure, operating time, Pringle time, blood losses, transfusions, and histological tumor exposure at the transection surface), hospital stay, and complications were recorded. The extent of hepatic resection was a minor resection in 31 and major in 69 cases. Median blood loss was 500 mL (range, 100-2000 mL) and the Pringle maneuver was used in 58 patients. Median operative time was 367 minutes (range, 150-660 minutes). Hepatic resection was performed in 32 cirrhotic livers. Surgical complications included one postoperative hemorrhage and two bile leaks. The overall morbidity and mortality rate was 14 and 1 per cent, respectively. In conclusion, the combined use of these electronic devices allows liver resection to be safely performed, even in cirrhotic patients, with the advantage of reducing surgical complications. A prospective randomized trial is needed to clarify the clinical benefits of liver resections performed combining these two devices.


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