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Updated: Jul 2, 2026
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Techniques of Laparoscopic Right Posterior Sectionectomy: Glissonian Approach and a Parenchymal Transection Technique
Published on: October 6, 2023
Open hepatic parenchymal transection using ultrasonic dissection and bipolar coagulation
Mickael Lesurtel1, Jacques Belghiti
1Department of HPB Surgery, Beaujon Hospital (Assistance Publique-Hôpitaux de Paris) University Paris 7 Denis Diderot, Clichy, France.
Summary
Ultrasonic dissection (UD) is a safe and effective liver transection method, comparable to other techniques in blood loss and patient outcomes. While more expensive, UD offers precision in vessel dissection, making it a standard for liver surgery.
Area of Science:
- Hepatobiliary Surgery
- Surgical Technology
- Minimally Invasive Procedures
Background:
- Liver transection is a critical and high-risk step in liver resection.
- Massive blood loss during transection increases morbidity, mortality, and reduces long-term survival.
- Various devices exist for parenchyma transection, each with unique advantages and disadvantages.
Purpose of the Study:
- To compare the efficacy and safety of ultrasonic dissection (UD) with other liver transection techniques.
- To evaluate blood loss, resection time, precision, morbidity, and hospital stay associated with UD.
- To assess the economic implications of using UD in liver surgery.
Main Methods:
- Systematic review and meta-analysis of four retrospective comparative studies and three randomized controlled trials.
- Comparison of ultrasonic dissector (UD) against clamp crushing technique and water-jet dissection.
- Analysis of outcomes including blood loss, operative time, vessel dissection precision, postoperative morbidity, and hospital stay.
Main Results:
- UD demonstrates similar blood loss and slower resection times compared to water-jet or clamp crushing techniques.
- UD offers enhanced precision in dissecting blood vessels.
- No significant difference in patient morbidity or hospital stay was observed between UD and other methods.
- UD is the most expensive technique, potentially limiting its use in low-volume centers.
Conclusions:
- Ultrasonic dissection with bipolar cautery is a safe and efficient standard technique for liver transection.
- While its superiority over the clamp crushing technique requires further establishment, UD provides precise vessel dissection.
- The cost-effectiveness of UD may be a consideration for resource-limited settings.
