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Related Experiment Video

Updated: Apr 19, 2026

Rat Model of the Associating Liver Partition and Portal Vein Ligation for Staged Hepatectomy ALPPS Procedure
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Saline-filled laparoscopic surgery: A basic study on partial hepatectomy in a rabbit model.

Masanari Shimada1, Masahiko Kawaguchi, Norihiko Ishikawa

  • 1Department of General and Cardiothoracic Surgery, Kanazawa University School of Medicine , Kanazawa , Japan.

Minimally Invasive Therapy & Allied Technologies : MITAT : Official Journal of the Society for Minimally Invasive Therapy
|December 27, 2014
PubMed
Summary
This summary is machine-generated.

Saline-filled laparoscopic surgery (SAFLS) offers a feasible alternative to carbon dioxide (CO2) pneumoperitoneum for liver resections. This novel approach provides clear visualization and effective bleeding control without adverse effects on patient vitals or inflammatory markers.

Keywords:
Laparoscopic surgeryhepatectomyrabbit modelresectoscopesaline

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Area of Science:

  • Minimally Invasive Surgery
  • Surgical Oncology
  • Laparoscopic Techniques

Background:

  • Carbon dioxide (CO2) pneumoperitoneum in laparoscopic surgery poses risks to malignant cells and negatively impacts cardiopulmonary function.
  • Limited understanding exists regarding CO2 pneumoperitoneum's effects on cancer cells during surgery.

Purpose of the Study:

  • To evaluate the technical feasibility of saline-filled laparoscopic partial hepatectomy (LPH) as a novel alternative to CO2 pneumoperitoneum.
  • To compare the safety and efficacy of saline-filled LPH versus CO2 pneumoperitoneum LPH in a rabbit model.

Main Methods:

  • Twelve LPH procedures were conducted in rabbits, divided into two groups: CO2 pneumoperitoneum with an ultrasonic device and saline-filled environment using a bipolar resectoscope (RS).
  • Key metrics included resection time, fluid consumption, vital signs, blood gas analysis, complication rates, and levels of interleukin-1 beta (IL-1β) and C-reactive protein (CRP).
  • Pathological examination assessed the effectiveness of the resections.

Main Results:

  • LPH was successfully performed in all rabbits, with saline-filled laparoscopy providing clear visualization through irrigation and effective bleeding control via RS coagulation.
  • No significant differences were observed in perioperative values, IL-1β, or CRP levels between the CO2 and saline groups.
  • Pathological analysis confirmed effective coagulation and regeneration of resected lesions in the saline group, comparable to the CO2 group.

Conclusions:

  • Saline-filled laparoscopic surgery (SAFLS) is a technically feasible approach for partial hepatectomy.
  • SAFLS offers advantages such as improved surgical field visualization via irrigation and precise identification of bleeding sources.
  • This method presents a viable alternative to CO2 pneumoperitoneum, potentially mitigating its associated risks.