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A canine model of laparoscopic segmental liver resection
Marcel Autran C Machado1, Flávio H F Galvão, Eduardo Pompeu
1Department of Surgery, University of São Paulo, Brazil. dr@drmarcel.com.br
Summary
This study establishes a laparoscopic left liver segmentectomy technique in dogs, offering a new experimental model for surgical training and research into metabolic changes following liver resection.
Area of Science:
- Veterinary Surgery
- Surgical Oncology
- Animal Models
Background:
- Laparoscopic hepatectomy shows promise for liver tumors but lacks established animal models.
- The dog is a valuable research animal, yet laparoscopic hepatectomy models are not well-developed.
Purpose of the Study:
- To describe a laparoscopic left liver segmentectomy technique in dogs.
- To present preliminary results of this surgical procedure in a canine model.
Main Methods:
- Female dogs (>15 kg) underwent laparoscopic left liver segmentectomy using four abdominal incisions.
- The procedure involved mobilization, vascular pedicle clamping, parenchyma division, and specimen removal.
- Surgical time averaged 40 minutes.
Main Results:
- The described laparoscopic technique was successfully performed with minimal bleeding.
- Dogs showed normal clinical evolution and weight gain over a 3-month follow-up.
- No complications related to the hepatic resection were observed.
Conclusions:
- Laparoscopic left hepatectomy in dogs is a viable surgical procedure.
- This model can be utilized for surgical training and preclinical research in liver surgery.