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Related Experiment Video

Updated: Mar 21, 2026

Laparoscopic Choledochal Cyst Excision and Roux-en-Y Choledochojejunostomy in Adults
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The rat choledochojejunostomy model for microsurgical training.

Jun Suh Lee1, Tae Ho Hong2

  • 1Department of Surgery, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea.

Annals of Surgical Treatment and Research
|May 18, 2016
PubMed
Summary
This summary is machine-generated.

A rat choledochojejunostomy (CJ) model is feasible for training general surgeons in microsurgery. This introductory surgical training model demonstrated improved efficiency and reduced complications with experience.

Keywords:
CholedochostomyGeneral surgeryMicrosurgeryRats

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Area of Science:

  • Surgical training and education
  • Microsurgery techniques
  • Animal models in research

Background:

  • Microsurgery requires specialized skills and extensive training.
  • Developing accessible and effective training models is crucial for surgical education.
  • Choledochojejunostomy (CJ) is a complex procedure requiring fine motor skills.

Purpose of the Study:

  • To investigate the feasibility of a rat model for practicing choledochojejunostomy (CJ).
  • To evaluate the utility of this model as an introductory microsurgery training tool for general surgeons.

Main Methods:

  • Roux-en-Y CJ was performed on 20 rats using 10-0 prolene sutures.
  • Animals were observed for 7 days post-surgery before examination.
  • Rats were divided into two groups based on surgical order to assess learning curve.

Main Results:

  • Surgical time for CJ significantly decreased from 36.2 minutes in group 1 to 29.4 minutes in group 2 (P = 0.015).
  • Bile leakage rate improved from 40% in group 1 to 10% in group 2.
  • Mean survival time increased from 5.4 days to 7 days (P = 0.049), indicating improved outcomes with experience.

Conclusions:

  • The rat CJ model is a feasible and effective introductory training tool for microsurgery.
  • This model allows surgeons to develop essential skills for complex procedures.
  • The study highlights the benefits of a structured training approach using animal models.