Journal of Gastric Cancer

The Korean Gastric Cancer Association (대한위암학회)
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Pancreatic Compression during Lymph Node Dissection in Laparoscopic Gastrectomy: Possible Cause of Pancreatic Leakage

  • Ida, Satoshi (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research) ;
  • Hiki, Naoki (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research) ;
  • Ishizawa, Takeaki (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research) ;
  • Kuriki, Yugo (Laboratory of Chemistry and Biology, Graduate School of Pharmaceutical Sciences, The University of Tokyo) ;
  • Kamiya, Mako (Laboratory of Chemical Biology and Molecular Imaging, Graduate School of Medicine, The University of Tokyo) ;
  • Urano, Yasuteru (Laboratory of Chemistry and Biology, Graduate School of Pharmaceutical Sciences, The University of Tokyo) ;
  • Nakamura, Takuro (Division of Carcinogenesis, Cancer Institute, Japanese Foundation for Cancer Research) ;
  • Tsuda, Yasuo (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research) ;
  • Kano, Yosuke (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research) ;
  • Kumagai, Koshi (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research) ;
  • Nunobe, Souya (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research) ;
  • Ohashi, Manabu (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research) ;
  • Sano, Takeshi (Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research)
  • Received : 2018.04.06
  • Accepted : 2018.05.26
  • Published : 2018.06.30
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Abstract

Purpose: Postoperative pancreatic fistula is a serious and fatal complication of gastrectomy for gastric cancer. Blunt trauma to the parenchyma of the pancreas can result from an assistant's forceps compressing and retracting the pancreas, which in turn may result in pancreatic juice leakage. However, no published studies have focused on blunt trauma to the pancreas during laparoscopic surgery. Our aim was to investigate the relationship between compression of the pancreas and pancreatic juice leakage in a swine model. Materials and Methods: Three female pigs were used in this study. The pancreas was gently compressed dorsally for 15 minutes laparoscopically with gauze grasped with forceps. Pancreatic juice leakage was visualized by fluorescence imaging after topical administration of chymotrypsin-activatable fluorophore in real time. Amylase concentrations in ascites collected at specified times was measured. In addition, pancreatic tissue was fixed with formalin, and the histology of the compressed sites was evaluated. Results: Fluorescence imaging enabled visualization of pancreatic juice leaking into ascites around the pancreas. Median concentrations of pancreatic amylase in ascites increased from 46 U/L preoperatively to 12,509 U/L 4 hours after compression. Histological examination of tissues obtained 4 hours after compression revealed necrotic pancreatic acinar cells extending from the surface to deep within the pancreas and infiltration of inflammatory cells. Conclusions: Pancreatic compression by the assistant's forceps can contribute to pancreatic juice leakage. These findings will help to improve the procedure for lymph node dissection around the pancreas during laparoscopic gastrectomy.

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