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A Two-Step Method for Percutaneous Transhepatic Choledochoscopic Lithotomy
Published on: September 13, 2022
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New surgical technique for pancreatic lithotripsy without coring-out
Tatsuaki Sumiyoshi1, Kenichiro Uemura2, Naru Kondo2
1Department of Surgery, Graduate School of Biomedical and Health Science, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan. umk@hiroshima-u.ac.jp.
Clinical Journal of Gastroenterology
|September 3, 2020
Summary
The Frey procedure is effective for chronic pancreatitis but carries risks. A new laparoscopic technique using coagulation shear avoids coring-out, potentially reducing complications for pancreas stone treatment.
Area of Science:
- Gastroenterology and Surgical Innovation
- Minimally Invasive Surgery
Background:
- The Frey procedure is the standard surgical treatment for chronic pancreatitis with pancreas head stones.
- It offers high long-term pain relief (around 90%) but involves coring-out, risking severe complications like bile duct injury and pancreatic fistula.
Purpose of the Study:
- To introduce and evaluate a novel, less invasive lithotripsy technique for chronic pancreatitis.
- To potentially mitigate the risks associated with the traditional coring-out method in the Frey procedure.
Main Methods:
- Development of a new laparoscopic technique utilizing coagulation shear for pancreatic stone removal.
- This technique avoids the extensive coring-out of the pancreatic head.
Main Results:
- The new technique aims to achieve similar therapeutic benefits to the Frey procedure.
- It is designed to significantly reduce the incidence of severe postoperative complications.
Conclusions:
- This innovative laparoscopic coagulation shear technique offers a promising alternative to the traditional Frey procedure.
- It may provide a safer approach for managing chronic pancreatitis with pancreas head stones.

