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Endoscopic Examinations of the Biliary and Pancreatic Ducts: Sixth Report: A Study on the Development of a Fiberoptic Choledochoscope with the Irrigation Tube A. Nishimura 1 , Y. Otsubo 1 , N. Den 1 , H. Sate 1 1Second Surgical Department, School of Medicine, Chiba University pp.485-492
Published Date 1971/4/25
DOI https://doi.org/10.11477/mf.1403111598
  • Abstract
  • Look Inside

 As a method of endoscopy of the biliary tract in the midst of operation, the authors in the past exploited a choledochofiberscope with a balloon equipped at its distal tip, and have published the results of its clinical applications. In this paper is introduced a far improved choledochofiberscope manufactured for trial (CHF N0. 6) employing irrigation tube. Its characteristics, setup and directions for its use are described.

 Although the new fiiberscope resorts to irrigation fluid the same as with irrigation methods hithereto used, an irrigation tube similar to tracheal tube is now employed to prevent fluid from leaking into the abdominal cavity so that dilatation of the biliary tract is all the more ensured. The fluid flowing within a irrigation circuit does not pollute the field of operation, and biliary sands and mud as well as pus within the biliary tract are washed away and discharged. Irrigation fluid is utilized as well for cytological diagnosis and bacilloscopy.

 Directions for its use are simple and the procedure does not take much time. Less than 1,000 ml of fluid is sufficient for observation of the biliary tract lumen alone. There is no surface glare so harassing to the examiner in the baloon-tip method, and since it is not a contact view, wider field of observation is assured. Besides, the biliary tract mucosa as it is unstained by the bile is to be observed.

 The authors now employ this method by preference in the observation of the lumen of the biliary tract. When co-employed with choledochography during operation, this method is assuredly a very eflicient procedure in the diagnosis and differential diagnosis in diseases of the liver and biliary tract.

 Endoscopic pictures of several representative cases of inflammations, gallstones and tumors of the biliary tract as visualized by this method are also presented. Stress is laid on the fact that in cases of tumor cytological diagnosis of fluid contents collected during the operation plays a very important role in the accurate diagnosis of a neoplasm.


Copyright © 1971, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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