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Takahiro Nakazawa 2 Articles
Endoscopic Approach via the Minor Papilla for the Treatment of Pancreatic Stones
Takahiro Nakazawa, Kazuki Hayashi, Itaru Naitoh, Fumihiro Okumura, Takashi Joh
Clin Endosc 2012;45(3):189-193.   Published online August 22, 2012
AbstractAbstract PDFPubReaderePub

We aimed to evaluate whether the advanced techniques have influenced the minor papilla approach.


We studied the success rate of guide wire insertion by using ordinary techniques and advanced techniques (rendezvous method and precut method) in 30 patients via the minor papilla. We compared the selection of the access routes between before (52 patients) and after (28 patients) the introduction of the Soehendra stent retriever.


In 19 out of 30 patients (63%), guide wire insertion via the minor papilla could be achieved by using ordinary techniques. In total, the guide wire could be inserted in 27 patients (90%) by using the advanced techniques. Before introduction of the Soehendra stent retriever, the major papilla approach was chosen in 38 cases (73%), and the minor papilla approach in 14 cases (27%). After introduction of the Soehendra stent retriever, the major papilla approach was used in 26 cases (93%) and the minor papilla in 2 cases (7%). The frequency of selecting the minor papilla approach has significantly decreased (p<0.05).


The advanced techniques have contributed to the improvement of endoscopic approaches via the minor papilla, and decreased the frequency of selecting the minor papilla approach.


Citations to this article as recorded by  
  • Efficacy of pancreatic stenting prior to extracorporeal shock wave lithotripsy for pancreatic stones
    Hiromu Kondo, Itaru Naitoh, Hirotaka Ohara, Takahiro Nakazawa, Kazuki Hayashi, Fumihiro Okumura, Katsuyuki Miyabe, Shuya Shimizu, Yuji Nishi, Michihiro Yoshida, Hiroaki Yamashita, Shuichiro Umemura, Yasuki Hori, Akihisa Kato, Takashi Joh
    Digestive and Liver Disease.2014; 46(7): 639.     CrossRef
  • 5,606 View
  • 46 Download
  • 1 Crossref
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Usefulness of Intraductal Ultrasonography in the Diagnosis of Cholangiocarcinoma and IgG4-Related Sclerosing Cholangitis
Takahiro Nakazawa, Itaru Naitoh, Kazuki Hayashi
Clin Endosc 2012;45(3):331-336.   Published online August 22, 2012
AbstractAbstract PDFPubReaderePub

The technique of intraductal ultrasonography (IDUS) of the bile duct with a thin-caliber probe and a ropeway system has provided excellent images of the bile duct and periductal structures and is an easy transpapillary approach. In addition, once the guide wire is inserted into the bile duct, IDUS and transpapillary biopsy after endoscopic retrograde cholangiopancreatography can be performed in a single session. Here, we review the usefulness of IDUS in the diagnosis of cholangiocarcinoma and IgG4-related sclerosing cholangitis.


Citations to this article as recorded by  
  • Mimickers of immunoglobulin G4-related hepatobiliary disease on biopsy
    Byoung Uk Park, Hee Eun Lee, Lizhi Zhang
    Seminars in Diagnostic Pathology.2024; 41(2): 95.     CrossRef
  • IgG4-related sclerosing cholangitis overlapping with autoimmune hepatitis: Report of a case
    Hongyan Li, Li Sun, David R. Brigstock, Lina Qi, Runping Gao
    Pathology - Research and Practice.2017; 213(5): 565.     CrossRef
  • Percutaneous transluminal forceps biopsy in patients suspected of having malignant biliary obstruction: factors influencing the outcomes of 271 patients
    Jung Gu Park, Gyoo-Sik Jung, Jong Hyouk Yun, Byung Chul Yun, Sang Uk Lee, Byung Hoon Han, Ji Ho Ko
    European Radiology.2017; 27(10): 4291.     CrossRef
  • IgG4-related sclerosing cholangitis and chronic sclerosing sialadenitis mimicking cholangiocarcinoma and neck malignancy
    Li Sun, Hong-Yan Li, David R Brigstock, Run-Ping Gao
    Hepatobiliary & Pancreatic Diseases International.2017; 16(4): 443.     CrossRef
  • Two cases of immunoglobulin G4-related sclerosing cholangitis in which transabdominal ultrasonography was useful in diagnosis and follow-up observation
    Ikuhiro Kobori, Toshikuni Suda, Akihiro Nakamoto, Hiroki Saito, Osamu Okawa, Rion Sudo, Yoshinori Gyotoku, Yasumi Katayama, Masaya Tamano
    Journal of Medical Ultrasonics.2016; 43(2): 271.     CrossRef
  • IgG4-related hepatobiliary disease: an overview
    Emma L. Culver, Roger W. Chapman
    Nature Reviews Gastroenterology & Hepatology.2016; 13(10): 601.     CrossRef
  • UEG Week 2016 Oral Presentations

    United European Gastroenterology Journal.2016; 4(5_suppl): A1.     CrossRef
  • Immunoglobulin G4–Related Sclerosing Cholangitis Mimicking Hilar Cholangiocarcinoma Diagnosed With Following Bile Duct Resection: Report of a Case
    Atsushi Miki, Yasunaru Sakuma, Hideyuki Ohzawa, Yukihiro Sanada, Hideki Sasanuma, Alan T. Lefor, Naohiro Sata, Yoshikazu Yasuda
    International Surgery.2015; 100(3): 480.     CrossRef
  • Endoscopic diagnosis of cholangiocarcinoma: From endoscopic retrograde cholangiography to bile proteomics
    Torsten Voigtländer, Tim O. Lankisch
    Best Practice & Research Clinical Gastroenterology.2015; 29(2): 267.     CrossRef
  • 7,346 View
  • 85 Download
  • 9 Crossref
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