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Direct Insertion of a Short-Type Single-Balloon Enteroscope and Using a Stent Retriever to Treat Difficult Bile Duct Stones in Surgically Altered Anatomy

Sasaki T, Sasahira N

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Blind Spot of Enteral Stenting for Malignant Duodenal Obstruction due to Colon Cancer: A Rare Case of Duodenocolonic Fistula

Sasaki T, Mie T, Sasahira N

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Rotatable sphincterotome as a rescue device for endoscopic retrograde cholangiopancreatography cannulation: a single-center experience

Okamoto T, Sasaki T, Takeda T, Mie T, Mori C, Furukawa T, Yamada Y, Kasuga A, Matsuyama M, Ozaka M, Sasahira N

Background/Aims: Selective bile duct or pancreatic duct cannulation remains a significant initial hurdle in endoscopic retrograde cholangiopancreatography (ERCP) despite advances in endoscopy and accessories. This study evaluated our experience with...
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Risk factors for recurrent stenosis after balloon dilation for benign hepaticojejunostomy anastomotic stricture

Mie T, Sasaki T, Okamoto T, Takeda T, Mori C, Yamada Y, Furukawa T, Kasuga A, Matsuyama M, Ozaka M, Sasahira N

Background/Aims: Hepaticojejunostomy anastomotic stricture (HJAS) is a feared adverse event associated with hepatopancreatobiliary surgery. Although balloon dilation for benign HJAS during endoscopic retrograde cholangiopancreatography with balloon-assisted enteroscopy has been reported...
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Simultaneous Duodenal Metal Stent Placement and EUS-Guided Choledochoduodenostomy for Unresectable Pancreatic Cancer

Kawakubo K, Isayama H, Nakai Y, Sasahira N, Kogure H, Sasaki T, Hirano K, Tada M, Koike K

  • KMID: 2053506
  • Gut Liver.
  • 2012 Jul;6(3):399-402.
Patients with pancreatic cancer frequently suffer from both biliary and duodenal obstruction. For such patients, both biliary and duodenal self-expandable metal stent placement is necessary to palliate their symptoms, but...
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Comparison of tube-assisted mapping biopsy with digital single-operator peroral cholangioscopy for preoperative evaluation of biliary tract cancer

Takeda T, Sasaki T, Mie T, Okamoto T, Mori C, Furukawa T, Yamada Y, Kasuga A, Matsuyama M, Ozaka M, Sasahira N

Background/Aims: Digital single-operator cholangioscopy (DSOC)-guided mapping biopsy (DMB) and tube-assisted mapping biopsy (TMB) are two techniques used for preoperative evaluation of biliary tract cancer (BTC). However, data regarding the diagnostic...
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Comparison of Endoscopic Ultrasound-Guided Tissue Acquisition Using a 20-Gauge Menghini Needle with a Lateral Forward Bevel and a 22-Gauge Franseen Needle: A Single-Center Large Cohort Study

Mie T, Sasaki T, Kanata R, Furukawa T, Takeda T, Kasuga A, Matsuyama M, Ozaka M, Sasahira N

Background/Aims: Several fine-needle biopsy (FNB) needles are available for endoscopic ultrasound (EUS)-guided tissue acquisition. However, there is disagreement on which type of needle has the best diagnostic yield. The aim...
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Evaluation of the mechanical properties of current biliary self-expandable metallic stents: axial and radial force, and axial force zero border

Yamagata W, Fujisawa T, Sasaki T, Ishibashi R, Saito T, Yoshida S, No S, Inoue K, Nakai Y, Sasahira N, Isayama H

Background/Aims: Mechanical properties (MPs) and axial and radial force (AF and RF) may influence the efficacy and complications of self-expandable metallic stent (SEMS) placement. We measured the MPs of various...
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Total Cholesterol Level for Assessing Pancreatic Insufficiency Due to Chronic Pancreatitis

Hirano K, Saito T, Mizuno S, Tada M, Sasahira N, Isayama H, Matsukawa , Umefune G, Akiyama D, Saito K, Kawahata S, Takahara N, Uchino R, Hamada T, Miyabayashi K, Mohri D, Sasaki T, Kogure H, Yamamoto N, Nakai Y, Koike K

BACKGROUND/AIMS: To determine the nutritional markers important for assessing the degree of pancreatic insufficiency due to chronic pancreatitis in routine clinical practice. METHODS: A total of 137 patients with chronic pancreatitis...
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A Novel, Fully Covered Laser-Cut Nitinol Stent with Antimigration Properties for Nonresectable Distal Malignant Biliary Obstruction: A Multicenter Feasibility Study

Isayama H, Kawakubo K, Nakai Y, Inoue K, Gon C, Matsubara , Kogure H, Ito Y, Tsujino T, Mizuno S, Hamada T, Uchino R, Miyabayashi K, Yamamoto K, Sasaki T, Yamamoto N, Hirano K, Sasahira N, Tada M, Koike K

  • KMID: 1712334
  • Gut Liver.
  • 2013 Nov;7(6):725-730.
BACKGROUND/AIMS: Stent migration occurs frequently, but the prevention of complications resulting from covered self-expandable metal stents (C-SEMSs) remains unresolved. We prospectively assessed a newly developed C-SEMS, a modified covered Zeo...
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