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Efficacy of mapping biopsy using a novel sheath system for the histological diagnosis of superficial ductal spread in distal cholangiocarcinoma: A retrospective multicenter study.
J Hepatobiliary Pancreat Sci
January 2025
First Department of Internal Medicine, Gifu University Hospital, Gifu, Japan.
Background: Mapping biopsy (MB) can evaluate superficial ductal spread (SDS) through the histopathological diagnosis of cholangiocarcinoma, enabling the selection of an appropriate surgical procedure. This retrospective study evaluated the efficacy of MB using a novel sheath system in distal cholangiocarcinoma (dCCA) cases.
Methods: A total of 199 cholangiocarcinoma cases underwent preoperative diagnosis.
Innovative use of a 3-Fr microcatheter for precision guidewire placement with digital single-operator cholangioscopy for pancreaticobiliary drainage (with video).
Sci Rep
December 2024
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku Nagoya, Nagoya, Aichi, 467-8601, Japan.
Biliary and pancreatic tract stenosis are hallmark symptoms in pancreaticobiliary diseases, transcending malignancy. Endoscopic techniques are pivotal for biliary/pancreatic drainage; however, challenging scenarios arise when attempting to pass a guidewire (GW) through obstruction. Cholangioscopy-assisted GW placement has proven valuable, but challenges persist in its execution, particularly in maneuvering the GW through cholangioscopy.
View Article and Find Full Text PDFEffectiveness of cholangioscopy guided biopsy versus ERCP guided brushings in diagnosing malignant biliary strictures.
Surg Endosc
December 2024
University of South Carolina School of Medicine Greenville, Greenville, SC, USA.
Background: Evaluation of lesions of the biliary tract are essential to diagnose given the dismal outcomes of cholangiocarcinoma. Historically, these diagnoses were made using brush biopsies obtained under Endoscopic Retrograde Cholangiopancreatography (ERCP). To increase the accuracy of biliary biopsies, SpyGlassTM Discover cholangioscopy guided biopsy has been developed, providing greater tissue yield and direct visualization of the biliary epithelium.
View Article and Find Full Text PDFDirectional movement guide for digital single-operator cholangioscopy system.
VideoGIE
December 2024
Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Hangzhou, China.
Structural or functional abnormality of sphincter of Oddi: an important factor for the recurrence of choledocholithiasis after endoscopic treatment.
Ann Med
December 2025
Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China.
A high recurrence rate is undesirable after treatment of common bile duct (CBD) stones. A major risk factor identified for recurrence is that invasive techniques, including surgical or endoscopic treatments, will impair the biliary tract system either by direct incision of the CBD or by cutting or dilating the ampulla of Vater. During endoscopic treatment, two main assisted methods for lithotomy, sphincterotomy and papillary balloon dilation, can result in different degrees of damage to the structure and function of the sphincter of Oddi (SO), contributing to slowing of biliary excretion, cholestasis, biliary bacterial infection, and promotion of bile duct stone recurrence.
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