Skip Navigation
Skip to contents

Clin Endosc : Clinical Endoscopy

OPEN ACCESS

Search

Page Path
HOME > Search
6 "Masayuki Kitano"
Filter
Filter
Article category
Keywords
Publication year
Authors
Funded articles
Reviews
Endoscopic biliary drainage for distal bile duct obstruction due to pancreatic cancer
Masahiro Itonaga, Masayuki Kitano
Clin Endosc 2025;58(1):40-52.   Published online September 26, 2024
DOI: https://doi.org/10.5946/ce.2023.294
AbstractAbstract PDFPubReaderePub
Approximately 60% of pancreatic cancers occur in the pancreatic head and may present as obstructive jaundice due to bile duct invasion. Obstructive jaundice often leads to poor general conditions and acute cholangitis, interfering with surgery and chemotherapy and requiring biliary drainage. The first choice of treatment for biliary drainage is the endoscopic transpapillary approach. In unresectable tumors, self-expandable metal stents (SEMSs) are most commonly used and are classified into uncovered and covered SEMSs. Recently, antireflux metal stents and large- or small-diameter SEMSs have become commercially available, and their usefulness has been reported. Plastic stents are infrequently used in patients with resectable biliary obstruction; however, owing to the recent trend in preoperative chemotherapy, SEMSs are frequently used because of the long time to recurrent biliary obstruction. Endoscopic ultrasound-guided biliary drainage (EUS-BD) is often performed in patients who are not eligible for the transpapillary approach, and favorable outcomes have been reported. Different EUS-BD techniques and specialized stents have been developed and can be safely used in high-volume centers. The indications for EUS-BD are expected to further expand in the future.
  • 1,655 View
  • 271 Download
Close layer
Role of contrast-enhanced harmonic endoscopic ultrasonography (EUS) and EUS elastography in pancreatic lesions
Yasunobu Yamashita, Masayuki Kitano
Clin Endosc 2024;57(2):164-174.   Published online January 17, 2024
DOI: https://doi.org/10.5946/ce.2023.074
AbstractAbstract PDFPubReaderePub
Pancreatic cancers have a poor prognosis, and their incident rates have risen. Endoscopic ultrasonography (EUS) is an efficient and reliable diagnostic modality for pancreatic lesions, providing high spatial resolution. However, while EUS helps to detect minor pancreatic lesions, nearly all solid pancreatic lesions are hypoechoic, which creates difficulty in making differential diagnoses of pancreatic lesions. When diagnosing pancreatic lesions, the performance of image-enhanced EUS techniques is essential, such as EUS elastography or contrast-enhanced harmonic EUS (CH-EUS). CH-EUS diagnosis is based on assessing the vascularity of lesions, whereas tissue elasticity is measured via EUS elastography. Elastography is either strain or shear-wave, depending on the different mechanical properties being evaluated. The usefulness of enhanced EUS techniques is demonstrated in this review for the differential diagnosis of pancreatic lesions, including solid and cystic lesions, and pancreatic cancer staging.

Citations

Citations to this article as recorded by  
  • Endoscopic Contrast-Enhanced Ultrasound and Fine-Needle Aspiration or Biopsy for the Diagnosis of Pancreatic Solid Lesions: A Systematic Review and Meta-Analysis
    Giorgio Esposto, Giuseppe Massimiani, Linda Galasso, Paolo Santini, Raffaele Borriello, Irene Mignini, Maria Elena Ainora, Alberto Nicoletti, Lorenzo Zileri Dal Verme, Antonio Gasbarrini, Sergio Alfieri, Giuseppe Quero, Maria Assunta Zocco
    Cancers.2024; 16(9): 1658.     CrossRef
  • Endoscopic Ultrasound and Gastric Sub-Epithelial Lesions: Ultrasonographic Features, Tissue Acquisition Strategies, and Therapeutic Management
    Marzia Varanese, Marco Spadaccini, Antonio Facciorusso, Gianluca Franchellucci, Matteo Colombo, Marta Andreozzi, Daryl Ramai, Davide Massimi, Roberto De Sire, Ludovico Alfarone, Antonio Capogreco, Roberta Maselli, Cesare Hassan, Alessandro Fugazza, Alessa
    Medicina.2024; 60(10): 1695.     CrossRef
  • Endoscopic Ultrasound-Guided Pancreatic Tissue Sampling: Lesion Assessment, Needles, and Techniques
    Jahnvi Dhar, Jayanta Samanta, Zaheer Nabi, Manik Aggarwal, Maria Cristina Conti Bellocchi, Antonio Facciorusso, Luca Frulloni, Stefano Francesco Crinò
    Medicina.2024; 60(12): 2021.     CrossRef
  • 4,445 View
  • 265 Download
  • 3 Web of Science
  • 3 Crossref
Close layer
Original Article
Bispectral index-guided propofol sedation during endoscopic ultrasonography
Ayana Okamoto, Ken Kamata, Takeshi Miyata, Tomoe Yoshikawa, Rei Ishikawa, Tomohiro Yamazaki, Atsushi Nakai, Shunsuke Omoto, Kosuke Minaga, Kentaro Yamao, Mamoru Takenaka, Yasutaka Chiba, Toshiharu Sakurai, Naoshi Nishida, Masayuki Kitano, Masatoshi Kudo
Clin Endosc 2022;55(4):558-563.   Published online July 12, 2022
DOI: https://doi.org/10.5946/ce.2022.001
AbstractAbstract PDFPubReaderePub
Background
/Aims: Bispectral index (BIS) monitors process and display electroencephalographic data are used to assess the depth of anesthesia. This study retrospectively evaluated the usefulness of BIS monitoring during endoscopic ultrasonography (EUS).
Methods
This study included 725 consecutive patients who underwent EUS under sedation with propofol. BIS monitoring was used in 364 patients and was not used in 361. The following parameters were evaluated: (1) median dose of propofol; (2) respiratory and circulatory depression; (3) occurrence of body movements; (4) awakening score >8 at the time; and (5) awakening score 2 hours after leaving the endoscopy room.
Results
The BIS group received a significantly lower median dose of propofol than the non-BIS group (159.2 mg vs. 167.5 mg; p=0.015) in all age groups. For patients aged ≥75 years, the reduction in heart rate was significantly lower in the BIS group than in the non-BIS group (1.2% vs. 9.1%; p=0.023). Moreover, the occurrence of body movements was markedly lower in the BIS group than in the non-BIS group (8.5% vs. 39.4%; p<0.001).
Conclusions
During EUS examination, BIS monitoring is useful for maintaining a constant depth of anesthesia, especially in patients 75 years of age or older.

Citations

Citations to this article as recorded by  
  • Propofol‐alone sedative efficacy in observational biliopancreatic endoscopic ultrasound
    Hisaki Kato, Yuki Kawasaki, Kazuya Sumi, Yuki Shibata, Norihiro Nomura, Jun Ushio, Junichi Eguchi, Takayoshi Ito, Haruhiro Inoue
    DEN Open.2025;[Epub]     CrossRef
  • General anesthesia and/or deep hypnotic state in propofol-based conscious sedation for endoscopy
    Halim Bou Daher, Ali El Mokahal, Mohamad Ali Ibrahim, Rana Yamout, Nour Hochaimi, Chakib Ayoub, Yasser H. Shaib, Ala I. Sharara
    iGIE.2024; 3(2): 286.     CrossRef
  • EEG bispectral index sensor guidance improves accuracy and safety of procedural sedation
    A. Oh, N. Karim, A. Pitt, S. Hodgetts, D.W. Edwards, D. Mullan, H-U. Laasch
    Clinical Radiology.2024; 79(12): e1490.     CrossRef
  • Comparison of bispectral index-guided endoscopic ultrasonography with continuous vs. intermittent infusion of propofol: a retrospective study in Japan
    Ayana Okamoto, Ken Kamata, Tomohiro Yamazaki, Shunsuke Omoto, Kosuke Minaga, Mamoru Takenaka, Masatoshi Kudo
    Clinical Endoscopy.2024; 57(6): 814.     CrossRef
  • Advances in Analgosedation and Periprocedural Care for Gastrointestinal Endoscopy
    Sonja Skiljic, Dino Budrovac, Ana Cicvaric, Nenad Neskovic, Slavica Kvolik
    Life.2023; 13(2): 473.     CrossRef
  • Clinical and economic value of bispectral index monitoring for adequate endoscopic sedation
    Se Woo Park
    Clinical Endoscopy.2022; 55(4): 518.     CrossRef
  • Respiratory Failure during BIS-Guided Sedation in a Patient with Relapsing Polychondritis: A Case Report
    Jaesang Lee, Hosik Moon, Sungjin Hong, Jinyoung Chon, Hyejin Kwon, Hunwoo Park, Jiyung Lee
    Medicina.2022; 59(1): 65.     CrossRef
  • 4,377 View
  • 156 Download
  • 7 Web of Science
  • 7 Crossref
Close layer
Boost Your Learning with Quiz
A Rare Case of a White-Furred Ileocecal Valve
Shinya Taki, Takao Maekita, Masayuki Kitano
Clin Endosc 2021;54(4):623-624.   Published online July 30, 2021
DOI: https://doi.org/10.5946/ce.2021.159
PDFPubReaderePub
  • 3,784 View
  • 90 Download
Close layer
Case Report
Migration of a Percutaneous Endoscopic Gastrojejunostomy Tube into the Colon with Small Intestinal Telescoping
Shinya Taki, Takao Maekita, Mayumi Sakata, Kazuhiro Fukatsu, Yoshimasa Maeda, Mikitaka Iguchi, Hidefumi Ito, Masayuki Kitano
Clin Endosc 2019;52(6):616-619.   Published online October 16, 2019
DOI: https://doi.org/10.5946/ce.2019.016
AbstractAbstract PDFPubReaderePub
Continuous duodenal levodopa/carbidopa intestinal gel delivery by a gastrostomy infusion system improves control of Parkinson’s disease. The overall complication rates of percutaneous endoscopic gastrojejunostomy were reported to be 41% and 59% for immediate and delayed adverse events, respectively. A 72-year-old woman underwent percutaneous endoscopic gastrojejunostomy using the delivery system noted above. Abdominal pain and vomiting occurred 3 months later. Esophagogastroduodenoscopy showed a longitudinal ulcer extending from the lower gastric body to the ileum end, with small intestinal telescoping. Colonoscopy showed a large bezoar of food residue that was attached around the tip of the tube, reaching the ascending colon, which may have acted as an anchor. Thus, the gastric antrum and small intestine were shortened with telescoping. This complication was resolved by crushing the bezoar with forceps during colonoscopy and can be prevented by consuming a fiber-free diet and periodic exchanges of the tube using esophagogastroduodenoscopy.

Citations

Citations to this article as recorded by  
  • Retrograde Migration of a Percutaneous Endoscopic Gastro-Jejunal Tube Into the Esophagus
    Binyamin R Abramowitz, Jude Noel, Sushil Ahlawat
    Cureus.2024;[Epub]     CrossRef
  • Weighted Tip Extensions Result in Fewer Gastrojejunostomy Tube Migrations and Increase Tube Lifespan
    Matthew A. Patetta, Kyung R. Kim, Clayton W. Commander, Peter R. Bream
    Journal of Vascular and Interventional Radiology.2023; 34(1): 124.     CrossRef
  • Understanding Parkinson's Disease: A Basic Overview
    Rachael L Anderson, Adelene Choo, Sue Sharrad, Ruth Withey
    Australasian Journal of Neuroscience.2023; 33(2): 9.     CrossRef
  • Parkinson hastalarında perkütan endoskopik gastrojejunostomi katateri takılan hastalarımızın takibi: Tek merkez deneyimi
    Nurten TÜRKEL KÜÇÜKMETİN, Tevfik SOLAKOĞLU
    Akademik Gastroenteroloji Dergisi.2022; 21(3): 157.     CrossRef
  • 4,850 View
  • 91 Download
  • 2 Web of Science
  • 4 Crossref
Close layer
Focused Review Series: Recent Update of Endoscopic Ultrasonography in Gastrointestinal Subepithelial Tumors
Contrast Enhanced Endoscopic Ultrasound Imaging for Gastrointestinal Subepithelial Tumors
Takashi Tamura, Masayuki Kitano
Clin Endosc 2019;52(4):306-313.   Published online July 23, 2019
DOI: https://doi.org/10.5946/ce.2019.056
AbstractAbstract PDFPubReaderePub
Subepithelial tumors are divided into benign subepithelial and potentially malignant gastrointestinal stromal tumors. It is difficult to distinguish between these tumor types. Contrast-enhanced harmonic endoscopic ultrasound is reportedly useful for diagnosing subepithelial tumors, can be safely and easily performed by understanding the principle and method, and can be used to distinguish between tumor types with high sensitivity on the basis of differences in contrast effect. The generated image shows a hyperenhancement pattern in gastrointestinal stromal tumors (sensitivity, 78%–100%; specificity, 60%–100%; accuracy, 60%–100%) and hypoenhancement pattern in benign subepithelial tumors. Contrast-enhanced harmonic endoscopic ultrasound can be used to estimate the malignancy potential of gastrointestinal stromal tumors by evaluating the uniformity of the contrast and the blood vessels inside the tumor, with abnormal intra-tumor blood vessels, heterogeneous enhancement, and non-enhancing spots suggesting malignancy. Contrast-enhanced harmonic endoscopic ultrasound has a higher sensitivity than other imaging modalities for the detection of vascularity within gastrointestinal stromal tumors. Additionally, it has been reported that treatment effects can be estimated by evaluating the blood flow in the gastrointestinal stromal tumor before and after treatment with tyrosine kinase inhibitors using contrastenhanced ultrasound. However, there will be subjective-bias and the results depends on the performer’s skill.

Citations

Citations to this article as recorded by  
  • Endoscopic Ultrasound and Gastric Sub-Epithelial Lesions: Ultrasonographic Features, Tissue Acquisition Strategies, and Therapeutic Management
    Marzia Varanese, Marco Spadaccini, Antonio Facciorusso, Gianluca Franchellucci, Matteo Colombo, Marta Andreozzi, Daryl Ramai, Davide Massimi, Roberto De Sire, Ludovico Alfarone, Antonio Capogreco, Roberta Maselli, Cesare Hassan, Alessandro Fugazza, Alessa
    Medicina.2024; 60(10): 1695.     CrossRef
  • The value of contrast-enhanced harmonic endoscopic ultrasound in differential diagnosis and evaluation of malignant risk of gastrointestinal stromal tumors (<50mm)
    Jiali Wu, Mengqi Zhuang, Yubao Zhou, Xiang Zhan, Weiwei Xie
    Scandinavian Journal of Gastroenterology.2023; 58(5): 542.     CrossRef
  • Endoscopic Ultrasound Advanced Techniques for Diagnosis of Gastrointestinal Stromal Tumours
    Socrate Pallio, Stefano Francesco Crinò, Marcello Maida, Emanuele Sinagra, Vincenzo Francesco Tripodi, Antonio Facciorusso, Andrew Ofosu, Maria Cristina Conti Bellocchi, Endrit Shahini, Giuseppinella Melita
    Cancers.2023; 15(4): 1285.     CrossRef
  • EUS-Guided Diagnosis of Gastric Subepithelial Lesions, What Is New?
    Thomas Vasilakis, Dimitrios Ziogas, Georgios Tziatzios, Paraskevas Gkolfakis, Eleni Koukoulioti, Christina Kapizioni, Konstantinos Triantafyllou, Antonio Facciorusso, Ioannis S. Papanikolaou
    Diagnostics.2023; 13(13): 2176.     CrossRef
  • Rapidly Growing, High-Risk Gastrointestinal Stromal Tumor of the Stomach: A Case Report
    Sung Jin Lim, Han Mo Yoo, Seung-Woo Lee, Hae Joung Sul, Dong Soo Lee
    The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2023; 23(4): 306.     CrossRef
  • The value of color Doppler ultrasonography combined with serum tumor markers in differential diagnosis of gastric stromal tumor and gastric cancer
    Xinyu Cheng, Jianguo Xia, Qi Xu, Huawei Gui
    Open Medicine.2023;[Epub]     CrossRef
  • Ultrasound imaging of subepithelial rectal tumors (review)
    Y. L. Trubacheva, E. M. Bogdanova, A. E. Pershina
    Koloproktologia.2022; 21(1): 107.     CrossRef
  • The Asian Federation of Societies for Ultrasound in Medicine and Biology (AFSUMB) Guidelines for Contrast-Enhanced Endoscopic Ultrasound
    Masayuki Kitano, Yasunobu Yamashita, Ken Kamata, Tiing Leong Ang, Hiroo Imazu, Eizaburo Ohno, Yoshiki Hirooka, Pietro Fusaroli, Dong-Wan Seo, Bertrand Napoléon, Anthony Yuen Bun Teoh, Tae Hyeon Kim, Christoph F. Dietrich, Hsiu-Po Wang, Masatoshi Kudo
    Ultrasound in Medicine & Biology.2021; 47(6): 1433.     CrossRef
  • Efficacy and Safety of Endoscopic Treatment for Gastrointestinal Stromal Tumors in the Upper Gastrointestinal Tract
    Cicilia Marcella, Shakeel Sarwar, Hui Ye, Rui Hua Shi
    Clinical Endoscopy.2020; 53(4): 458.     CrossRef
  • Contrast Harmonic-Enhanced Endoscopic Ultrasound (EUS) Is the Perfect Companion of EUS-Guided Tumor Ablation
    Gianmarco Marocchi, Andrea Lisotti, Pietro Fusaroli
    Gut and Liver.2020; 14(5): 669.     CrossRef
  • 8,109 View
  • 203 Download
  • 8 Web of Science
  • 10 Crossref
Close layer

Clin Endosc : Clinical Endoscopy Twitter Facebook
Close layer
TOP