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14 "Shin Haba"
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Original Articles
Safety and efficacy of endoscopic ultrasound-guided pancreatic duct drainage using a drill dilator: a retrospective study from Japan
Ahmed Sadek, Kazuo Hara, Nozomi Okuno, Shin Haba, Takamichi Kuwahara, Toshitaka Fukui, Minako Urata, Takashi Kondo, Yoshitaro Yamamoto, Kenneth Tachi
Received October 20, 2023  Accepted November 25, 2023  Published online June 5, 2024  
DOI: https://doi.org/10.5946/ce.2023.272    [Epub ahead of print]
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background
/Aims: Dilation of the tract before stent deployment is a challenging step in endoscopic ultrasound-guided pancreatic duct drainage (EUS-PDD). In this study, we examined the effectiveness and safety of a novel spiral dilator, Tornus ES (Asahi Intec), for EUS-PDD.
Methods
This was a retrospective, single-arm, observational study at Aichi Cancer Center Hospital. The punctured tract was dilated using a Tornus ES dilator in all EUS-PDD cases. Our primary endpoint was the technical success rate of initial tract dilation. Technical success was defined as successful fistula dilation using Tornus ES followed by successful stent insertion. Secondary endpoints were procedure times and early adverse events.
Results
A total of 12 patients were included between December 2021 and March 2023. EUS-PDD was performed in 11 patients for post-pancreaticoduodenectomy anastomotic strictures and one patient with pancreatitis with duodenal perforation. The technical success rates of stent insertion and fistula dilation using Tornus ES dilator was 100%. The median procedure time was 24 minutes. No remarkable adverse events related to the procedure were observed, apart from fever, which occurred in 2 patients.
Conclusions
Tract dilation in EUS-PDD using Tornus ES is effective and safe.
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Safety and efficacy of novel oblique-viewing scope for B2-endoscopic ultrasound-guided hepaticogastrostomy
Sho Ishikawa, Kazuo Hara, Nozomi Okuno, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Yasuhiro Kuraishi, Takafumi Yanaidani, Masanori Yamada, Tsukasa Yasuda, Toshitaka Fukui, Teru Kumagi, Yoichi Hiasa
Received May 16, 2023  Accepted July 7, 2023  Published online March 29, 2024  
DOI: https://doi.org/10.5946/ce.2023.129    [Epub ahead of print]
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (EUS-HGS) performed at the intrahepatic bile duct segment 3 (B3) is widely used for biliary drainage. Although performing post-puncture procedures is easier in the intrahepatic bile duct segment 2 (B2) when using a conventional oblique-viewing (OV) EUS scope, this method may cause transesophageal puncture and severe adverse events. We evaluated the safety and efficacy of B2 puncture using a novel OV-EUS scope.
Methods
In this single-center retrospective study, we prospectively enrolled and collected data from 45 patients who consecutively underwent EUS-HGS procedures with a novel OV-EUS scope between September 2021 and December 2022 at our cancer center.
Results
The technical success rates of B2-EUS-HGS and EUS-HGS were 93.3% (42/45) and 97.8% (44/45), respectively. The early adverse event rate was 8.9% (4/45) with no cases of scope changes or transesophageal punctures. The median procedure time was 13 minutes (range, 5–30).
Conclusions
B2-EUS-HGS can be performed safely with the novel EG-740UT (Fujifilm) OV-scope without transesophageal puncture and with a high success rate. B2-EUS-HGS using this novel OV scope may be the preferred strategy for EUS-HGS.

Citations

Citations to this article as recorded by  
  • Dedicated Echoendoscope for Interventional Endoscopic Ultrasound: Comparison with a Conventional Echoendoscope
    Toshio Fujisawa, Shigeto Ishii, Yousuke Nakai, Hirofumi Kogure, Ko Tomishima, Yusuke Takasaki, Koichi Ito, Sho Takahashi, Akinori Suzuki, Hiroyuki Isayama
    Journal of Clinical Medicine.2024; 13(10): 2840.     CrossRef
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Review
Forward viewing liner echoendoscopy for therapeutic interventions
Kazuo Hara, Nozomi Okuno, Shin Haba, Takamichi Kuwahara
Clin Endosc 2024;57(2):175-180.   Published online February 29, 2024
DOI: https://doi.org/10.5946/ce.2023.271
AbstractAbstract PDFPubReaderePub
Therapeutic endoscopic ultrasonography (EUS) procedures using the forward-viewing convex EUS (FV-EUS) have been reviewed based on the articles reported to date. The earliest reported procedure is the drainage of pancreatic pseudocysts using FV-EUS. However, the study on drainage of pancreatic pseudocysts focused on showing that drainage is possible with FV-EUS rather than leveraging its features. Subsequently, studies describing the characteristics of FV-EUS have been reported. By using FV-EUS in EUS-guided choledochoduodenostomy, double punctures in the gastrointestinal tract can be avoided. In postoperative modified anatomical cases, using the endoscopic function of FV-EUS, procedures such as bile duct drainage from anastomosis, pancreatic duct drainage from the afferent limb, and abscess drainage from the digestive tract have been reported. When a perpendicular puncture to the gastrointestinal tract is required or when there is a need to insert the endoscope deep into the gastrointestinal tract, FV-EUS is considered among the options.
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Original Articles
Clinical utility of endoscopic ultrasound-guided tissue acquisition for comprehensive genomic profiling of patients with biliary tract cancer, especially with intrahepatic cholangiocarcinoma
Takafumi Yanaidani, Kazuo Hara, Nozomi Okuno, Shin Haba, Takamichi Kuwahara, Yasuhiro Kuraishi, Nobumasa Mizuno, Sho Ishikawa, Masanori Yamada, Tsukasa Yasuda
Clin Endosc 2024;57(3):384-392.   Published online February 15, 2024
DOI: https://doi.org/10.5946/ce.2023.139
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Endoscopic ultrasound-guided tissue acquisition (EUS-TA) is a standard diagnostic method for biliary tract cancer (BTC), and samples obtained in this manner may be used for comprehensive genomic profiling (CGP). This study evaluated the utility of EUS-TA for CGP in a clinical setting and determined the factors associated with the adequacy of CGP in patients with BTC.
Methods
CGP was attempted for 105 samples from 94 patients with BTC at the Aichi Cancer Center, Japan, from October 2019 to April 2022.
Results
Overall, 77.1% (81/105) of the samples were adequate for CGP. For 22-G or 19-G fine-needle biopsy (FNB), the sample adequacy was 85.7% (36/42), which was similar to that of surgical specimens (94%, p=0.45). Univariate analysis revealed that 22-G or larger FNB needle usage (86%, p=0.003), the target primary lesions (88%, p=0.015), a target size ≥30 mm (100%, p=0.0013), and number of punctures (90%, p=0.016) were significantly positively associated with CGP sample adequacy.
Conclusions
EUS-TA is useful for CGP tissue sampling in patients with BTC. In particular, the use of 22-G or larger FNB needles may allow for specimen adequacy comparable to that of surgical specimens.

Citations

Citations to this article as recorded by  
  • Is genomic analysis possible in a tissue acquired via endoscopic ultrasound-guided fine-needle biopsy in cholangiocarcinoma?
    Jonghyun Lee, Sung Yong Han
    Clinical Endoscopy.2024; 57(3): 332.     CrossRef
  • 2,075 View
  • 43 Download
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The role of needle-based confocal laser endomicroscopy in the diagnosis of pancreatic neuroendocrine tumors
Masanori Yamada, Kazuo Hara, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Nozomi Okuno, Yasuhiro Kuraishi, Takafumi Yanaidani, Sho Ishikawa, Tsukasa Yasuda, Toshitaka Fukui
Clin Endosc 2024;57(3):393-401.   Published online September 12, 2023
DOI: https://doi.org/10.5946/ce.2023.068
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is a highly accurate method for diagnosing pancreatic neuroendocrine tumors (PNETs); however, some PNETs are difficult to diagnose. Recently, the efficacy of needle-based confocal laser endomicroscopy (nCLE) in diagnosing solid pancreatic masses has been reported. However, the efficacy of nCLE in the diagnosis of PNETs remains unknown and only a small number of cases have been reported. Hence, this study aimed to evaluate the efficacy of nCLE in the diagnosis of PNETs.
Methods
This single-center retrospective study evaluated 30 consecutive patients with suspected PNETs on contrast-enhanced computed tomography, who consented to nCLE combined with EUS-FNA and were diagnosed using EUS-FNA or surgical resection. The diagnostic criteria for PNETs using nCLE were based on the nesting and trabecular and glandular arrangement of tumor cell clusters surrounded by capillary vessels and fibrosis, as reported in previous studies.
Results
The diagnosis using nCLE was classified into three categories: misdiagnosis in three cases (10%), non-diagnostic in six cases (20%), and diagnostic in 21 cases (70%). nCLE was able to diagnose PNET in one of the two cases with inconclusive EUS-FNA.
Conclusions
Although further development of the resolution and optimization of the diagnostic criteria are required, nCLE may constitute a useful diagnostic option in cases of inconclusive EUS-FNA for PNETs.

Citations

Citations to this article as recorded by  
  • Recent developments in the diagnosis of pancreatic neuroendocrine neoplasms
    Anna Battistella, Matteo Tacelli, Paola Mapelli, Marco Schiavo Lena, Valentina Andreasi, Luana Genova, Francesca Muffatti, Francesco De Cobelli, Stefano Partelli, Massimo Falconi
    Expert Review of Gastroenterology & Hepatology.2024; 18(4-5): 155.     CrossRef
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Safety of endoscopic ultrasound-guided hepaticogastrostomy in patients with malignant biliary obstruction and ascites
Tsukasa Yasuda, Kazuo Hara, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Nozomi Okuno, Yasuhiro Kuraishi, Takafumi Yanaidani, Sho Ishikawa, Masanori Yamada, Toshitaka Fukui
Clin Endosc 2024;57(2):246-252.   Published online September 7, 2023
DOI: https://doi.org/10.5946/ce.2023.075
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background
/Aims: Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (EUS-HGS) is useful for patients with biliary cannulation failure or inaccessible papillae. However, it can lead to serious complications such as bile peritonitis in patients with ascites; therefore, development of a safe method to perform EUS-HGS is important. Herein, we evaluated the safety of EUS-HGS with continuous ascitic fluid drainage in patients with ascites.
Methods
Patients with moderate or severe ascites who underwent continuous ascites drainage, which was initiated before EUS-HGS and terminated after the procedure at our institution between April 2015 and December 2022, were included in the study. We evaluated the technical and clinical success rates, EUS-HGS-related complications, and feasibility of re-intervention.
Results
Ten patients underwent continuous ascites drainage, which was initiated before EUS-HGS and terminated after completion of the procedure. Median duration of ascites drainage before and after EUS-HGS was 2 and 4 days, respectively. Technical success with EUS-HGS was achieved in all 10 patients (100%). Clinical success with EUS-HGS was achieved in 9 of the 10 patients (90 %). No endoscopic complications such as bile peritonitis were observed.
Conclusions
In patients with ascites, continuous ascites drainage, which is initiated before EUS-HGS and terminated after completion of the procedure, may prevent complications and allow safe performance of EUS-HGS.

Citations

Citations to this article as recorded by  
  • Management of iatrogenic perforations during endoscopic interventions in the hepato-pancreatico-biliary tract
    Kirsten Boonstra, Rogier P. Voermans, Roy L.J. van Wanrooij
    Best Practice & Research Clinical Gastroenterology.2024; 70: 101890.     CrossRef
  • Is Endoscopic Ultrasound-Guided Hepaticogastrostomy Safe and Effective after Failed Endoscopic Retrograde Cholangiopancreatography?—A Systematic Review and Meta-Analysis
    Saqr Alsakarneh, Mahmoud Y. Madi, Dushyant Singh Dahiya, Fouad Jaber, Yassine Kilani, Mohamed Ahmed, Azizullah Beran, Mohamed Abdallah, Omar Al Ta’ani, Anika Mittal, Laith Numan, Hemant Goyal, Mohammad Bilal, Wissam Kiwan
    Journal of Clinical Medicine.2024; 13(13): 3883.     CrossRef
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Case Reports
Refractory benign biliary stricture due to chronic pancreatitis in two patients treated using endoscopic ultrasound-guided choledochoduodenostomy fistula creation: case reports
Sho Ishikawa, Nozomi Okuno, Kazuo Hara, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Yasuhiro Kuraishi, Takafumi Yanaidani
Clin Endosc 2024;57(1):122-127.   Published online May 16, 2023
DOI: https://doi.org/10.5946/ce.2022.149
AbstractAbstract PDFPubReaderePub
Benign biliary stricture (BBS) is a complication of chronic pancreatitis (CP). Despite endoscopic biliary stenting, some patients do not respond to treatment, and they experience recurrent cholangitis. We report two cases of CP with refractory BBS treated using endoscopic ultrasound-guided choledochoduodenostomy (EUS-CDS) fistula creation. A 50-year-old woman and a 60-year-old man both presented with obstructive jaundice secondary to BBS due to alcoholic CP. They underwent repeated placement of a fully covered self-expandable metal stent for biliary strictures. However, the strictures persisted, causing repeated episodes of cholangitis. Therefore, an EUS-CDS was performed. The stents were eventually removed and the patients became stent-free. These fistulas have remained patent without cholangitis for more than 2.5 years. Fistula creation using EUS-CDS is an effective treatment option for BBS.

Citations

Citations to this article as recorded by  
  • Forward viewing liner echoendoscopy for therapeutic interventions
    Kazuo Hara, Nozomi Okuno, Shin Haba, Takamichi Kuwahara
    Clinical Endoscopy.2024; 57(2): 175.     CrossRef
  • 1,878 View
  • 153 Download
  • 1 Web of Science
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Endoscopic ultrasound-guided hepaticogastrostomy by puncturing both B2 and B3: a single center experience
Moaz Elshair, Kazuo Hara, Nozomi Okuno, Shin Haba, Takamichi Kuwahara, Asmaa Bakr, Abdou Elshafei, Mohamed Z. Abu-Amer
Received August 12, 2022  Accepted November 23, 2022  Published online May 3, 2023  
DOI: https://doi.org/10.5946/ce.2022.209    [Epub ahead of print]
AbstractAbstract PDFPubReaderePub
Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) through ducts B2 or B3 is effective in most patients with biliary obstruction, because B2 and B3 commonly join together. However, in some patients, B2 and B3 do not join each other due to invasive hilar tumors; therefore, single-route drainage is insufficient. Here, we investigated the feasibility and efficacy of EUS-HGS through both B2 and B3 simultaneously in seven patients. We decided to perform EUS-HGS through both B2 and B3 to achieve adequate biliary drainage because these two ducts were separate from each other. Here, we report a 100% technical and overall clinical success rate. Early adverse effects were closely monitored. Minimal bleeding was reported in one patient (1/7) and mild peritonitis in one patient (1/7). None of the patients experienced stent dysfunction, fever, or bile leakage after the procedure. EUS-HGS through both B2 and B3 simultaneously is safe, feasible, and effective for biliary drainage in patients with separated ducts.
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Original Articles
Safety and feasibility of opening window fistulotomy as a new precutting technique for primary biliary access in endoscopic retrograde cholangiopancreatography
Yasuhiro Kuraishi, Kazuo Hara, Shin Haba, Takamichi Kuwahara, Nozomi Okuno, Takafumi Yanaidani, Sho Ishikawa, Tsukasa Yasuda, Masanori Yamada, Nobumasa Mizuno
Clin Endosc 2023;56(4):490-498.   Published online April 27, 2023
DOI: https://doi.org/10.5946/ce.2022.130
Graphical AbstractGraphical Abstract AbstractAbstract PDFSupplementary MaterialPubReaderePub
Background
/Aims: Post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP) is the most common and serious complication of endoscopic retrograde cholangiopancreatography. To prevent this event, a unique precutting method, termed opening window fistulotomy, was performed in patients with a large infundibulum as the primary procedure for biliary cannulation, whereby a suprapapillary laid-down H-shaped incision was made without touching the orifice. This study aimed to assess the safety and feasibility of this novel technique.
Methods
One hundred and ten patients were prospectively enrolled in this study. Patients with a papillary roof size ≥10 mm underwent opening window fistulotomy for primary biliary access. In addition, the incidence of complications and success rate of biliary cannulation were evaluated.
Results
The median size of the papillary roof was 6 mm (range, 3–20 mm). Opening window fistulotomy was performed in 30 patients (27.3%), none of whom displayed PEP. Duodenal perforation was recorded in one patient (3.3%), which was resolved by conservative treatment. The cannulation rate was high (96.7%, 29/30 patients). The median duration of biliary access was 8 minutes (range, 3–15 minutes).
Conclusions
Opening window fistulotomy demonstrated its feasibility for primary biliary access by achieving great safety with no PEP complications and a high success rate for biliary cannulation.

Citations

Citations to this article as recorded by  
  • Comments on ‘Safety and feasibility of opening window fistulotomy as a new precutting technique for primary biliary access in endoscopic retrograde cholangiopancreatography’
    Masood Muhammad Karim, Adeel Ur Rehman, Faisal Wasim Ismail, Om Parkash
    Clinical Endoscopy.2024; 57(2): 280.     CrossRef
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  • 128 Download
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Clinical utility of endoscopic ultrasound-guided tissue acquisition for comprehensive genomic profiling of pancreatic cancer
Nozomi Okuno, Kazuo Hara, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Yasuhiro Kuraishi, Daiki Fumihara, Takafumi Yanaidani
Clin Endosc 2023;56(2):221-228.   Published online March 7, 2023
DOI: https://doi.org/10.5946/ce.2022.086
AbstractAbstract PDFPubReaderePub
Background
/Aims: Endoscopic ultrasound-guided tissue acquisition (EUS-TA) is essential for the diagnosis of pancreatic cancer. The feasibility of comprehensive genomic profiling (CGP) using samples obtained by EUS-TA has been under recent discussion. This study aimed to evaluate the utility of EUS-TA for CGP in a clinical setting.
Methods
CGP was attempted in 178 samples obtained from 151 consecutive patients with pancreatic cancer at the Aichi Cancer Center between October 2019 and September 2021. We evaluated the adequacy of the samples for CGP and determined the factors associated with the adequacy of the samples obtained by EUS-TA retrospectively.
Results
The overall adequacy for CGP was 65.2% (116/178), which was significantly different among the four sampling methods (EUS-TA vs. surgical specimen vs. percutaneous biopsy vs. duodenal biopsy, 56.0% [61/109] vs. 80.4% [41/51] vs. 76.5% [13/17] vs. 100.0% [1/1], respectively; p=0.022). In a univariate analysis, needle gauge/type was associated with adequacy (22 G fine-needle aspiration vs. 22 G fine-needle biopsy [FNB] vs. 19 G-FNB, 33.3% (5/15) vs. 53.5% (23/43) vs. 72.5% (29/40); p=0.022). The sample adequacy of 19 G-FNB for CGP was 72.5% (29/40), and there was no significant difference between 19 G-FNB and surgical specimens (p=0.375).
Conclusions
To obtain adequate samples for CGP with EUS-TA, 19 G-FNB was shown to be the best in clinical practice. However, 19 G-FNB was not still sufficient, so further efforts are required to improve adequacy for CGP.

Citations

Citations to this article as recorded by  
  • Updated techniques and evidence for endoscopic ultrasound‐guided tissue acquisition from solid pancreatic lesions
    Masahiro Itonaga, Reiko Ashida, Masayuki Kitano
    DEN Open.2025;[Epub]     CrossRef
  • Tissue acquisition for comprehensive genomic profiling of gallbladder cancer using a forward-viewing echoendoscope in a patient who underwent Roux-en-Y reconstruction
    Michihiro Ono, Shutaro Oiwa, Atsushi Uesugi, Seiya Saito, Ryota Yokoyama, Makoto Usami, Tomoyuki Abe, Miri Fujita, Kohichi Takada, Masahiro Maeda
    Clinical Journal of Gastroenterology.2024; 17(1): 164.     CrossRef
  • Endoscopic ultrasound-guided tissue acquisition for comprehensive genomic profiling
    Nozomi Okuno, Kazuo Hara
    Journal of Medical Ultrasonics.2024; 51(2): 253.     CrossRef
  • Oil blotting paper for formalin fixation increases endoscopic ultrasound‐guided tissue acquisition‐collected sample volumes on glass slides
    Takuo Yamai, Kenji Ikezawa, Yusuke Seiki, Ko Watsuji, Yasuharu Kawamoto, Takeru Hirao, Kazuma Daiku, Shingo Maeda, Makiko Urabe, Yugo Kai, Ryoji Takada, Kaori Mukai, Tasuku Nakabori, Hiroyuki Uehara, Sayoko Tsuzaki, Ayumi Ryu, Satoshi Tanada, Shigenori Na
    Cancer Medicine.2024;[Epub]     CrossRef
  • Endoscopic ultrasound-guided tissue acquisition for personalized treatment in pancreatic adenocarcinoma
    Sang Myung Woo
    Clinical Endoscopy.2023; 56(2): 183.     CrossRef
  • Comparison of the novel Franseen needle versus the fine‐needle aspiration needle in endoscopic ultrasound‐guided tissue acquisition for cancer gene panel testing: A propensity score‐matching analysis
    Tomotaka Mori, Eisuke Ozawa, Akane Shimakura, Kosuke Takahashi, Satoshi Matsuo, Kazuaki Tajima, Yasuhiko Nakao, Masanori Fukushima, Ryu Sasaki, Satoshi Miuma, Hisamitsu Miyaaki, Shinji Okano, Kazuhiko Nakao
    JGH Open.2023; 7(9): 652.     CrossRef
  • Editorial: Endoscopic ultrasound‐guided tissue acquisition in the era of precision medicine
    Tiing Leong Ang, James Weiquan Li, Lai Mun Wang
    Journal of Gastroenterology and Hepatology.2023; 38(10): 1677.     CrossRef
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Utility of forward-view endoscopic ultrasound in fine-needle aspiration in patients with a surgically altered upper gastrointestinal anatomy
Asmaa Bakr, Kazuo Hara, Moaz Elshair, Shin Haba, Takamichi Kuwahara, Nozomi Okuno, Daiki Fumihara, Takafumi Yanaidani, Samy Zaky, Hanaa Omar
Clin Endosc 2023;56(3):367-374.   Published online January 5, 2023
DOI: https://doi.org/10.5946/ce.2021.238
Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReaderePub
Background
/Aims: Endoscopic ultrasound (EUS)-guided fine-needle aspiration (FNA) using oblique-view EUS in patients with a surgically altered anatomy (SAA) of the upper gastrointestinal tract is limited because of difficult scope insertion due to the disturbed anatomy. This study aimed to investigate the efficiency of forward-view (FV)-EUS in performing FNA in patients with a SAA.
Methods
We retrospectively investigated 32 patients with a SAA of the upper gastrointestinal tract who visited Aichi Cancer Center Hospital in Nagoya, Japan, between January 2014 and December 2020. We performed-upper gastrointestinal EUS-FNA using FV-EUS combined with fluoroscopic imaging to confirm tumor recurrence or to make a decision before chemotherapy or after a failure of diagnosis by radiology.
Results
We successfully performed EUS-FNA in all studied patients (100% technical success), with the specificity, sensitivity, and accuracy of 100%, 87.5%, and 87.8%, respectively, with no complications.
Conclusions
EUS-FNA using FV-EUS combined with fluoroscopic imaging is an effective and safe technique for tissue acquisition in patients with a SAA.
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Case Reports
Endoscopic ultrasound-guided portal vein coiling: troubleshooting interventional endoscopic ultrasonography
Shin Haba, Kazuo Hara, Nobumasa Mizuno, Takamichi Kuwahara, Nozomi Okuno, Akira Miyano, Daiki Fumihara, Moaz Elshair
Clin Endosc 2022;55(3):458-462.   Published online November 30, 2021
DOI: https://doi.org/10.5946/ce.2021.114
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (HGS) is widely performed not only as an alternative to transpapillary biliary drainage, but also as primary drainage for malignant biliary obstruction. For anatomical reasons, this technique carries an unavoidable risk of mispuncturing intrahepatic vessels. We report a technique for troubleshooting EUS-guided portal vein coiling to prevent bleeding from the intrahepatic portal vein after mispuncture during interventional EUS. EUS-HGS was planned for a 59-year-old male patient with unresectable pancreatic cancer. The dilated bile duct (lumen diameter, 2.8 mm) was punctured with a 19-gauge needle, and a guidewire was inserted. After bougie dilation, the guidewire was found to be inside the intrahepatic portal vein. Embolizing coils were placed to prevent bleeding. Embolization coils were successfully inserted under stabilization of the catheter using a double-lumen cannula with a guidewire. Following these procedures, the patient was asymptomatic. Computed tomography performed the next day revealed no complications.
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High-Resolution Probe-Based Confocal Laser Endomicroscopy for Diagnosing Biliary Diseases
Hiroki Koda, Kazuo Hara, Okuno Nozomi, Takamichi Kuwahara, Mizuno Nobumasa, Shin Haba, Miyano Akira, Isomoto Hajime
Clin Endosc 2021;54(6):924-929.   Published online March 15, 2021
DOI: https://doi.org/10.5946/ce.2020.191
AbstractAbstract PDFPubReaderePub
Probe-based confocal laser endomicroscopy is an endoscopic technique that enables in vivo histological evaluation using fluorescent pigment. The ability to diagnostically differentiate between benign and malignant biliary disease using the “CholangioFlexTM”, a dedicated biliary device, has been reported. However, the Miami and Paris classifications, used as diagnostic criteria, mainly evaluate findings in the submucosa, and visualizing the epithelium as the main site of lesions remains difficult. To address this problem, we verified the imaging findings and diagnostic ability of three types of probes: CholangioFlexTM, GastroFlexTM, and AlveoFlexTM. With GastroFlexTM, the clear mucosal epithelium was observed, and differential diagnoses as benign/malignant could be made based on epithelial findings. GastroFlexTM may be a good first-choice probe for probe-based confocal laser endomicroscopy of biliary diseases, and a new diagnostic classification based on bile duct epithelial findings may provide useful criteria independent of the Miami or Paris classifications.
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Original Article
Outcomes of Endoscopic Ultrasound-Guided Biliary Drainage in Patients Undergoing Antithrombotic Therapy
Nozomi Okuno, Kazuo Hara, Nobumasa Mizuno, Shin Haba, Takamichi Kuwahara, Hiroki Koda, Masahiro Tajika, Tsutomu Tanaka, Sachiyo Onishi, Keisaku Yamada, Akira Miyano, Daiki Fumihara, Moaz Elshair
Clin Endosc 2021;54(4):596-602.   Published online February 17, 2021
DOI: https://doi.org/10.5946/ce.2020.194
AbstractAbstract PDFPubReaderePub
Background
/Aims: The Japan Gastroenterological Endoscopy Society (JGES) has published guidelines for gastroenterological endoscopy in patients undergoing antithrombotic treatment. These guidelines classify endoscopic ultrasound-guided biliary drainage (EUS-BD) as a high-risk procedure. Nevertheless, the bleeding risk of EUS-BD in patients undergoing antithrombotic therapy is uncertain. Therefore, this study aimed to assess the bleeding risk in patients undergoing antithrombotic therapy.
Methods
This single-center retrospective study included 220 consecutive patients who underwent EUS-BD between January 2013 and December 2018. We managed the withdrawal and continuation of antithrombotic agents according to the JGES guidelines. We compared the bleeding event rates among patients who received and those who did not receive antithrombotic agents.
Results
A total of 18 patients (8.1%) received antithrombotic agents and 202 patients (91.8%) did not. Three patients experienced bleeding events, with an overall bleeding event rate of 1.3% (3/220): one patient was in the antithrombotic group (5.5%) and two patients were in the non-antithrombotic group (0.9%) (p=0.10). All cases were moderate. The sole thromboembolic event (0.4%) was a cerebral infarction in a patient in the non-antithrombotic group.
Conclusions
The rate of EUS-BD-related bleeding events was low. Even in patients receiving antithrombotic therapy, the bleeding event rates were not significantly different from those in patients not receiving antithrombotic therapy.

Citations

Citations to this article as recorded by  
  • The New potential for Using Franseen Needles in Interventional EUS
    Nozomi Okuno, Kazuo Hara, Shin Haba, Takamichi Kuwahara, Toshitaka Fukui, Minako Urata, Yoshitaro Yamamoto, Takashi Kondo
    Internal Medicine.2024;[Epub]     CrossRef
  • International Digestive Endoscopy Network consensus on the management of antithrombotic agents in patients undergoing gastrointestinal endoscopy
    Seung Joo Kang, Chung Hyun Tae, Chang Seok Bang, Cheol Min Shin, Young-Hoon Jeong, Miyoung Choi, Joo Ha Hwang, Yutaka Saito, Philip Wai Yan Chiu, Rungsun Rerknimitr, Christopher Khor, Vu Van Khien, Kee Don Choi, Ki-Nam Shim, Geun Am Song, Oh Young Lee
    Clinical Endoscopy.2024; 57(2): 141.     CrossRef
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