Hisataka Moriwaki

Comparison of 19-gauge FNA and 22-gauge FNB needles for the EUS-guided fine-needle aspiration of the lymphadenopathy and malignant lymphoma diagnosis: A multicenter retrospective study

Mitsuru Okuno, Shinya Uemura, Tsuyoshi Mukai, Fumiya Kataoka et autres

Background and Objectives: EUS-guided fine-needle aspiration (EUS-FNA) using a 19-gauge FNA needle can safely obtain sufficient tissue samples for the evaluation of lymphadenopathy. FNB needles can also provide adequate tissue, and 22-gauge needles are generally easier to puncture than 19-gauge needles. This …

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Endoscopic ultrasound-guided gallbladder drainage for high-risk surgical patients with acute cholecystitis: comparison of plastic stent and lumen apposing metal stent placement

Mitsuru Okuno, Tsuyoshi Mukai, Fumiya Kataoka, Keisuke Iwata et autres

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Evaluation of Self-Expandable Metallic Stent Characteristics Associated with Longer Patency in Patients with Unresectable Malignant Distal Biliary Obstruction: A Multicenter Retrospective Study

Mitsuru Okuno, Tsuyoshi Mukai, Fumiya Kataoka, Keisuke Iwata et autres

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Trans-lumen apposing metal stent rendezvous technique for bile duct stone after the gallbladder drainage

Fumiya Kataoka, Mitsuru Okuno, Tsuyoshi Mukai, Atsushi Tagami et autres

A lumen-apposing metal stent (LAMS) is useful for endoscopic ultrasound-gallbladder drainage (EUS-GBD) in patients who are surgically unfit and with acute cholecystitis (AC [ 1 ]). Here, we report a case of common bile duct (CBD) stone (CBDS) removal using a trans-LAMS …

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Evaluation of Useful Stent Selection in Unresectable Malignant Hilar Biliary Obstruction with a Unilateral Drainage Route: Propensity Score Matching Analysis

Mitsuru Okuno, Tsuyoshi Mukai, Fumiya Kataoka, Keisuke Iwata et autres

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[Unresectable advanced gastric cancer in which tumor shrinkage persisted for a long period even after the discontinuation of nivolumab third-line treatment due to immune-related adverse events:a case report].

Soichiro Torizawa, Takayuki Nakanishi, Hiroshi Araki, Makoto Kamei et autres

A 77-year-old man with unresectable advanced gastric cancer, complicated by multiple liver and distant lymph node metastases, began drug therapy. As a third-line treatment, nivolumab was administered for two courses;however, the patient developed destructive thyroiditis. Treatment with nivolumab was resumed after clinical …

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Treatment of pancreatitis 3: Follow-up procedures and long-term care

Mitsuru Okuno, Tsuyoshi Mukai, Keisuke Iwata, Fumiya Kataoka et autres

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Newly developed short-length exposed-tip intraductal radiofrequency ablation probe for intra-ampullary adenocarcinoma of the ampulla of Vater

Mitsuru Okuno, Fumiya Kataoka, Tsuyoshi Mukai, Eiichi Tomita et autres

Carcinomas of the ampulla of Vater can cause biliary stricture and jaundice. Intraductal radiofrequency ablation (RFA) has recently been used to treat biliary neoplasms [ 1 ], and a short-length exposed tip RFA probe (11-mm; ELRA, STARmed, Goyang, Korea) has been developed …

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Removal of migrated pancreatic plastic stent by screw-type device under enteroscopy in pancreaticoduodenectomy

Mitsuru Okuno, Fumiya Kataoka, Tsuyoshi Mukai, Eiichi Tomita et autres

Pancreatic drainage using a plastic stent is effective for treating pancreaticointestinal anastomotic strictures after pancreaticoduodenectomy. We report a case of troubleshooting for removal of a stent that migrated to the distal end of the main pancreatic duct (MPD) using a screw-type dilator …

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Enteroscopic direct drainage for submucosal intestinal juice leakage due to afferent loop syndrome in Roux-en-Y anatomy

Mitsuru Okuno, Tsuyoshi Mukai, Fumiya Kataoka, Eiichi Tomita et autres

We report a case of intestinal fluid accumulation secondary to afferent loop syndrome, successfully treated via enteroscopic submucosal drainage. A 66-year-old man with a history of gastric resection and Roux-en-Y reconstruction for gastric cancer 6 years earlier presented with fever. Computed tomography …

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Biliary dilation using a screw-type device for endoscopic ultrasound-hepaticogastrostomy in a relapsed primary sclerosing cholangitis case post-liver transplantation

Mitsuru Okuno, Fumiya Kataoka, Eiichi Tomita, Hidetoshi Matsunami et autres

Primary sclerosing cholangitis (PSC) can cause biliary strictures and cirrhosis. Although liver transplantation is curative for decompensated cirrhosis, PSC can relapse posttransplantation [ 1 ] [ 2 ]. Even though balloon dilatation is effective for biliary strictures [ 3 ], endoscopic retrograde …

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EUS-guided bridging stent placement using a new slim-delivery system for malignant hilar biliary obstruction: Two case reports (with video)

Fumiya Kataoka, Mitsuru Okuno, Tsuyoshi Mukai, Eiichi Tomita et autres

Malignant hilar biliary obstruction (MHBO) can cause cholangitis in the right and left intrahepatic bile ducts (IHBDs) and requires bilateral drainage. Although transpapillary bilateral drainage is the gold standard treatment for MHBO, EUS-guided hepaticogastrostomy (EUS-HGS) is an effective alternative treatment when the …

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