Results 141 to 150 of about 37,807 (266)

Endoscopic Retrograde Cholangiopancreatography‐guided Biliary Drainage with Duckbill‐type Anti‐reflux Metal Stent versus Endoscopic Ultrasound‐guided Hepaticogastrostomy for Malignant Distal Biliary Obstruction in Pancreatic Cancer with Duodenal Invasion

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Background Duodenal invasion is a risk factor for early recurrent biliary obstruction (RBO) due to the increased risk of duodenobiliary reflux. Transpapillary biliary drainage using anti‐reflux metal stents (ARMS) and endoscopic ultrasound‐guided hepaticogastrostomy (EUS‐HGS) are two different strategies for this condition.
Tsuyoshi Takeda, Takashi Sasaki, Tatsuki Hirai, Yoichiro Sato, Yuri Maegawa, Takafumi Mie, Takaaki Furukawa, Yukari Suzuki, Takeshi Okamoto, Masato Ozaka, Naoki Sasahira   +10 more
wiley   +1 more source

Gel Immersion Endoscopic Submucosal Dissection Using a Scissor‐type Knife for Superficial Non‐ampullary Duodenal Epithelial Tumors

DEN Open, Volume 6, Issue 1, April 2026.
Abstract Objectives This study aimed to compare the short‐term therapeutic outcomes between conventional endoscopic submucosal dissection (C‐ESD) and gel immersion ESD (GI‐ESD) for superficial non‐ampullary duodenal epithelial tumors (SNADETs). Methods A retrospective analysis was conducted on patients with SNADETs who underwent C‐ESD or GI‐ESD between
Osamu Dohi, Naoto Iwai, Hayato Fukui, Mayuko Seya, Tomoko Ochiai, Junki Yumoto, Hiroki Mukai, Katsuma Yamauchi, Hajime Miyazaki, Takeshi Yasuda, Takuma Yoshida, Tsugitaka Ishida, Hiroaki Kitae, Yukiko Morinaga, Reo Kobayashi, Ryohei Hirose, Ken Inoue, Naohisa Yoshida, Kazuhiko Uchiyama, Tomohisa Takagi, Hideyuki Konishi, Yoshito Itoh   +21 more
wiley   +1 more source

Antennal arnpullary glands of Helicoverpa zea (Lepidoptera : Noctuidae) [PDF]

, 2003
In adult moths, the cephalic aorta terminates in an apical sack from which extends a pair of optic and antennal vessels that lie on either side of the esophagus, at the dorsoanterior surface of the brain.
Bali, G., Blackburn, M., Meola, S., Raina, A., Wergin, W.   +4 more
core  

Factors Affecting Clinical Course of Postoperative Bile Leakage and Efficacy of Endoscopic Biliary Drainage: A Multi‐Center Retrospective Cohort Study

DEN Open, Volume 6, Issue 1, April 2026.
Abstract Introduction Bile leakage is one of the complications after hepatobiliary surgery, causing intra‐abdominal infections, and is sometimes difficult to treat. The purpose of our study was to investigate the factors related to severity and to evaluate the efficacy of endoscopic treatment.
Kota Shimojo, Takuji Iwashita, Keisuke Iwata, Yuki Utakata, Kaori Koide, Takuya Koizumi, Yuki Ito, Yosuke Ohashi, Shota Iwata, Akihiko Senju, Ryuichi Tezuka, Hironao Ichikawa, Yuhei Iwasa, Naoki Mita, Mitsuru Okuno, Kensaku Yoshida, Akinori Maruta, Shinya Uemura, Masahiko Kawai, Yoshiyuki Sasaki, Katsutoshi Murase, Nobuhisa Matsuhashi, Masahito Shimizu   +22 more
wiley   +1 more source

Rupture of Life‐Threatening Hepatic Artery Pseudoaneurysm After Endoscopic Ultrasonography‐guided Hepaticogastrostomy: Successful Management With Emergency Transcatheter Arterial Embolization

DEN Open, Volume 6, Issue 1, April 2026.
Abstract A 70‐year‐old male with lung cancer and interstitial pneumonia was diagnosed with ampullary carcinoma, causing obstructive jaundice. After the failure of endoscopic retrograde cholangiopancreatography, endoscopic ultrasound‐guided hepaticogastrostomy (EUS‐HGS) was performed with a 7‐Fr plastic stent (PS) into the B2 bile duct.
Hiroshi Yukimoto, Akino Okamoto, Kohsaku Ohnishi, Keitaro Masuko, Junping Wang, Kazuya Ogawa, Ken Ueda, Motohiro Hirao, Yasuhiro Nakaya, Atsushi Hosui   +9 more
wiley   +1 more source

Efficacy and Safety of Duodenal Stenting for Malignant Gastric Outlet Obstruction: Insights From a 15‐year Single‐Center Experience

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Objectives Endoscopic duodenal stent (DS) placement has become a primary palliative approach for malignant gastric outlet obstruction (MGOO), offering minimally invasive symptom relief. However, complications and risk factors for stent dysfunction and prognostic indicators of survival are not fully elucidated.
Masatoshi Murakami, Nao Fujimori, Akihiko Suenaga, Takahiro Ueda, Shotaro Kakehashi, Akito Furuta, Akihisa Ohno, Kazuhide Matsumoto, Yu Takamatsu, Keijiro Ueda, Yoshihiro Ogawa   +10 more
wiley   +1 more source

Gastric Foveolar‐Type Hyperplastic Polyp of the Duodenum With GNAS and KRAS Mutations: A Potential Precursor to Neoplasia

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT We report a gastric foveolar‐type hyperplastic polyp of the duodenum harboring mutations in the GNAS and KRAS genes. The lesion was incidentally detected during a routine upper gastrointestinal endoscopy in a man in his 50s. It appeared as a 10‐mm elevated lesion located at the superior duodenal angle.
Kenji Yamazaki, Ryoji Kushima, Noritaka Ozawa, Haruka Koizumi, Saeka Hayashi, Atsushi Soga, Koji Yamashita, Shogo Shimizu, Masahito Shimizu   +8 more
wiley   +1 more source

Survival Rate and Complications of Palliative Bypass Surgery in Advanced Cancer of the Ampulla of Vater and Pancreatic Head

مجله اپیدمیولوژی ایران, 2017
Background and Objectives: The cancer of the pancreatic head and Ampulla of Vater is a malignant disease usually seen in advanced stages with symptoms caused by stomach and biliary obstruction.
SH Mehrvarz, HA Mohebbi, S Heydari, HR Zarezadeh Mehrizi, HR Rasouli   +4 more
doaj  

Efficacy and Safety of Gel Immersion Endoscopic Mucosal Resection for Gastric Neoplasms in Patients With Familial Adenomatous Polyposis: A Multicenter Retrospective Study

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Objectives Approximately 10%–30% patients with familial adenomatous polyposis (FAP) develop gastric neoplasms (GNs). Although recent reports have suggested the effectiveness of gel‐immersion endoscopic mucosal resection (GI‐EMR) for FAP‐associated GNs, given its simplicity and safety, treatment outcomes for such lesions have not been evaluated.
Hidenori Kimura, Kohei Shigeta, Yohei Yabuuchi, Yoichi Yamamoto, Soichiro Nagao, Akito Noguchi, Shinya Uematsu, Shuhei Shintani, Hiroto Inoue, Atsushi Nishida, Hiroyuki Ono, Osamu Inatomi   +11 more
wiley   +1 more source

Diagnostic Performance of Magnifying Endoscopy With Crystal Violet Staining for Superficial Non‐ampullary Duodenal Epithelial Tumors: A Single‐center Prospective Study

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Objectives We previously reported a potential diagnostic algorithm for superficial non‐ampullary duodenal epithelial tumors (SNADETs) using white‐light magnifying endoscopy with crystal violet staining (ME‐CV). This study aimed to determine the diagnostic performance of the scheme and compare it with the conventional white‐light endoscopy (WLE)
Tomo Kumei, Yosuke Toya, Shun Yamada, Makoto Eizuka, Shunichi Yanai, Masaki Endo, Ryo Sugimoto, Noriyuki Uesugi, Tamotsu Sugai, Naoki Yanagawa, Fumiaki Takahashi, Takayuki Matsumoto   +11 more
wiley   +1 more source