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World Journal of Gastrointestinal Endoscopy

Jin-Ying Li, Wen-Huan Zhang, Chun-Ling Huang, Dang Huang, Guo-Wen Zuo, Lie-Xin Liang
Jackhammer (hypercontractile) esophagus presents with dysphagia and chest pain. Current treatments are limited. We describe a 60-year-old man who presented with dysphagia, chest pain and heartburn for a period of 1 year. His workup showed Barrett's esophagus on endoscopy and high-resolution manometry demonstrated jackhammer esophagus with esophagogastric junction outflow obstruction. The patient was treated with proton pump inhibitor and nifedipine but without resolution of his symptoms. He was followed up to assess the efficacy of treatment with deanxit (flupentixol + melitracen)...
December 16, 2017: World Journal of Gastrointestinal Endoscopy
Kazunao Hayashi, Kenya Kamimura, Kazunori Hosaka, Satoshi Ikarashi, Junji Kohisa, Kazuya Takahashi, Kentaro Tominaga, Kenichi Mizuno, Satoru Hashimoto, Junji Yokoyama, Satoshi Yamagiwa, Kazuyasu Takizawa, Toshifumi Wakai, Hajime Umezu, Shuji Terai
Duodenal gastrointestinal stromal tumors (GISTs) are extremely rare disease entities, and the extraluminal type is difficult to diagnose. These tumors have been misdiagnosed as pancreatic tumors; hence, pancreaticoduodenectomy has been performed, although partial duodenectomy can be performed if accurately diagnosed. Developing a diagnostic methodology including endoscopic ultrasonography (EUS) and fine-needle aspiration (FNA) has allowed us to diagnose the tumor directly through the duodenum. Here, we present a case of a 50-year-old woman with a 27-mm diameter tumor in the pancreatic uncus on computed tomography scan...
December 16, 2017: World Journal of Gastrointestinal Endoscopy
José A Coronado, Miguel Á Chávez, Martín A Manrique, Jony Cerna, Ana L Trejo
Epithelioid sarcoma (ES), a mesenchymatous malign neoformation, is often diagnosed in later stages and associated with high recurrence index, metastasis and mortality. We report a case of a 65 years old male, with history of abdominal pain and upper gastrointestinal bleeding. Endoscopy demonstrated a posterior duodenal wall perforation communicating with a solid retroperitoneal neoformation. Endoscopic biopsy was performed, with a final report of ES. The patient was submitted for surgical palliation due to the tumor's unresectability...
December 16, 2017: World Journal of Gastrointestinal Endoscopy
Javier Santos-Fernandez, Christopher Paiji, Mohammad Shakhatreh, Irene Becerro-Gonzalez, Ramon Sanchez-Ocana, Paul Yeaton, Jason Samarasena, Manuel Perez-Miranda
AIM: To investigate technical feasibility, outcomes and adverse events of the lumen-apposing metal stent (LAMS) for benign gastrointestinal (GI) tract strictures. METHODS: Between July 2015 and January 2017, patients undergoing treatment by LAMS for benign GI strictures at three tertiary referral centers were included in this study. Primary outcomes included technical success, short-term clinical success, long-term clinical success, and adverse events. Short-term clinical success was defined as symptom resolution at 30 d after stent placement...
December 16, 2017: World Journal of Gastrointestinal Endoscopy
Aisha Sooltangos, Matthew Davenport, Stephen McGrath, Jonathan Vickers, Siba Senapati, Kurshid Akhtar, Regi George, Yeng Ang
AIM: To investigate the efficacy of endoscopic submucosal dissection (ESD) at diagnosing and treating superficial neoplastic lesions of the stomach in a United Kingdom Caucasian population. METHODS: Data of patients treated with or considered for ESD at a tertiary referral center in the United Kingdom were retrieved for a period of 2 years (May 2015 to June 2017) from the electronic patient records of the hospital. Only Caucasian patients were included. Primary outcomes were curative resection (CR) and were defined as ESD resections with clear horizontal and vertical margin and an absence of lympho-vascular invasion, poor differentiation and submucosal involvement on histological evaluation of the resected specimen...
December 16, 2017: World Journal of Gastrointestinal Endoscopy
Vito Domenico Corleto, Giulio Antonelli, Chiara Coluccio, Lucia D'Alba, Emilio di Giulio
Colonoscopy is a crucial diagnostic instrument for colorectal cancer screening and an adequate bowel preparation is definitely decisive for the success of the procedure. Especially in elderly patients, bowel cleansing is considered a big issue, because it is often poorly tolerated for many reasons (like inability to swallow large volume of liquids or unlikable taste); this can cause a suboptimal preparation that may lead to miss a neoplastic lesion. There is relatively little data about how to improve preparation tolerability...
November 16, 2017: World Journal of Gastrointestinal Endoscopy
Christian M Andrade, Brijesh Patel, Meghana Vellanki, Ambuj Kumar, Gitanjali Vidyarthi
AIM: To perform a systematic review and meta-analysis to assess the safety of conscious sedation in patients with obstructive sleep apnea (OSA). METHODS: A comprehensive electronic search of MEDLINE and EMBASE was performed from inception until March 1, 2015. In an effort to include unpublished data, abstracts from prior gastroenterological society meetings as well as other reference sources were interrogated. After study selection, two authors utilizing a standardized data extraction form collected the data independently...
November 16, 2017: World Journal of Gastrointestinal Endoscopy
Emad Qayed, Ravi Vora, Sara Levy, Roberd M Bostick
AIM: To investigate changes in polyp detection throughout fellowship training, and estimate colonoscopy volume required to achieve the adenoma detection rate (ADRs) and polyp detection rate (PDRs) of attending gastroenterologists. METHODS: We reviewed colonoscopies from July 1, 2009 to June 30, 2014. Fellows' procedural logs were used to retrieve colonoscopy procedural volumes, and these were treated as the time variable. Findings from screening colonoscopies were used to calculate colonoscopy outcomes for each fellow for the prior 50 colonoscopies at each time point...
November 16, 2017: World Journal of Gastrointestinal Endoscopy
Lei Lu, Hang-Bin Jin, Jian-Feng Yang, Xiao-Feng Zhang
Endoscopic pancreatic stenting has been widely used in various pancreatic conditions. With the increasing use of pancreatic stents, many complications have been recognized. Especially, proximal stent migration presents a serious condition because of subsequent pancreatic duct obstruction, impaired drainage, ductal dilation, and pancreatic pain. Although endoscopic retrieval is the preferred treatment for proximally migrated pancreatic stents, it is not always successful, resulting in conversion to surgery. To date, endoscopic ultrasound-guided pancreatic duct drainage (EUS-PD) has never been reported for treatment of pancreatic duct obstruction caused by proximally migrated pancreatic stent...
October 16, 2017: World Journal of Gastrointestinal Endoscopy
Masaki Murata, Mitsushige Sugimoto, Hiromitsu Ban, Taketo Otsuka, Toshiro Nakata, Masahide Fukuda, Osamu Inatomi, Shigeki Bamba, Ryoji Kushima, Akira Andoh
Cap polyposis is a rare intestinal disorder. Characteristic endoscopic findings are multiple inflammatory polypoid lesions covered by caps of fibrous purulent exudate. Although a specific treatment has not been established, some studies have suggested that eradication therapy for Helicobacter pylori (H. pylori) is effective. We report a case of a 20-year-old man with cap polyposis presenting with hematochezia. Colonoscopy showed the erythematous polyps with white caps from the sigmoid colon to rectum. Histopathological findings revealed elongated, tortuous, branched crypts lined by hyperplastic epithelium with a mild degree of fibromusculosis in the lamina propria...
October 16, 2017: World Journal of Gastrointestinal Endoscopy
Seifeldin Hakim, Srinivas R Rami Reddy, Mihaela Batke, Gregg Polidori, Mitchell S Cappell
The diagnosis and opportunity for endoscopic therapy of gastric or duodenal lesions may be missed at esophagogastroduodenoscopy (EGD) because of technical difficulty in intubating at EGD the postoperatively excluded stomach and proximal duodenum in patients status post Roux-en-Y gastric bypass (RYGB). Two cases are reported of acute upper gastrointestinal bleeding 10 or 11 years status post RYGB, performed for morbid obesity, in which the EGD was non-diagnostic due to failure to intubate the excluded stomach and proximal duodenum, whereas subsequent push enteroscopy or single balloon enteroscopy were diagnostic and revealed 4-cm-wide or 5-mm-wide bulbar ulcers and even permitted application of endoscopic therapy...
October 16, 2017: World Journal of Gastrointestinal Endoscopy
Takashi Uchiyama, Takuma Higurashi, Hitoshi Kuriyama, Yoshinobu Kondo, Yasuo Hata, Atsushi Nakajima
AIM: To evaluate the effectiveness of oral esomeprazole (EPZ) vs injectable omeprazole (OPZ) therapy to prevent hemorrhage after endoscopic submucosal dissection (ESD). METHODS: A case-control study was conducted using a quasi-randomized analysis with propensity score matching. A total of 258 patients were enrolled in this study. Patients were treated with either oral EPZ or injectable OPZ. The endpoint was the incidence of hemorrhage after ESD. RESULTS: Data of 71 subjects treated with oral EPZ and 172 subjects treated with injectable OPZ were analyzed...
October 16, 2017: World Journal of Gastrointestinal Endoscopy
Tanyaporn Chantarojanasiri, Pradermchai Kongkam
Elastography is one of technologies assisting diagnosis of solid pancreatic lesions (SPL). This technology has been previously used for measuring the stiffness of various organs based on a principle of "harder the lesions, higher chance for malignancy". Two elastography techniques; strain and shear wave elastography, are available. For endoscopic ultrasound (EUS), only the former is existing. To interpret results of EUS elastography for SPL, 3 methods are used: (1) pattern recognition; (2) strain ratio; and (3) strain histogram...
October 16, 2017: World Journal of Gastrointestinal Endoscopy
Scott R Friedberg, Jesse Lachter
Endoscopic ultrasound (EUS), developed in the 1980s, was initially predominantly used for guidance of fine needle aspiration; the last 25 years, however, have witnessed a major expansion of EUS to various applications, both diagnostic and therapeutic. EUS has become much more than a tool to differentiate different tissue densities; tissue can now be characterized in great detail using modalities such as elastography; the extent of tissue vascularity can now be learned with increasing precision. Using these various techniques, targets for biopsy can be precisely pinpointed...
October 16, 2017: World Journal of Gastrointestinal Endoscopy
Xiao-Qin Liu, Min Zhou, Wen-Xin Shi, Yi-Ying Qi, Hui Liu, Bin Li, Hong-Wei Xu
In the report, we describe a case of refractory benign esophageal strictures from esophageal cancer after an operation for the placement of three partially covered self-expanding metal stents (SEMSs), which were all embedded in the esophageal wall. Using the stent-in-stent technique, the three embedded SEMSs were successfully removed without significant complications. To the best of our knowledge, few cases of the successful removal of multiple embedded esophageal SEMSs have been reported in the literature...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
Si-Jie Hao, Wei-Jia Xu, Yang Di, Lie Yao, Hang He, Feng Yang, Chen Jin, Liang Zhong, De-Liang Fu
AIM: To compare efficacy and safety of endoscopic ultrasound (EUS)-guided and surgical drainage in pancreatic fluid collection management. METHODS: Data were obtained retrospectively from January 2012 to December 2016. Patients with pancreatic fluid collection were performed EUS-guided or surgical procedure. Main outcome measures including clinical efficiency, complication, duration of procedures, hospital stay and cost were analyzed. RESULTS: Thirty-six patients were enrolled into the study, including 14 in endoscopic group while 22 in the surgical group...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
Kristen Suchniak-Mussari, Charles E Dye, Matthew T Moyer, Abraham Mathew, Thomas J McGarrity, Eileen M Gagliardi, Jennifer L Maranki, John M Levenick
AIM: To evaluate the efficacy and safety of liquid nitrogen cryotherapy as a primary or rescue treatment for BE, with and without dysplasia, or intramucosal adenocarcinoma (IMC). METHODS: This was a retrospective, single-center study carried out in a tertiary care center including 45 patients with BE who was treatment-naïve or who had persistent intestinal metaplasia (IM), dysplasia, or IMC despite prior therapy. Barrett's mucosa was resected via EMR when clinically appropriate, then patients underwent cryotherapy until eradication or until deemed to have failed treatment...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
Alexander R Robertson, Nicholas A Kennedy, James A Robertson, Nicholas I Church, Colin L Noble
AIM: To compare colonoscopy quality with nitrous oxide gas (Entonox(®)) against intravenous conscious sedation using midazolam plus opioid. METHODS: A retrospective analysis was performed on a prospectively held database of 18608 colonoscopies carried out in Lothian health board hospitals between July 2013 and January 2016. The quality of colonoscopies performed with Entonox was compared to intravenous conscious sedation (abbreviated in this article as IVM). Furthermore, the quality of colonoscopies performed with an unmedicated group was compared to IVM...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
Yang Wu, Alexander Mullin, Alina Stoita
AIM: To compared individuals with serrated polyposis syndrome (SPS) to those with sessile serrated adenoma (SSA) and adenomas in the setting of endoscopists with high adenoma detection rates at a secondary and tertiary academic centre. METHODS: Retrospectively we collated the clinical, endoscopic and histological features of all patients with SPS at St Vincent's public and private hospital in the last 3 years. Patients were identified by searching through 2 pathology databases...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
Michael L DeSimone, Akwi W Asombang, Tyler M Berzin
For patients recovering from acute pancreatitis, the development of a pancreatic fluid collection (PFC) predicts a more complex course of recovery, and introduces difficult management decisions with regard to when, whether, and how the collection should be drained. Most PFCs resolve spontaneously and drainage is indicated only in pseudocysts and walled-off pancreatic necrosis when the collections are causing symptoms and/or local complications such as biliary obstruction. Historical approaches to PFC drainage have included surgical (open or laparoscopic cystgastrostomy or pancreatic debridement), and the placement of percutaneous drains...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
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