Factors associated with gastric and duodenal neuroendocrine tumors: A multicenter case-control study.

Background And Aims: The incidence of gastric and duodenal neuroendocrine tumors (GNET and DNET, respectively) is increasing, however associated factors of these diseases are not well known. Here, we investigated the factors associated with GNET and DNET.

Methods: Patients with GNET and DNET presenting at eight tertiary referral centers between 2001 and 2020 were included and compared with healthy controls who underwent upper endoscopic screening.

Early gastric cancer presenting as a typical submucosal tumor cured by endoscopic submucosal dissection: A case report.

Background: Submucosal tumor (SMT)-like gastric cancer is rare, and almost all cases undergo curative surgical treatment because the submucosal layer is usually deeply invaded by tumor cells or because histopathologic types of SMT-like gastric cancer are undifferentiated or poorly differentiated. No report has been issued on an SMT-like gastric cancer cured by endoscopic resection alone or on changes in the endoscopic features of this type of tumor over several years.

Case Summary: We describe an exceptional case of a 53-year-old male with a 1.

Influences of etiology and endoscopic appearance on the long-term outcomes of gastric antral vascular ectasia.

Background: Gastric antral vascular ectasia (GAVE) has diverse associations and presumed causes, which include liver cirrhosis, chronic kidney disease, and autoimmune disease. This heterogeneity of underlying disorders suggests that the pathogenesis of GAVE may be variable.

Aim: To compare the clinical features and long-term outcomes of GAVE according to endoscopic patterns and etiologies.

Primary gastric dedifferentiated liposarcoma resected endoscopically: A case report.

Background: Liposarcoma is one of the most common adult mesenchymal tumors but is uncommon in the gastrointestinal tract and extremely rare in the stomach. Furthermore, the histological subtypes of liposarcoma usually reported in the stomach are well-differentiated or myxoid, and few reports have been issued on small-sized gastric liposarcomas resected endoscopically and followed up. Herein, we report a case of primary gastric dedifferentiated liposarcoma (DL) that was resected endoscopically.

Clinical outcomes of endoscopic resection of superficial nonampullary duodenal epithelial tumors: A 10-year retrospective, single-center study.

Background: Although premalignant duodenal lesions such as adenomas are uncommon, the incidences of these lesions have increased in recent times, and thus, the demand for minimally invasive treatments such as endoscopic resection (ER) has also increased. However, ER in the duodenum is more challenging than ER in other locations of the gastrointestinal tract.

Aim: To evaluate the safety and efficacy of ER for superficial nonampullary duodenal epithelial tumors (SNADETs).

The Clinical and Metabolic Effects of Intragastric Balloon on Morbid Obesity and Its Related Comorbidities.

Obesity is becoming increasingly prevalent worldwide, and its metabolic sequelae lead to a significant burden on healthcare resources. Options for the management of obesity include lifestyle modification, pharmacological treatment, surgery, and endoscopic bariatric therapies (EBTs). Among these, EBTs are more effective than diet and lifestyle modification and are less invasive than bariatric surgery.

Clinical characteristics of coronavirus disease 2019 patients with diarrhea in Daegu.

Background/aims: Coronavirus disease 2019 (COVID-19) can reportedly cause gastrointestinal symptoms. Therefore, we investigated the clinical characteristics of COVID-19 patients with diarrhea.

Methods: We included 118 COVID-19 patients admitted to a single hospital from February 20 to March 31, 2020.

Cytomegalovirus ileo-pancolitis presenting as toxic megacolon in an immunocompetent patient: A case report.

Background: Cytomegalovirus (CMV) enterocolitis presenting in the form of pancolitis or involving the small and large intestines in an immunocompetent patient is rarely encountered, and CMV enterocolitis presenting with a serious complication, such as toxic megacolon, in an immunocompetent adult has only been reported on a few occasions.

Case Summary: We describe the case of a 70-year-old male with no history of inflammatory bowel disease or immunodeficiency who presented with toxic megacolon and subsequently developed massive hemorrhage as a complication of CMV ileo-pancolitis. The patient was referred to our institute for abdominal pain and distension.

Risk factors of recurrent pancreatitis after first acute pancreatitis attack: a retrospective cohort study.

Few studies have been conducted in Asia on the recurrence of acute pancreatitis (AP). This study was designed to investigate characteristics of the disease to predict recurrence. We retrospectively analyzed 617 patients that experienced a first AP attack between January 2009 and December 2014.

Successful endoscopic hemoclipping and conservative management for typhoid fever complicated by massive intestinal bleeding and acute pancreatitis: Case report.

Rationale: Massive intestinal bleeding as a complication of typhoid fever has rarely been reported due to the advent of antibiotics. In addition, although several literatures have been issued on the use and success of endoscopic modalities in cases of massive typhoid ulcer bleeding, few have described hemostasis by endoscopic hemoclipping.

Patient Concerns: We describe a case of a 61-year-old Korean female who presented acute episodes of massive lower gastrointestinal bleeding during admission to local hospital with a provisional diagnosis of acute gastroenteritis.

Massive esophageal bleeding in long-standing achalasia complicated by esophageal carcinoma and aspirin-induced stasis ulcer: Case report.

Rationale: Esophageal hemorrhage may occasionally develop subsequent to esophagitis and stasis ulcer, but potentially fatal esophageal bleeding is very uncommon in primary achalasia.

Patient Concerns: We describe a case of a 64-year-old man with long-standing achalasia and megaesophagus who presented acute episodes of life-threatening upper gastrointestinal bleeding.

Diagnoses And Interventions: Five esophagogastroduodenoscopies (EGD) were conducted and during each large amount of static food, bloody material, and clots should be removed from the esophagus because of impaired esophageal transit.

Efficacy of 0.5-L 1-L polyethylene glycol containing ascorbic acid as additional colon cleansing methods for inadequate bowel preparation as expected by last stool examination before colonoscopy.

Background: No consensus has been reached in patients suspected of having inadequate bowel preparation regarding optimal salvage methods, which negatively affects the efficacy and quality of colonoscopy. The most ideal and reasonable rescue option involves early suspicion and identification of patients with inadequate preparation before sedation, additional oral ingestion of a suitable preparation formulation, and same-day colonoscopy.

Aim: To compare 0.

On-demand versus half-dose continuous therapy with esomeprazole for maintenance treatment of gastroesophageal reflux disease: A randomized comparative study.

Background And Aims: No consensus has been established regarding optimal long-term maintenance therapy in symptomatic gastroesophageal reflux disease (GERD). The aim of this study was to compare the efficacies of on-demand and continuous therapy with esomeprazole as maintenance treatments for GERD.

Methods: Patients with upper gastrointestinal (GI) endoscopy-proven GERD who received initial proton pump inhibitor (PPI) therapy for 8 weeks were randomized to an on-demand group (esomeprazole 40 mg) or a continuous group (esomeprazole 20 mg).

Comparison of clinical course and outcome of acute pancreatitis according to the two main etiologies: alcohol and gallstone.

Background: Studies concerning clinical course and outcome of acute pancreatitis (AP) according to etiologies were rare, especially after year 2000. This study was designed to investigate the difference between the clinical course of alcoholic and biliary AP.

Methods: Of the 153 patients diagnosed as AP with a first attack between January 2011 and January 2013, extensive clinical data of 50 patients with AP caused by alcohol and 76 patients with AP caused by gallstone were analyzed retrospectively.

Comparison of scoring systems in predicting the severity of acute pancreatitis.

Aim: To investigate the prognostic usefulness of several existing scoring systems in predicting the severity of acute pancreatitis (AP).

Methods: We retrospectively analyzed the prospectively collected clinical database from consecutive patients with AP in our institution between January 2011 and December 2012. Ranson, Acute Physiology and Chronic Health Evaluation (APACHE)-II, and bedside index for severity in acute pancreatitis (BISAP) scores, and computed tomography severity index (CTSI) of all patients were calculated.

Long-term follow-up study of gallbladder in situ after endoscopic common duct stone removal in Korean patients.

Background: Although there has been much debate over the fate of the gallbladder (GB) after endoscopic common bile duct (CBD) stone removal, subsequent cholecystectomy is generally recommended in patients with GB stones to prevent further biliary complications. The aims of this study were to assess the natural course of the patients with GB in situ after endoscopic CBD stone removal and to evaluate the necessity of prophylactic cholecystectomy.

Methods: Four hundred sixty-one patients who had undergone CBD stone removal at Yeungnam University Hospital between January 2000 and December 2004 were retrospectively analyzed, and 232 patients were ultimately enrolled in this study.

[Clinical significance of the large intestinal wall thickening detected by abdominal computed tomography].

Background/aims: Bowel wall thickening on CT has been reported to reflect colorectal carcinoma and colitis. The aim of this study was to evaluate the clinical significance of the large intestinal wall thickening on CT.

Methods: Between January 2006 and August 2010, medical records of 815 patients who underwent endoscopy after CT scans within 1 month were reviewed retrospectively.

[Clinical outcomes in ischemic colitis: according to the colonoscopic extent and feature].

Background/aims: Ischemic colitis (IC) usually occurs in the elderly population and has a various clinical presentations from mild to severe forms. The aim of this study was to investigate the clinical outcomes according to the involved sites and colonoscopic findings in IC.

Methods: We retrospectively analyzed the medical records of 77 patients who had diagnosed with IC between January 2000 and July 2010.

Anorectal and gastric peripheral T-cell lymphoma, unspecified in a non-AIDS patient.

Anorectum is a rare location for malignant lymphoma. Involvement of is rare even for the lynphoma associated with acquired immune deficiency syndrome (AIDS), and AIDS has a relatively increased frequency of anorectal lymphoma. Most lymphomas in AIDS patients are of a B-cell origin, and T-cell lymphoma of the gastrointestinal tract is extremely rare.