Risk factors and correlations of immediate, early delayed, and late delayed bleeding associated with endoscopic resection for gastric neoplasms.

Background: Bleeding is a major complication following endoscopic resection (ER) of gastric mucosal lesions. We aimed to determine the risk factors for post-ER bleeding and their correlations according to the time elapsed since the procedure.

Methods: We retrospectively enrolled 670 lesions in 610 patients who underwent ER between March 2009 and December 2010.

The diagnostic value of a digital rectal examination compared with high-resolution anorectal manometry in patients with chronic constipation and fecal incontinence.

Objectives: Digital rectal examination (DRE) is a simple clinical method to diagnose anorectal disorders. High-resolution antorectal manometry (HRAM) based on a spatiotemporal plot is expected to promote improved diagnostic accuracy. However, there are no reports comparing the effectiveness of DRE and HRAM.

Delayed Bleeding Rate According to the Forrest Classification in Second-Look Endoscopy After Endoscopic Submucosal Dissection.

Background And Aim: Forrest classification is a valid tool to predict rebleeding rate in peptic ulcer, not in post-endoscopic resection ulcer. We evaluated the delayed bleeding rate in Forrest classification II and III lesions when they were not treated in second-look endoscopy.

Methods: Between July 2011 and February 2012, 706 lesions in 656 consecutive patients who underwent second-look endoscopy performed on the second day after endoscopic submucosal dissection (ESD) were prospectively investigated.

Long-term efficacy of biofeedback therapy in patients with dyssynergic defecation: results of a median 44 months follow-up.

Background: The beneficial effect of biofeedback therapy (BFT) over a period of more than 2 years has not been studied in a large group of patients. The aim of this study was to evaluate the long-term efficacy of BFT for dyssynergic defecation (DD).

Methods: We evaluated the results for 347 consecutive constipated patients with DD who underwent BFT for a median of five sessions between 2004 and 2009.

Efficacy and complications of enteral feeding tube insertion after liver transplantation.

Background: Adequate nutritional support for patients undergoing major surgery significantly affects postoperative recovery. Data on enteral feeding after liver transplantation (LT) are scarce. The aim of this work was to determine the efficacy and complications of feeding tubes inserted with the use of fluoroscopic assistance, endoscopic assistance, or transperitoneal jejunostomy in patients who underwent LT.

Clinical outcomes of endoscopic resection for gastric neoplasms in the pylorus.

Background: Endoscopic resection for gastric neoplasms in the pylorus is a technically difficult procedure. We investigated clinical outcomes to determine the feasibility and effectiveness of endoscopic resection for gastric neoplasms in the pylorus.

Methods: Subjects who underwent endoscopic resection for gastric neoplasms in the pylorus between January 1997 and February 2012 were eligible.

Polypoid arteriovenous malformation presenting with jejunojejunal intussusceptions in an adult.

Jejunal polypoid arteriovenous malformations (AVMs) and jejunojejunal intussusceptions are both rare. Here, we present the case of a 61-year-old woman who suffered intermittent episodes of abdominal pain over the course of 13 years. A computed tomography scan of her abdomen and pelvis revealed a distal jejunojejunal intussusception.

Clinical and Endoscopic Features of Metastatic Tumors in the Stomach.

Background/aims: Metastasis to the stomach is rare. The aim of this study was to describe and analyze the clinical outcomes of cancers that metastasized to the stomach.

Methods: We reviewed the clinicopathological aspects of patients with gastric metastases from solid organ tumors.

Clinical significance of intensive endoscopic screening for synchronous esophageal neoplasm in patients with head and neck squamous cell carcinoma.

Objectives: Patients with head and neck squamous cell carcinoma (HNSCC) often develop second primary tumors in the upper aerodigestive tract. Early detection of synchronous esophageal squamous cell neoplasm (ESCN) is important because the prognosis of HNSCC can be affected by the statuses of second primary tumors.

Methods: In a prospective study, 308 patients with HNSCC were screened for synchronous ESCN between May 2010 and April 2012.

Endoscopic resection for synchronous esophageal squamous cell carcinoma and gastric adenocarcinoma in early stage is a possible alternative to surgery.

Background/aims: We investigated the clinical outcomes according to the method of treatment in synchronous esophageal and gastric cancer.

Methods: Synchronous esophageal squamous cell carcinoma and gastric adenocarcinoma were diagnosed in 79 patients between 1996 and 2010. We divided the patients into four groups according to treatment; Group 1 received surgical resection for both cancers or surgery for gastric cancer with chemoradiotherapy for esophageal cancer (n=27); Group 2 was treated by endoscopic resection with or without additional treatment (n=14); Group 3 received chemoradiotherapy only (n=18); and Group 4 received supportive care only (n=20).

Clinical significance of early detection of esophageal cancer in patients with head and neck cancer.

Background/aims: The efficacy of surveillance for esopha-geal squamous cell neoplasia (ESCN) in patients with head and neck squamous cell carcinoma (HNSCC) remains contro-versial. Our study aimed to provide clinical data concerning the necessity of surveillance for detecting early ESCN in pa-tients with HNSCC.

Methods: We retrospectively reviewed the data from 714 patients who were pathologically confirmed as having HNSCC (n=236 oral cavity cancers, 137 oropha-ryngeal cancers, 87 hypopharyngeal cancers, and 254 la-ryngeal cancers).

Pneumonia after endoscopic resection for gastric neoplasm.

Background: Pneumonia following endoscopic procedures may affect the clinical course and prolong hospital stay.

Aim: To investigate the incidence and risk factors for pneumonia after endoscopic resection (ER) for gastric neoplasm.

Methods: Subjects who underwent ER for gastric neoplasm at the Asan Medical Center from January 1997 to March 2013 were included.

A needle penetrating the stomach cavity after acupuncture.

Although acupuncture is known as a safe procedure that is widely used in many countries, complications including infection, hemorrhage, hematoma, pneumothorax, nerve damage, and cardiac tamponade have been reported. A needle penetrating the stomach after acupuncture, however, is very rare. Here, we report the case of 47-year-old woman who experienced abdominal pain 2 days after receiving acupuncture.

Constipation misperception is associated with gender, marital status, treatment utilization and constipation symptoms experienced.

Background/aims: It is essential that clinicians have an understanding of patients' perceptions of constipation as well as constipation mis-perception (CM), which can be defined as failure to recognize the six constipation symptoms (infrequency, straining, hard stool, incomplete evacuation, anorectal obstruction or manual maneuver). The aims of our study were to identify the prevalence of CM and its association with demographics and clinical features.

Methods: This nationwide survey included 625 self-reported constipated subjects (431 females; mean age, 41.

An arteriovenous malformation in the jejunum mimicking a gastrointestinal stromal tumor.

A 51-year-old man visited the tertiary-care hospital with a 2-week history of dizziness and dyspnea on exertion. The initial hemoglobin level was 5.8 g/dL, without any history of hematochezia or melena.

Clinical characteristics and outcomes for gastric cancer patients aged 18-30 years.

Background: There is little known about the clinicopathological features and the predictors of survival in extremely young adult patients aged 18-30 years. The aim of this study was to identify clinicopathological features and clinical outcomes for the overall population and for a resectable subgroup of gastric cancer patients aged 18-30 years.

Methods: From January 2004 to December 2010, 207 patients aged between 18 and 30 years old were diagnosed with gastric cancer and treated at the Asan Medical Center.

Endoscopic resection of gastric neoplasm in solid-organ transplant recipients.

Background: The aim of this study was to investigate the feasibility and safety of endoscopic resection of gastric neoplasm in solid-organ transplant (SOT) recipients.

Methods: Between January 1994 and December 2011, the results of endoscopic resection of 17 lesions in 15 consecutive patients who had previously undergone SOT at Asan Medical Center were retrospectively evaluated. We compared clinical outcomes of this group with 1:5 matched non-SOT patients treated by endoscopic resection.

Normal values for high-resolution anorectal manometry/topography in a healthy Korean population and the effects of gender and body mass index.

Background: High-resolution manometry (HRM) based on spatiotemporal plots is increasingly being used. The aim this study was to evaluate, for the first time, the influence of gender, with adjustment for age, body mass index (BMI), and vaginal delivery, on anorectal functions in asymptomatic adults.

Methods: Fifty-four asymptomatic healthy subjects (M : F = 27 : 27; age = 20-67 years) who were matched by age and gender were enrolled prospectively.

Effect of Helicobacter pylori eradication on metachronous recurrence after endoscopic resection of gastric neoplasm.

Objectives: Although many epidemiologic studies have shown that Helicobacter pylori (H. pylori) eradication has prophylactic effects on gastric cancer, their results are less clear in high-risk populations. We conducted this study to examine whether H.

Discrepancy between endoscopic forceps biopsy and endoscopic resection in gastric epithelial neoplasia.

Background: Endoscopic forceps biopsy (EFB) is a major diagnostic procedure for gastric epithelial neoplasia (GEN). However, discrepancy between the result of EFB and endoscopic resection (ER) is not uncommon. Thus, there is controversy over whether specimens obtained by EFB are optimal for diagnosis of GEN.