1.Natural History and Overlap of Functional Gastrointestinal Disorders.
The Korean Journal of Gastroenterology 2012;60(6):345-348
Functional gastrointestinal (GI) disorders are common in the general population. Based on the Rome III classification, these disorders are mutually exclusive disorders keeping the homogeneity of each functional GI disorder in research area. In contrast, many population and clinical studies have reported a considerably high rate of overlap between functional GI disorders. The overlap of functional GI disorders over other intestinal diseases might simply occur by chance due to a highly prevalent disorder. Moreover, functional GI disorders is considered a chronic stable disorder that may wax and wane for several years. However, a recent study about the natural history of functional GI disorders showed substantial transition among functional GI disorders over time. The natural history of functional GI disorders with overlapping other functional GI disorders are still in infancy and better understanding of these will be important in determining the efficacy of future therapeutic interventions.
Dyspepsia/epidemiology/pathology
;
Esophageal and Gastric Varices/epidemiology/pathology
;
Gastrointestinal Diseases/epidemiology/*pathology
;
Humans
;
Irritable Bowel Syndrome/epidemiology/pathology
;
Prevalence
2.Gastroesophageal Reflux Disease and Sleep Disorders: Evidence for a Causal Link and Therapeutic Implications.
Hye Kyung JUNG ; Rok Seon CHOUNG ; Nicholas J TALLEY
Journal of Neurogastroenterology and Motility 2010;16(1):22-29
Gastroesophageal reflux disease (GERD) and sleep disturbances are both common health problems. There is a significant association between disturbed sleep and GERD, and this may be bidirectional. Sleep disorders may induce gastrointestinal (GI) disturbances, while GI symptoms also may provoke or worsen sleep derangements. Reflux of gastric acid is a less frequent event during sleep, however, acid clearance mechanisms (including swallowing, salivation and primary esophageal motility) are impaired during sleep resulting in prolongation of acid contact time. Nighttime reflux can lead to sleep disturbance and sleep disturbance may further aggravate GERD by prolonged acid contact time and heightened sensory perception. This may facilitate the occurrence of complicated GERD and decreased quality of life. However, the interplay between sleep problems and GERD is complex, and there are still relatively limited data on this issue. Further investigation of sleep-related GERD may identify common pathophysiological themes and new therapeutic targets.
Aluminum Hydroxide
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Carbonates
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Deglutition
;
Gastric Acid
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Gastroesophageal Reflux
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Quality of Life
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Salivation
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Sleep Wake Disorders
4.Are the Outcomes of Treatment Different among the Monometric Subtypes of Achalasia?.
The Korean Journal of Gastroenterology 2013;61(5):297-299
No abstract available.
Dilatation/*methods
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Esophageal Achalasia/*diagnosis/*therapy
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Female
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Humans
;
Male
5.Prevalence of Hidden Gastroparesis in the Community: The Gastroparesis "Iceberg".
Enrique REY ; Rok Seon CHOUNG ; Cathy D SCHLECK ; Alan R ZINSMEISTER ; Nicholas J TALLEY ; G Richard LOCKE
Journal of Neurogastroenterology and Motility 2012;18(1):34-42
BACKGROUND/AIMS: The prevalence of diagnosed gastroparesis is 24.2/100,000 inhabitants, but a large group of people with gastroparesis-like symptoms have never had a gastric emptying (GE) test. Some of them may have undiagnosed gastroparesis. Our aim was to estimate the prevalence of hidden gastroparesis in the community. METHODS: The study was conducted in 2 parts: (1) Patients referred for a scintigraphic GE test completed a validated questionnaire (Bowel Disease Questionnaire). Multiple linear regression models to predict 2 hours and 4 hours GE rates were developed. (2) A revised Bowel Disease Questionnaire was mailed to a random sample of 4,194 Olmsted County residents. GE rates were estimated with the models for each subject and delayed GE was considered when they were lower than normal values. Hidden gastroparesis was defined in community subjects with predicted delayed GE that had not been diagnosed with gastroparesis prior to the survey. RESULTS: The regression models for GE rates were constructed using data from 450 patients. In addition to age and gender, the symptoms found significant were nausea/vomiting, early satiety, upper abdominal pain, bloating, loss of appetite and weight loss more than 7 pounds. 2,298 (55%) community subjects returned a questionnaire. Five subjects were excluded due to a prior diagnosis of gastroparesis. When models were applied to the community survey data, 42 (1.8%) subjects were estimated to have delayed GE. CONCLUSIONS: Delayed GE was estimated to occur in 1.8% of community subjects. Since the prevalence of diagnosed gastroparesis is low (0.02%), many subjects with gastroparesis may remain undiagnosed.
Abdominal Pain
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Appetite
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Surveys and Questionnaires
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Gastric Emptying
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Gastroparesis
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Humans
;
Linear Models
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Postal Service
;
Prevalence
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Surveys and Questionnaires
;
Reference Values
;
Weight Loss
6.Self-reported Sleep Impairment in Functional Dyspepsia and Irritable Bowel Syndrome
Seung Young KIM ; Rok Seon CHOUNG ; Seung Ku LEE ; Jung Wan CHOE ; Sung Woo JUNG ; Jong Jin HYUN ; Ja Seol KOO ; Sang Woo LEE ; Chol SHIN
Journal of Neurogastroenterology and Motility 2018;24(2):280-288
BACKGROUND/AIMS: Sleep impairment is a common complaint among patients with irritable bowel syndrome (IBS) and functional dyspepsia (FD). This study aimed to evaluate the prevalence of sleep impairment in FD or IBS patients, and to determine whether IBS-FD overlap induced more sleep disturbance than FD or IBS alone. METHODS: A population-based cohort in South Korea including 2251 subjects was asked about gastrointestinal symptoms including IBS and dyspepsia-related symptoms. In addition, sleep disturbance was measured using the Pittsburgh Sleep Quality Index and Epworth Sleepiness Scale questionnaires. One-way ANOVA and logistic regression were used to assess differences among the 4 groups (healthy subjects, IBS alone, FD alone, and IBS-FD overlap). RESULTS: Of 2251 subjects who were surveyed by questionnaire, 2031 responded (92.5% response rate) and were analyzed. The prevalence of IBS, FD, and IBS-FD overlap was 8.0% (95% confidence interval [CI], 6.8–9.2%), 4.8% (95% CI, 3.9–5.8%), and 1.8% (95% CI, 1.2–2.4%), respectively. FD alone, but not IBS alone, was significantly associated with a poorer sleep quality index (OR, 2.68; 95% CI, 1.43–5.01) and more daytime sleepiness (OR, 2.21; 95% CI, 1.14–4.30), compared to healthy subjects. IBS-FD overlap had the greatest likelihood of a poorer sleep quality index (OR, 3.88; 95% CI, 1.83–8.19), daytime sleepiness (OR, 2.47; 95% CI, 1.01–5.67), and insomnia (OR, 2.84; 95% CI, 1.39–5.82), compared to healthy subjects. CONCLUSION: A correlation between functional gastrointestinal disorders and sleep disturbance was demonstrated, which was significantly pronounced in the context of IBS-FD overlap.
Cohort Studies
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Dyspepsia
;
Gastrointestinal Diseases
;
Healthy Volunteers
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Humans
;
Irritable Bowel Syndrome
;
Korea
;
Logistic Models
;
Prevalence
;
Sleep Initiation and Maintenance Disorders
7.Two Cases of Uncommon Complication during Percutaneous Endoscopic Gastrostomy Tube Replacement and Treatment.
Hyun Joo LEE ; Rok Seon CHOUNG ; Min Seon PARK ; Jeung Hui PYO ; Seung Young KIM ; Jong Jin HYUN ; Sung Woo JUNG ; Ja Seol KOO ; Sang Woo LEE ; Jai Hyun CHOI
The Korean Journal of Gastroenterology 2014;63(2):120-124
We presented two interesting cases of gastrocolocutaneous fistula that occurred after percutaneous endoscopic gastrostomy (PEG) tube placement, and its management. This fistula is a rare complication that occurs after PEG insertion, which is an epithelial connection between mucosa of the stomach, colon, and skin. The management of the fistula is controversial, ranging from conservative to surgical intervention. Endoscopists should be aware of the possibility of gastrocolocutaneous fistula after PEG insertion, and should evaluate the risk factors that may contribute to the development of gastrocolocutaneous fistula before the procedure. We reviewed complications of gastrostomy tube insertion, symptoms of gastrocolocutaneous fistula, and its risk factors.
Aged
;
Cerebral Infarction/diagnosis
;
Digestive System Fistula/*etiology
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Endoscopy, Gastrointestinal
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Enteral Nutrition/*adverse effects/instrumentation
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Gastrostomy
;
Humans
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Male
;
Middle Aged
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Nervous System Diseases/diagnosis
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Risk Factors
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Tomography, X-Ray Computed
8.A Case of Dieulafoy's Lesion of the Terminal Ileum Treated by Colonoscopic Electrocoagulation.
Yong Sik KIM ; Rok Son CHOUNG ; Kyoung Oh KIM ; Dong Wook KOH ; Young Jig CHO ; Hyo Jung KIM ; Yoon Hong KIM ; Jae Seon KIM ; Young Tae BAK ; Chang Hong LEE
Korean Journal of Gastrointestinal Endoscopy 2001;23(6):499-502
Dieulafoy's lesion is an uncommon source of massive gastrointestinal hemorrhage and is understood to represent a tiny submucosal defect with fibrinoid necrosis at its base, overlying a large, tortuous, thick-walled artery in the muscularis mucosa. The lesion predominantly occurs in the proximal stomach, but may occur in all parts of the gastrointestinal tract including small bowel, colon and rectum. Moreover, Dieulafoy's lesion of the terminal ileum is very rare. We herein report a case of a patient who presented with massive hematochezia from Dieulafoy's lesion of the terminal ileum which was successfully controlled with endoscopic treatment by utilizing electrocoagulation.
Arteries
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Colon
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Electrocoagulation*
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Gastrointestinal Hemorrhage
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Gastrointestinal Tract
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Humans
;
Ileum*
;
Mucous Membrane
;
Necrosis
;
Rectum
;
Stomach
9.Small Bowel Pseudomelanosis Associated with Oral Iron Therapy.
Seung Young KIM ; Rok Seon CHOUNG ; Bo Sung KWON ; Jong Jin HYUN ; Sung Woo JUNG ; Ja Seol KOO ; Hyung Joon YIM ; Sang Woo LEE ; Jai Hyun CHOI
Journal of Korean Medical Science 2013;28(7):1103-1106
An accumulation of pigment deposits on mucosa, called melanosis or pseudomelanosis, of the small bowel is observed infrequently during endoscopic examination. We describe 6 cases of small bowel pseudomelanosis; the possible etiology of which was chronic iron intake. We observed numerous brown spots in duodenum, jejunum, and terminal ileum during upper and lower endoscopy. Interestingly, all patients have been taking oral iron for several years. Histology showed pigment depositions within macrophages of the lamina propria and a positive Prussian blue stain indicating hemosiderin deposition. Herein, we demonstrate that long term iron therapy may result in pseudomelanosis of small bowel, such as duodenum, jejunum, and ileum.
Adult
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Aged
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Duodenum/pathology
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Endoscopy
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Female
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Humans
;
Ileum/pathology
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Intestinal Mucosa/*pathology
;
Iron/administration & dosage/*adverse effects
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Jejunum/pathology
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Macrophages/cytology
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Male
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Melanosis/*chemically induced/diagnosis/pathology
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Middle Aged
10.Incidences of Serious Infections and Tuberculosis among Patients Receiving Anti-Tumor Necrosis Factor-alpha Therapy.
In Kyung YOO ; Rok Seon CHOUNG ; Jong Jin HYUN ; Seung Young KIM ; Sung Woo JUNG ; Ja Seol KOO ; Sang Woo LEE ; Jai Hyun CHOI ; Ho KIM ; Hong Sik LEE ; Bora KEUM ; Eun Sun KIM ; Yoon Tae JEEN
Yonsei Medical Journal 2014;55(2):442-448
PURPOSE: Anti-tumor necrosis factor-alpha (TNF-alpha) medications represent a major advancement in the management of chronic inflammatory diseases. However, these agents are associated with increased risks of tuberculosis (TB) and other serious infections. The aim of this study was to evaluate the incidences of such disease among tertiary hospitals in Korea. MATERIALS AND METHODS: We retrospectively studied patients who received anti-TNF-alpha therapy; we reviewed serious infections including TB that developed within 6 months after initiation of anti-TNF-alpha therapy. Data concerning patient demographics, types of anti-TNF-alpha agents, concomitant immunosuppressive drugs use, and infection details were collected. RESULTS: A total 175 patients treated with infliximab (n=72) or adalimumab (n=103) with the following conditions were enrolled: Crohn's disease, 34 (19.4%); ulcerative colitis, 20 (11.4%); ankylosing spondylitis, 82 (46.9%); and rheumatoid arthritis, 39 (22.2%). There were 18 cases (6.0%) of serious infections. The most common site of serious infection was the intra-abdomen (n=6), followed by TB (n=3), skin and soft tissue (n=3), bone and joints (n=2), ocular neurons (n=2), lower respiratory tract (n=1), and urinary tract (n=1). Of the 175 patients, only 3 cases showed development of TB. Furthermore, of all those who developed TB, none had taken anti-TB chemoprophylaxis prior to treatment with an anti-TNF agent due to negative screening results. CONCLUSION: Serious infections with anti-TNF-alpha therapy were uncommon among tertiary hospitals in Korea; TB was the second most frequent infection. Nevertheless, there were no TB reactivations after anti-TB chemoprophylaxis. Accordingly, physicians should be aware of TB in subjects undergoing anti-TNF-alpha therapy, especially in countries with a high prevalence of TB.
Arthritis, Rheumatoid
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Chemoprevention
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Colitis, Ulcerative
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Crohn Disease
;
Demography
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Humans
;
Incidence*
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Joints
;
Korea
;
Mass Screening
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Methods
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Necrosis*
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Neurons
;
Prevalence
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Respiratory System
;
Retrospective Studies
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Skin
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Spondylitis, Ankylosing
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Tertiary Care Centers
;
Tuberculosis*
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Tumor Necrosis Factor-alpha
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Urinary Tract