Owing to their superior pharmacokinetic and pharmacodynamic profiles, potassium-competitive acid blockers (P-CABs) score over proton pump inhibitors (PPIs) in the treatment of gastric acid-related disorders and may provide clinical benefit in the management of these conditions. Previous studies have compared P-CABs with PPIs for treatment of gastric acid-related disorders, and current data show that P-CABs are non-inferior to PPIs in the treatment of erosive esophagitis and as maintenance therapy. P-CABs are useful for effective healing and as maintenance medications in patients with severe esophagitis. These drugs also aid with healing of peptic ulcers and artificial ulcers secondary to gastric endoscopic submucosal dissection (ESD). Few studies have discussed prevention of delayed ulcer bleeding after gastric ESD and ulcers associated with long-term nonsteroidal anti-inflammatory drug administration. Well-controlled, large-scale prospective studies are warranted in future to compare P-CABs with PPIs.

No abstract available.
Electric Impedance* ; Hydrogen-Ion Concentration* ; Proton Pumps*

OBJECTIVES: This study was designed to assess the change of heart rate variability (HRV) at resting, upright, and psychological stress in anxiety disorder patients. METHODS: HRV was measured at resting, upright, and psychological stress states in 60 anxiety disorder patients. We used visual analogue scale (VAS) score to assess tension and stress severity. Beck depression inventory (BDI) and state trait anxiety inventories I and II (STAI-I and II) were used to assess depression and anxiety severity. Differences between HRV indices were evaluated using paired t-tests. Gender difference analysis was accomplished with ANCOVA. RESULTS: SDNN (Standard deviation of normal RR intervals) and low frequency/high frequency (LF/HF) were significantly increased, while NN50, pNN50, and normalized HF (nHF) were significantly decreased in the upright position compared to resting state (p < 0.01). SDNN, root mean square of the differences of successive normal to normal intervals, and LF/HF were significantly increased, while nHF was significantly decreased in the psychological stress state compared to resting state (p < 0.01). SDNN, NN50, pNN50 were significantly lower in upright position compared to psychological stress and nVLF, nLF, nHF, and LF/HF showed no significant differences between them. CONCLUSION: The LF/HF ratio was significantly increased after both physical and psychological stress in anxiety disorder, but did not show a significant difference between these two stresses. Significant differences of SDNN, NN50, and pNN50 without any differences of nVLF, nLF, nHF, and LF/HF between two stresses might suggest that frequency domain analysis is more specific than time domain analysis.
Anxiety ; Anxiety Disorders* ; Autonomic Nervous System ; Depression ; Equipment and Supplies ; Heart Rate* ; Humans ; Stress, Psychological*

No abstract available.

No abstract available.
Esophagitis, Peptic ; Hernia, Hiatal ; Humans ; Manometry

Esophageal impedance pH monitoring provides quantitative data on esophageal acid exposure and has the ability to correlate the symptoms with acid exposure events. The nomenclature for the reflux patterns detected in impedance pH monitoring as well as the normal values have been determined. Data interpretation is similar to 24-hour pH monitoring, ie, searching for an increase in the number of reflux episodes, prolonged acid or volume exposure or increased numbers of proximal reflux events. In particular, the key clinical measurements for impedance testing on proton pump inhibitor therapy are the number of acid and non-acid reflux episodes and their relationship with the symptoms using the symptom index or symptom-association probability.
Electric Impedance ; Gastroesophageal Reflux ; Hydrogen-Ion Concentration ; Proton Pumps ; Reference Values

No abstract available.

BACKGROUND/AIMS: Hepatic angiomyolipoma (AML) is a rare mesenchymal tumor of the liver and demonstrates a marked histologic diversity. HMB-45 is a promising immunomarker for this tumor and especially helpful to diagnosis of some AMLs with unusual morphology. The purpose of this study was to better define the variable histologic feature of hepatic AML. METHODS: Eight hepatic AMLs were examined, and all of that were resection specimens. The diagnosis was confirmed by the presence of HMB-45 positive cells. Median age was 41.5 years old, and mean size of tumor was 8.94 cm. RESULTS: Conventional mixed type was 5 cases which showed myomatous, angiomatous and lipomatous component, and 3 cases were myomatous predominant. Variable patterns including spider web cell morphology, solid sheet-like and trabecular pattern were identified on myomatous component and variable amount and patterns of inflammatory cell infiltration was identified. CONCLUSIONS: With only histologic features, it is difficult to distinguish hepatic AML from other hepatic tumor including hepatocellular carcinoma or inflammatory pseudotumor. A correct diagnosis of hepatic AML is possible by a close histologic examination with immunohistochemical stainings such as HMB-45 which is important to patient's prognosis.
Adult ; Aged ; Angiomyolipoma/metabolism/*pathology/surgery ; Carcinoma, Hepatocellular/metabolism/*pathology/surgery ; Female ; Granuloma, Plasma Cell/metabolism/pathology ; Humans ; Liver Neoplasms/metabolism/*pathology/surgery ; Male ; Melanoma-Specific Antigens/*metabolism ; Middle Aged ; Tomography, X-Ray Computed

No abstract available.
Hypersensitivity*

In Korea, gastric cancer screening, either esophagogastroduodenoscopy or upper gastrointestinal series (UGIS), is performed biennially for adults aged 40 years or older. Screening endoscopy has been shown to be associated with localized cancer detection and better than UGIS. However, the diagnostic sensitivity of detecting cancer is not satisfactory. The National Endoscopy Quality Improvement (QI) program was initiated in 2009 to enhance the quality of medical institutions and improve the effectiveness of the National Cancer Screening Program (NCSP). The Korean Society of Gastrointestinal Endoscopy developed quality standards through a broad systematic review of other endoscopic quality guidelines and discussions with experts. The standards comprise five domains: qualifications of endoscopists, endoscopic unit facilities and equipment, endoscopic procedure, endoscopy outcomes, and endoscopic reprocessing. After 5 years of the QI program, feedback surveys showed that the perception of QI and endoscopic practice improved substantially in all domains of quality, but the quality standards need to be revised. How to avoid missing cancer in endoscopic procedures in daily practice was reviewed, which can be applied to the mass screening endoscopy. To improve the quality and effectiveness of NCSP, key performance indicators, acceptable quality standards, regular audit, and appropriate reimbursement are necessary.
Adult ; Early Detection of Cancer ; Endoscopy* ; Endoscopy, Digestive System ; Endoscopy, Gastrointestinal ; Humans ; Korea* ; Mass Screening* ; Qi ; Quality Improvement* ; Stomach Neoplasms