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1.
The Korean Journal of Gastroenterology ; : 252-257, 2011.
Article in Korean | WPRIM | ID: wpr-212481

ABSTRACT

BACKGROUND/AIMS: In the Helicobacter pylori (H. Pylori)-negative normal stomach, collecting venules are visible over all the gastric body as numerous minute points evaluated with standard endoscopy. This finding was termed regular arrangement of collecting venules (RAC), and its absence suggests H. Pylori gastritis. The aim of this study was to evaluate the correlation between the RAC and rapid urease test. METHODS: Two hundred sixty three consecutive adults undergoing upper digestive endoscopy and rapid urease test were included. The lesser curvature of the lower corpus was evaluated for the RAC pattern using a standard endoscope and different hemoglobin index. Two biopsies from the lesser curvature of the antrum and the greater curvature of the body were collected for rapid urease test. RESULTS: H. Pylori were detected in 51.3% (135/263) patients. Of the 57 patients with H. Pylori-negative normal stomachs 53 patients (93%) had RAC. As a determinant of the normal stomach without H. Pylori infection, the presence of RAC had 41.4% sensitivity, 97.0% specificity, 93.0% positive predictive value and 63.6% negative predictive value. CONCLUSIONS: RAC-positive finding by standard endoscopy showed high positive predictive value and specificity of H. Pylori-negative normal stomach. RAC-positive finding by standard endoscopy could be an useful finding to predict H. Pylori negativity.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Diagnosis, Differential , Endoscopy, Gastrointestinal , Gastritis/microbiology , Gastroscopy , Helicobacter Infections/diagnosis , Helicobacter pylori , Hemoglobins , Pyloric Antrum/blood supply , Retrospective Studies , Sensitivity and Specificity , Urease/metabolism , Venules/anatomy & histology
2.
Acta gastroenterol. latinoam ; 26(4): 237-41, 1996. ilus, tab
Article in Spanish | LILACS | ID: lil-197176

ABSTRACT

La ectasia vascular del antro (EVA) o watermelon stomach (WS) es una causa poco frecuente de anemia o hemorragia digestiva alta manifesta en pacientes de edad avanzada. Presentamos 5 apcientes, todas mujeres, edad promedio 79 años, 4 anémicas de larga evolución y 1 con melena. Tres tenían endoscopía típica de WS, 2 tenían patente difusa. Las 5 con anatomía patológica positiva: ectasias vasculares y/o microtrombos fíbrinosos y proliferación fibromuscular en la l mina propria. La biopesia esdoscópica es tan fiel como el estudio de la pieza de antrectomía. Ninguna tenía hipertensión portal, aunque la EVA sería una entidad diferente a la gastropatía vascular del cirrótico. El tratamiento conssitió en electrocoagulación monopolar de las lesiones tras fracaso del tratamiento médico en 1 caso, corticoterpia mas ferroterapia en 3, mientras que el restante no requiere tratamiento por el momento. Conclusiones: la EVA debe tenerse presente en pacientes anémicos crónicos sien diagnóstico, de edad avanzada. Las im genes endoscópicas no siempre son las típicas del estómago en sandía (WS). Se debe biopsiar el antro gastrico ante la duda. Si no responden al tratamiento con corticoides y/o hierro, el tratamiento de elección es el laser o el "heat electrocoagulación monopolar o la esclerosis. La cirurgía es el último recurso a aplicar.


Subject(s)
Aged , Female , Humans , Anemia, Iron-Deficiency/etiology , Pyloric Antrum/blood supply , Vascular Diseases/diagnosis , Aged, 80 and over , Anemia, Iron-Deficiency/drug therapy , Biopsy , Chronic Disease , Electrocoagulation , Endoscopy, Digestive System , Follow-Up Studies , Hyperplasia/diagnosis , Hyperplasia/drug therapy , Hyperplasia/pathology , Iron/therapeutic use , Melena/diagnosis , Melena/drug therapy , Melena/etiology , Prednisolone/therapeutic use , Pyloric Antrum/pathology , Vascular Diseases/complications , Vascular Diseases/drug therapy
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