Reopening of the Gastroduodenal Pylorus After Its Closure in Rats

César, Jorge Miguel Schettino; Petroianu, Andy; Gouvêa, Agostinho Pinto; Alvin, Dierre Roberto

doi:10.1016/j.jss.2007.03.055

Cited by 3 publications

(6 citation statements)

References 25 publications

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“…Some authors report the deformities of the esophagus after contrast investigation in Barret's esophagus, which may assist in the screening of patients with gastro-esophageal reflux symptoms 5,7,8,13 . In the present study, no such changes were observed, which reveals the normal conditions of the specimens studied.…”

Section: Discussionmentioning

confidence: 99%

“…In the post-operative procedures of stomach and esophagus surgeries, it is possible to search for secondary deformities that appear after the surgical procedures, exactly when the trauma will not be surgical the esophagography may have sensitivity varying of 50-90% of the times [13][14][15][16] .…”

Section: Discussionmentioning

confidence: 99%

“…The exposure factors for an adequate basic radiological examination include peak kilovoltage (kVp) and milliamperage per second (mAs). The factors that evaluate the quality of the radiological image include: (I) density, which determines the degree the film is blackened (mAs); (II) contrast, which differentiates the density of the adjacent areas (kVp); (III) detail, which implies the clarity of structures (and that may vary due to movement, whether voluntary or not); and (IV) distortion, which is the wrong representation of size or format of the object as defined by the film-focus distance (FFD) and beam divergence 13,15 .…”

Section: Introductionmentioning

confidence: 99%

“…This normality model is fundamental for the comparison of post-surgical studies of the esophagus, stomach and duodenum of rodents, in future research 11,[13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

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Description of the technique of upper gastrointestinal series radiological examination for the evaluation of the esophagus, stomach and duodenum of Wistar female rats

et al. 2009

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Purpose:To evaluate the anatomy of female Wistar rats and the workability of contrast radiography as a technique to investigate the gastrointestinal series. Methods: Eight adult female Wistar rats were undergone to the contrast radiography as anteroposterior incidence and as posterior incidence in profile. The radiological examination was conducted at a 45° angle to the radiological table. Film-focus distance (FFD) was 100 cm, film-object distance (FOD) was 0 cm, and object-focus distance (OFD) was 100 cm. An orogastric probe was used to inject barium contrast at 5-min intervals, for a total of four applications. After the radiological examination, animals were necropsy for confirmation of the radiological findings, and the radiographs were the absence of the normal anatomy variations inspected and described by an experienced radiologist. Results: All the radiographs produced achieved satisfactory results in terms of position, exposure, location and quality. The upper esophageal sphincter (UES) was identified in the esophagus at the nerve C2, the lower esophageal sphincter (LES) was identified between spinal cord segments L1 and L2, the thoracic-abdominal junction was observed at T10, the esophageal-gastric junction (EGJ) at T13-L1, with the abdominal portion in the epigastric region. The stomach was observed mostly in the epigastric region, left hypochondrium, left and mesogastric flank. The duodenum findings presented higher variation, with most findings identified in the epigastric region, right hypochondrium, right flank and mesogastric ileal fossa at T13-L5. Conclusion: Contrast radiology is useful and may be employed to assess the anatomy of the animal being studied. The experimental model described afforded to fully identify all organs investigated, as well as other occasional relevant findings. No anatomical anomalies in the subsequent necropsy, confirming the radiographic findings. Key words: X-Rays. Esophagus. Stomach. Duodenum. Rats. RESUMOObjetivo: Avaliar a anatomia normal de ratas Wistar e a viabilidade do exame contrastado nesta população. Métodos: Foram submetidas ao exame oito ratas Wistar adultas, em incidência Ântero-Posterior e Perfil. A técnica consiste no posicionamento à 45º de inclinação em relação à mesa radiológica e colocado à Distância Foco Filme (DFF) de 100 cm, Distância Objeto Filme (DOF) de 0 cm, Distância Foco Objeto (DFO) de 100 cm. O contraste baritado foi injetado via sonda nasoesofágica, em intervalos de 5 minutos para cada fase, em um total de quatro fases. Após a realização do exame foi realizada necropsia dos animais para confirmação dos achados radiológicos e da ausência de variações da anatomia normal As radiografias foram analisadas e descritas por radiologista experiente no exame. Resultados: Todos os exames foram satisfatórios no que se refere ao posicionamento, exposição, localização e qualidade do exame. Foi identificado o esôfago com o Esfíncter Esofágico Superior (EES) ao nível de segunda vértebra cervical (C2) e Esfíncter Esofágico Inferior (EEI) entre a...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…This normality model is fundamental for the comparison of post-surgical studies of the esophagus, stomach and duodenum of rodents, in future research 11,[13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

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Description of the technique of upper gastrointestinal series radiological examination for the evaluation of the esophagus, stomach and duodenum of Wistar female rats

et al. 2009

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“…In USA single ventricle occurs in approximately 5 of every 100.000 live births. The embryology of single ventricle is still unknown [1]. Single ventricles may be classified based on the ventricular morphology as left ventricular type (Type A:75%), right ventricular type (Type B:20%) or interdeterminate type (Type C:10–14%).…”

Section: Discussionmentioning

confidence: 99%

Single ventricle, bicuspid aorta and interatrial wall aneurysm as a rare complex adult congenital heart disease: a case report

et al. 2009

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BackgroundSingle ventricle, bicuspid aortic valve and interatrial wall aneurysm in adulthood are a rare and unique case in medical literature. This presented case with congenital heart disease has never been treated surgically and clinical consequences seriously presented in adulthood.Case presentationA 27 year old man with complex congenital heart disease presented. At the age of six, the single ventricle was ultrasonographly diagnosed, but at age 27 clinical consequences started to be seriously present. We explored his history, clinical course, physical examination, laboratory findings, medical treatments and actual patient condition.ConclusionThe possibilities for surgical evaluation are presented.

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