OBJECTIVE: The present study was aimed at evaluating radiological findings of delayed postoperative upper gastrointestinal series in patients submitted to Fobi-Capella surgery. MATERIALS AND METHODS: Radiological studies of 41 patients, six to nine months following the surgery. RESULTS: The following pathological alterations have been found: hiatal hernia (17%), gastroesophageal reflux disease (19.5%) and sliding of the silastic ring (4.8%). Least frequent findings have been the following: enterocutaneous fistula (2.4%), stenosis of the gastric pouch outlet (2.4%), bezoar (2.4%), and non-visualization of the silastic ring caused by its removal due to patient intolerance (2.4%). Anatomical alterations resulting from the surgery have been clearly demonstrated. CONCLUSION: The present study could demonstrate anatomical alterations and complications resulting from Fobi-Capella surgery.

Keywords: Morbid obesity, Gastroplasty, Upper gastrointestinal series, Bariatric surgery, Fobi-Capella

OBJECTIVE: To identify and classify the radiographic patterns of megaesophagus in Chagas disease, as seen on esophagograms and chest X-rays. MATERIALS AND METHODS: This was a prospective study of 35 patients diagnosed with esophageal disease via manometry. The changes found on esophagograms were stratified according to Rezende's classification, divided into four categories (grades I through IV) determined by the degree of dilatation and impairement of esophageal motility. We subsequently correlated that ranking with the chest X-ray findings: gastric air bubble; air-fluid level; and mediastinal widening. RESULTS: Among the 35 patients, the esophageal disease was classified as grade I in 9 (25.7%), grade II in 3 (8.6%), grade III in 19 (54.3%), and grade IV in 4 (11.4%). None of the patients with grade I esophageal disease showed changes on chest X-rays. In two of the three patients with grade II disease, there was no gastric air-bubble, although there were no other findings in any of the grade II patients. Of the 19 patients with grade III disease, 15 had abnormal findings on X-rays. All four patients with grade IV disease showed abnormalities. CONCLUSION: The use of Rezende's classification is feasible, encompassing findings ranging from the subtle changes that characterize the initial phases of esophageal disease to the complete akinesia seen in dolicomegaesophagus. Chest X-ray findings are more common in patients with advanced stages of the disease and indicate the degree of esophageal involvement in Chagas disease.

Keywords: Esophageal achalasia/radiography; Esophagus/radiography; Radiography, thoracic.