title: Towards evidence based emergency medicine: best BETs from the Manchester Royal Infirmary. Detection of pneumoperitoneum on erect chest radiograph.
abstract: A short cut review was carried out to establish whether a normal erect chest radiograph excludes the diagnosis of perforated abdominal viscus. Altogether 37 papers were found using the reported search, of which two presented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these best papers are shown in table 1. A clinical bottom line is stated.
authors.affiliation: Department of Emergency Medicine, Manchester Royal Infirmary, Oxford Road, Manchester M13 9WL, UK.
authors.forename: John
authors.initials: J
authors.lastname: Butler
authors.forename: Bruce
authors.initials: B
authors.lastname: Martin
mesh_terms: D000007:Abdominal Injuries / Q000000981:diagnostic imaging; D000328:Adult; D019317:Evidence-Based Medicine; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000000981:diagnostic imaging; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging*; D011859:Radiography; D012680:Sensitivity and Specificity