title: Diagnostic accuracy of fever as a measure of postoperative pulmonary complications.
abstract: Various prevalence rates have been estimated for pulmonary complications after abdominal surgery, and fever has been thought to be a diagnostic indicator. This study quantifies the diagnostic accuracy of fever as a measure of postoperative pulmonary complications and includes the sensitivity, specificity, and positive and negative predictive values. Assessments using fever and chest x-ray film were determined for 270 patients after elective intra-abdominal surgery in three hospitals with six practicing surgeons in a Southern Ontario city. With use of reliable chest x-ray reports indicating lung pathologic findings as positive for pulmonary complication, the prevalence of a positive finding was 57%. The prevalence of a fever (temperature greater than or equal to 38 degrees C) was 40%. The sensitivity and negative predictive value of fever were slightly below 50%, and the specificity and positive predictive value of fever was 68% and 66% respectively. Fever was an accurate indicator of x-ray evidence of atelectasis in only 56% of the subjects. Therefore, neither the presence nor the absence of fever can assure clinicians of the presence or absence of a postoperative pathologic pulmonary complication such as atelectasis.
authors.affiliation: Department of Nursing, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada.
authors.forename: J
authors.initials: J
authors.lastname: Roberts
authors.forename: W
authors.initials: W
authors.lastname: Barnes
authors.forename: M
authors.initials: M
authors.lastname: Pennock
authors.forename: G
authors.initials: G
authors.lastname: Browne
mesh_terms: D000005:Abdomen / Q000601:surgery*; D000293:Adolescent; D000328:Adult; D000368:Aged; D005334:Fever / Q000175:diagnosis*; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis*; D011379:Prognosis; D001261:Pulmonary Atelectasis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography