title: Clinical spectrum of fever of unknown origin among Indian children.
abstract: BACKGROUND
  Fever of unknown origin (FUO) is an important cause of morbidity and mortality in children, especially in tropical and developing countries.
  
  
  OBJECTIVE
  To determine the aetiology and outcome of FUO in Indian children.
  
  
  METHODS
  A hospital-based, prospective, observational study was conducted over a 1-year period (2006-2007). Children aged > or =3 months to 12 years who qualified for the definition of FUO were recruited. Initial evaluation included complete blood count, peripheral smear for malarial parasites, erythrocyte sedimentation rate (ESR), urine analysis and culture, blood culture, tuberculin test and chest X-ray.
  
  
  RESULTS
  Of 49 patients evaluated, a diagnosis was reached in 43 (88%). Infections were the predominant cause of FUO in 34 patients (69%). Enteric fever was the most common infection (14), followed by visceral leishmaniasis (10) and tuberculosis (5). The next most common cause was malignancy (6, 12%). Among the six undiagnosed patients, spontaneous resolution occurred in five whereas one child continued to be febrile without an established cause at the end of the study.
  
  
  CONCLUSIONS
  Repeated, thorough clinical examination and carefully selected laboratory examinations proved useful in the diagnosis of FUO. Serology (e.g. enteric fever) and bone marrow examination (e.g. leishmaniasis, malignancy) were the most useful diagnostic tests.
authors.affiliation: Department of Pediatrics, Maulana Azad Medical College, New Delhi, India. joshineha_26@rediffmail.com
authors.forename: N
authors.initials: N
authors.lastname: Joshi
authors.forename: K
authors.initials: K
authors.lastname: Rajeshwari
authors.forename: A P
authors.initials: AP
authors.lastname: Dubey
authors.forename: T
authors.initials: T
authors.lastname: Singh
authors.forename: R
authors.initials: R
authors.lastname: Kaur
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D005335:Fever of Unknown Origin / Q000209:etiology*; D006760:Hospitalization; D006801:Humans; D007194:India; D007223:Infant; D007898:Leishmaniasis, Visceral / Q000150:complications / Q000175:diagnosis; D008297:Male; D009369:Neoplasms / Q000150:complications / Q000175:diagnosis; D011379:Prognosis; D011446:Prospective Studies; D014376:Tuberculosis / Q000150:complications / Q000175:diagnosis; D014435:Typhoid Fever / Q000150:complications / Q000175:diagnosis