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Sensitivity and specificity of nasal flexible fiberoptic endoscopy in the diagnosis of adenoid hypertrophy in children.

Abstract

OBJECTIVE
To evaluate nasal flexible fiberoptic endoscopy as a diagnostic test of adenoid hypertrophy in children with nasal obstruction.
METHODS
One hundred and thirty consecutive children aged 2-12 years were examined from May to October 2005. A questionnaire answered by parents or guardians was used to obtain a symptom score. Adenoid size was measured on radiographs of the nasal cavity using the Cohen and Konak method, and by nasal flexible fiberoptic endoscopy using the Wornald and Prescott classification. The criterion standard was the adenoid size demonstrated on radiograph.
RESULTS
The sensitivity of nasal flexible fiberoptic endoscopy was 92% (95% CI, 0.90-0.93), and specificity, 71% (95% CI, 0.70-0.72). The area under the ROC curve was 0.83 (95% CI, 0.76-0.90) at a p<0.001 level of significance. Kappa values were 0.94 (p<0.001) for interobserver agreement, 0.95 (p<0.001) for intraobserver agreement, and 0.54 (p<0.001) for agreement between tests.
CONCLUSIONS
Results suggest that nasal flexible fiberoptic endoscopy is a highly accurate diagnostic method. This examination can be performed easily in cooperative children; it is safe, objective and dynamic, and helps to establish diagnoses in difficult cases.

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  • Publisher Full Text
  • Authors

    Kindermann CA, Roithmann R, Lubianca Neto JF

    Institution

    Post-Graduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. cakindermann@terra.com.br

    Source

    International journal of pediatric otorhinolaryngology 72:1 2008 Jan pg 63-7

    MeSH

    Adenoids
    Child
    Child, Preschool
    Cross-Sectional Studies
    Endoscopy
    Female
    Humans
    Hypertrophy
    Male
    Nasal Obstruction
    Nose
    Observer Variation
    Questionnaires
    Sensitivity and Specificity

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    17983669