Otitis Media with Effusion - Accuracy of tympanometry in detecting fluid in the middle ears of children
| Autor: | Isteraj Shahabi, Habib Ur Rehman, Mohammad Javaid, Saeed Khan, Khurshid Anwar |
|---|---|
| Rok vydání: | 1969 |
| Předmět: |
medicine.medical_specialty
medicine.diagnostic_test business.industry medicine.medical_treatment General Medicine Tympanometry Myringotomy Otitis medicine.anatomical_structure Effusion otorhinolaryngologic diseases Head and neck surgery Middle ear Chi-square test Medicine Radiology medicine.symptom business Prospective cohort study |
| Zdroj: | Pakistan Journal of Medical Sciences. 32 |
| ISSN: | 1681-715X |
| Popis: | OBJECTIVE (1) The diagnostic accuracy of tympanometry in detecting fluid in the middle ear space in children with otitis media with effusion by comparing its findings with those of myringotomies. (2) Identify the age group most commonly affected by OME. METHODS This prospective study was conducted at the Department of ENT& Head and Neck Surgery, Postgraduate Medical Institute Hayatabad Medical complex, Peshawar from July 1, 2012 to April 30, 2015. Patients with suspicion of OME underwent tympanometry and later myringotomies. Using Jerger's classification, Type B tympanogram with normal canal volume was considered as conclusive evidence of fluid in the middle ear space. Its findings were compared with those of the respective myringotomies. From the data collected, the accuracy, sensitivity, specificity, positive predictive value and negative predictive values were calculated. RESULTS A total 117 ears of 63 patients were operated. The age range was 3 to 12 years. The commonest age group (58.7%) affected by OME was 6-8 years. Type B tympanogram with flat curve and normal canal volume was obtained in 71.4% of the ears. Comparison with myringotomy findings showed TP 85, TN 13, FP 5 and FN 14. The diagnostic value of tympanometry was; Sensitivity 85.85%, Specificity 72.22%, PPV 94.44%, NPV 48.14% and Accuracy of 83.76%. P value calculated using chi square test showed that there was significant difference between tympanometry and myringotomy findings in OME (p < 0.05). CONCLUSIONS OME is common in age group 6-8 years. Tympanogram Type B with normal canal volume is fairly sensitive in diagnosing this condition. However for occurrence of false positive results, final decision regarding management should be made on clinical findings and other supportive audiological tests. |
| Databáze: | OpenAIRE |
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