1. Middle ear pressure in preschool age children: influence of respiratory illness, season, and picornavirus or bacteria in the nasopharynx.
- Author
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Winther B, Hayden FG, and Hendley JO
- Subjects
- Acoustic Impedance Tests, Bacterial Infections microbiology, Child, Child, Preschool, Follow-Up Studies, Humans, Infant, Nasopharynx microbiology, Nasopharynx virology, Picornaviridae genetics, Picornaviridae Infections virology, Pressure, Prognosis, RNA, Viral analysis, Reverse Transcriptase Polymerase Chain Reaction, Severity of Illness Index, Bacteria isolation & purification, Bacterial Infections physiopathology, Ear, Middle physiopathology, Picornaviridae isolation & purification, Picornaviridae Infections physiopathology, Respiratory Tract Diseases physiopathology, Seasons
- Abstract
Conclusion: Middle ear pressure was affected by respiratory illness and season; picornavirus (without illness) or pathogenic bacteria in the nasopharynx had no or minor effect., Objective: To examine the effect of respiratory illness, season, and nasopharyngeal microbial flora on middle ear pressure., Subjects and Methods: Thirteen children were followed longitudinally with daily recording of respiratory symptoms, weekly tympanometry, and weekly testing of nasal aspirate/washes for Streptococcus pneumoniae, Hemophilus influenzae, Moraxella catarrhalis by culture and for picornavirus by RT-PCR., Results: Abnormal middle ear pressure was present at 47% of 473 weekly visits by 11 preschool age (
- Published
- 2007
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