Prevalence of External Auditory Canal Exostoses in Surfers
| Autor: | Brian J. F. Wong, Amir M. Karamzadeh, Karen Jo Doyle, Ednan Mushtaq, Phillip Boys, George Brauel, William Cervantes |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Adult
Male medicine.medical_specialty Cross-sectional study Population Audiology California Auditory canal Risk Factors Epidemiology medicine Humans Exostoses education Exostosis Swimming education.field_of_study business.industry Outcome measures Endoscopy General Medicine Middle Aged medicine.disease Cold Temperature Otorhinolaryngology Athletic Injuries Geographic regions Female Surgery External auditory canal stenosis business Ear Canal |
| Zdroj: | Archives of Otolaryngology–Head & Neck Surgery. 125:969 |
| ISSN: | 0886-4470 |
| DOI: | 10.1001/archotol.125.9.969 |
| Popis: | Objective To determine (1) the prevalence of external auditory exostoses in a population of surfers and (2) the relationship between the length of time spent surfing and the prevalence, severity, and location of the exostoses. Design Cross-sectional epidemiological study. Setting General community. Patients Three hundred seven avid surfers (93.5% males and 6.5% females; age distributions: 11.2% were ≤20, 67.9% were 21 to 40, 17.5% were 41 to 50, and 3.3% were >50 years). Main Outcome Measures Questionnaires focusing on surfing habits (number of years, geographic region, and number of days per year of surfing) were correlated with otoscopic findings. A simple grading system was devised, based on the degree of external auditory canal stenosis. Grades of normal, mild, moderate, and severe corresponded to 100%, 99% to 66%, 65% to 33%, and less than 33% effective patent surface area, respectively. Results There was a 73.5% overall prevalence of external auditory exostoses and a 19.2% overall prevalence of osteomas in the group studied. Of 441 ears with exostoses, 54.2% were mild, 23.6% were moderate, and 22.2% were severe. Of individuals who had surfed for 10 years or less, 44.7% had normal ear canals and only 6% had severely obstructed auditory canals. In comparison, in the group that had surfed for longer than 20 years, only 9.1% had normal auditory canals and 16.2% were severely affected. Of surfers with no exostoses, 61.1% had surfed for 10 years or less. In contrast, of surfers with severe exostoses, 82.4% had surfed for more than 10 years. Finally, the lesions seemed to affect all external auditory canal quadrants equally. Conclusion A positive association exists between the amount of time individuals spend surfing and the presence and severity of exostoses of the external auditory canal. |
| Databáze: | OpenAIRE |
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