Ventilation tube duration versus design.
Two ventilation tube designs were simultaneously compared in children in order to determine their relative rates of extrusion. The results show a twofold difference between the extrusion of the Shepard compared to the "Sheehy" or collar-button pattern of tube. Subjected to statistical analysis, these findings are highly significant.
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PJ
Moore
D002648:Child; D004867:Equipment Design; D006801:Humans; D008876:Middle Ear Ventilation / Q000295:instrumentation; D010033:Otitis Media / Q000628:therapy; D013997:Time Factors