Effect of Removal of the Silicone Membrane on the Auditory Gain inTympanoplasties
Vliv odstranění silikonové blankyna sluchový zisk u tympanoplastik
Autoři hodnotí zlepšení sluchu po odstranění silikonové blanky (SB) použité k rekonstrukcibubínkové dutiny. Používají odstranitelné SB vyvedené ze středouší tenkou rukojetí dozvukovodu. Blanka se odstraní pouhým vytažením po zhojení, tj. za 3 - 6 týdnů. Většina otochirurgůponechává SB trvale ve středouší. Vytvořili jsme kontrolní skupinu 58 uší, u nichž byla SB použitapři revizní operaci a ponechána po dobu 4 - 6 měsíců, a tím bylo simulováno trvalé ponechání SB.U kontrolní skupiny byl pečlivě vyšetřen práh vzdušného vedení před a po odstranění SB a rozdílystatisticky zpracovány. U párového t-testu bylo signifikantní zlepšení na všech frekvencích, u nepárovéhot-testu jen na frekvenci 500 Hz.
Klíčová slova:
silikonová blanka, odstranění, sluchové zisky.
Authors:
M. Hroboň; J. Valvoda
Authors‘ workplace:
ORL oddělení VFN, Praha, přednosta doc. MUDr. M. Hroboň, CSc.
Published in:
Otorinolaryngol Foniatr, , 2002, No. 3, pp. 157-160.
Category:
Overview
The authors evaluated improved hearing after removal of the siliconemembrane (SM)used for reconstruction of the tympanic cavity. The authors use removable SM led from the middleear by a thin handle into the auditory meatus. The membrane is removed by simple traction afterhealing, i.e. after 3 - 6 weeks. The majority of otosurgenons leaves the SM permanently in the middleear. The authors created a control group of 58 ears where the SM was used during surgical revisionand left for 4 - 6 months which simulated permanent leaving of the SM.In the control group the threshold of air conduction before and after removal of theSMwas assessedand the differences were statistically evaluated. In the paired t-test there was significant improvementat all frequencies, in the non-paired t-test only at the frequency of 500 Hz.
Key words:
silicone membrane, removal, auditory gains.
Labels
Audiology Paediatric ENT ENT (Otorhinolaryngology)Article was published in
Otorhinolaryngology and Phoniatrics
2002 Issue 3
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