Changes over time of the refractory properties measured from ECAP in Pulsa CI100 cochlear implant recipients

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URI: https://hdl.handle.net/10481/99861
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Author
Ruiz Álvarez, Isaac Manuel; Torre Vega, Ángel De La; Valderrama Valenzuela, Joaquín Tomás; Roldán, Cristina; Sainz Quevedo, Manuel; Segura Luna, José Carlos; Vargas, Jose L
Editorial
The Journal of International Advanced Otology, AVES
Date
2011-07
Referencia bibliográfica
Alvarez IM, de la Torre A, Valderrama JT, Roldan C, Sainz M, Segura JC, Vargas JL. Changes over time of the refractory properties measured from ECAP in Pulsa CI100 cochlear implant recipients. The Journal of International Advanced Otology (2011) 7, 398-407.
Sponsorship
TEC2009-14245 project grant, funded by the Spanish MICINN; AP2009-3150 fellowship, funded by the Spanish Ministry of Science, Education and Culture
Abstract
Objective: The aim of this work is to present a longitudinal study of the refractory properties of the population of neurons involved in the generation of the evoked compound action potential (ECAP). Materials and Methods: The refractory properties of 12 subjects implanted with the Med-El Pulsar CI100 cochlear implant system have been examined by recording and analyzing ECAP responses collected under the masker-probe paradigm. Results: Our preliminary results show a statistically significant decrease of the refractory period and a statistically significant increment of the amplitudes of the ECAP responses after 3 months of cochlear implant experience. Conclusion: The evolution of the parameters describing ECAP responses reveals a decrease of the refractory period and an increment of the amplitudes associated to the use of the cochlear implant system. These changes take place in the first 3 months after the first switch-on of the cochlear implant processor and after this time the refractory period and the amplitudes tend to be stable.
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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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