MARIA VALERIA SCHMIDT GOFFI GOMEZ
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/32 - Laboratório de Otorrinolaringologia, Hospital das Clínicas, Faculdade de Medicina
LIM/32 - Laboratório de Otorrinolaringologia, Hospital das Clínicas, Faculdade de Medicina
2 resultados
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- Use of remote control in the intraoperative telemetry of cochlear implant: multicentric study(2019) TANAMATI, Liege Franzini; GOFFI-GOMEZ, Maria Valeria Schmidt; MUNIZ, Lilian Ferreira; SAMUEL, Paola Angelica; WIEMES, Gislaine Richter Minhoto; LIMA, Daniele Penna; CURI, Silvia Badur; ONUKI, Lucia Cristina; QUEIROZ, Carla Fortunato; CAPISTRANO, Ana Karla Bigois; MORET, Adriane Lima Mortari; KIMURA, Marcia Yuri Tsumura; OYANGUREN, Valeria; MAUCH, HerbertIntroduction: The conventional evaluation of neural telemetry and impedance requires the use of the computer coupled to an interface, with software that provides visualization of the stimulus and response. Recently, a remote control (CR220 (R)) was launched in the market, that allows the performance of intraoperative tests with minimal instrumentation. Objective: To evaluate the agreement of the impedance values and neural telemetry thresholds, and the time of performance in the conventional procedure and by the remote control. Methods: Multicentric prospective cross-sectional study. Intraoperative evaluations of cochlear implants compatible with the use of CR220 (R) were included. The tests were carried out in the 22 electrodes to compare the time of performance in the two situations. The agreement of the neural telemetry threshold values obtained from five electrodes was analyzed, and the agreement of impedance was evaluated by the number of electrodes with altered values in each procedure. Results: There were no significant difference between the impedance values. There was a moderate to strong correlation between the electrically-evoked compound action potential thresholds. The mean time to perform the procedures using the CR220 was significantly lower than that with the conventional procedure. Conclusion: The use of the CR220 provided successful records for impedance telemetry and automatic neural response telemetry. (C) 2018 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial.
- Contribution of noise reduction pre-processing and microphone directionality strategies in the speech recognition in noise in adult cochlear implant users(2021) GOFFI-GOMEZ, Maria Valeria Schmidt; MUNIZ, Lilian; WIEMES, Gislaine; ONUKI, Lucia Cristina; CALONGA, Luciane; OSTERNE, Francisco Jose; KOS, Maria Isabel; CALDAS, Fernanda Ferreira; CARDOSO, Carolina; CAGNACCI, ByankaPurpose Refinement currently offered in new sound processors may improve noise listening capability reducing constant background noise and enhancing listening in challenging signal-to-noise conditions. This study aimed to identify whether the new version of speech processor preprocessing strategy contributes to speech recognition in background noise compared to the previous generation processor. Methods This was a multicentric prospective cross-sectional study. Post-lingually deaf adult patients, with at least 1 year of device use and speech recognition scores above 60% on HINT sentences in quiet were invited. Speech recognition performance in quiet and in noise with sound processors with previous and recent technologies was assessed under four conditions with speech coming from the front: (a) quiet (b) fixed noise coming from the front, (c) fixed noise coming from the back, and (d) adaptive noise ratios with noise coming from the front. Results Forty-seven cochlear implant users were included. No significant difference was found in quiet condition. Performance with the new processor was statistically better than the previous sound processor in all three noisy conditions (p < 0.05). With fixed noise coming from the back condition, speech recognition was 62.9% with the previous technology and 73.5% on the new one (p < 0.05). The mean speech recognition in noise was also statistically higher, with 5.8 dB and 7.1 dB for the newer and older technologies (p < 0.05), respectively. Conclusion New technology has shown to provide benefits regarding speech recognition in noise. In addition, the new background noise reduction technology, has shown to be effective and improves speech recognition in situations of more intense noise coming from behind.