IVONE FERREIRA NEVES LOBO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Fisioterapia, Fonoaudiologia e Terapia Ocupacional, Faculdade de Medicina
17 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 17
- Caracterização eletrofisiológica da audição em indivíduos com Síndrome de Down(2016) KAZAN, Hellen Medeiros; SAMELLI, Alessandra Giannella; NEVES-LOBO, Ivone Ferreira; MAGLIARO, Fernanda Cristina Leite; LIMONGI, Suelly Cecília Olivan; MATAS, Carla GentileABSTRACT Introduction Few studies have performed Brainstem (BAEP) and P300 Auditory Evoked Potentials simultaneously to assess central auditory pathways in normal hearing individuals with Down syndrome (DS), mainly because of the difficulty in applying these procedures to this population. Previous studies have suggested that individuals with DS might present different patterns of response compared with those of individuals with typical development; nevertheless, the identification of these potentials would be crucial for the establishment of an accurate audiological diagnosis. Purpose To characterize BAEP and P300 in normal-hearing individuals with DS. Methods BAEP and P300 were analyzed in 17 individuals with DS and in 21 individuals with typical development aged 7 to 15 years. The results were quantitatively and qualitatively analyzed using descriptive measures and hypothesis tests. Results In the quantitative analysis, latency values were lower in the BAEP for the DS group, with statistically significant difference for wave V and interpeaks III-V and I-V; there were no significant differences in the P300 latency values. In the qualitative analysis, there were a larger number of individuals with early values for BAEP latencies and late latencies for P300 in the DS group; both comparisons showed statistically significant differences. Conclusion Children and adolescents with DS can present early responses to the components of BAEP, suggesting that their auditory pathway requires less time for the neural transmission of acoustic stimuli to the brainstem. Concerning P300, individuals with DS may present increased latencies, suggesting impairment in the central auditory pathway for the cortical processing of auditory information.
- Interação entre diabetes mellitus e hipertensão arterial sobre a audição de idosos(2015) ROLIM, Laurie Penha; RABELO, Camila Maia; LOBO, Ivone Ferreira Neves; MOREIRA, Renata Rodrigues; SAMELLI, Alessandra GiannellaABSTRACT Introduction: Chronic diseases and metabolic changes may act as accelerating factor in the degeneration of the auditory system due to age. However, studies involving an association between hearing loss and diabetes mellitus (DM) and hypertension (HA) in the elderly have shown controversial conclusions. Thus, further studies on this topic are needed in order to elucidate the effect of these chronic diseases on the auditory system. Aim: To compare the hearing thresholds of elderly patients with DM, HA and DM + HA with a control group (CG). Methods: Retrospective study was conducted through survey charts of 80 elderly people with full hearing assessment, between 2008 and 2012. Subjects were divided into four groups: DM, HA, DM + HA and without chronic diseases known (CG). The ANOVA, Tukey and Mauchly tests, with a significance level of 0.05, were used. Results: There was no statistically significant difference between the ears, which are grouped. Comparisons between the means of hearing thresholds of CG and DM or HA showed no statistically significant differences. However, a statistically significant difference in the comparison between these three groups and DM + HA group for several of the frequencies evaluated was observed. Conclusion: It was found that older adults with DM and hypertension associated showed greater hearing impairment in comparison with the other groups, suggesting a synergistic effect of the two chronic diseases on hearing.
- Middle ear muscle reflex measurement in neonates: Comparison between 1000 Hz and 226 Hz probe tones(2015) LYRA-SILVA, Kilza Arruda de; SANCHES, Seisse Gabriela Gandolfi; NEVES-LOBO, Ivone Ferreira; IBIDI, Silvia Maria; CARVALLO, Renata Mota MamedeIntroduction: Middle ear muscle reflex (MEMR) evaluation assists in diagnosing hearing problems because normal responses depend on preconditions of a healthy auditory system. Studies in neonates recording the acoustic reflex with 226 Hz probes have described high rates of absence. Other studies using a high frequency probe have found higher rates of presence in normal neonates. However, few studies have compared results between low and high frequency probes in the same newborns. Objective: To comparatively assess the ipsilateral acoustic reflex recorded by 226 Hz and 1000 Hz probes in newborns. Method: A total of 77 newborns, with the presence of transient otoacoustic emissions, underwent tympanometry, wideband acoustic immittance, and ipsilateral reflex investigations with 226 Hz and 1000 Hz tone probes. Results: The acoustic reflex was activated at a much lower intensity with all activating stimuli using the 1000 Hz probe compared with the values of the 226 Hz probe. There was a higher incidence of ipsilateral acoustic reflexes recorded by the 1000 Hz tone probe compared to the 226 Hz tone probe. There was no correlation between the acoustic reflex thresholds and otoacoustic emissions. Conclusion: In newborns, the acoustic reflex measurements obtained with the 1000 Hz probe showed advantages over the 226 Hz probe.
- Manutenção das habilidades auditivas pós treinamento auditivo(2014) FILIPPINI, Renata; BRITO, Natália Faria Siqueira; NEVES-LOBO, Ivone Ferreira; SCHOCHAT, ElianePurpose The aim of the current study was to determine the efficacy of auditory training and to establish the long-term effectiveness of the acquired auditory abilities one, two or three years following the completion of the program. Methods Ten children, who presented abnormal auditory processing ranging in degree from mild-moderate, moderate, to moderate-severe, underwent an 8-week auditory training program. All participants were reassessed immediately after training (POST-1) and one, two or three years after training (POST-2). Results Significant differences were detected in average performance between the assessment made prior to auditory training (PRE) and POST-1 assessment, and between PRE and POST-2 assessments, but no significant differences were found between POST-1 and POST-2 assessments. No correlations were detected between POST-1 and POST-2 time interval, and the difference in performance between these two evaluations. The auditory processing assessments in POST-1 were considered normal, or were mildly altered. Further, 60% of the individuals achieved the same results in POST-2 assessment. Conclusion In the current study, we verified that auditory training is an effective intervention for Auditory Processing Disorders, and that the benefits obtained after training persist even after intervals of one, two or three years following intervention.
- Personal Audio System: Hearing Symptoms, Habits, and Sound Pressure Levels Measured in Real Ear and a Manikin(2020) ALMEIDA, Tamara R.; ROCHA, Clayton H.; RABELO, Camila M.; GOMES, Raquel F.; NEVES-LOBO, Ivone F.; SAMELLI, Alessandra GiannellaPurpose: The aims of this study were to characterize hearing symptoms, habits, and sound pressure levels (SPLs) of personal audio system (PAS) used by young adults; estimate the risk of developing hearing loss and assess whether instructions given to users led to behavioral changes; and propose recommendations for PAS users. Method: A cross-sectional study was performed in 50 subjects with normal hearing. Procedures included questionnaire and measurement of PAS SPLs (real ear and manikin) through the users' own headphones and devices while they listened to four songs. After 1 year, 30 subjects answered questions about their usage habits. For the statistical analysis, one-way analysis of variance, Tukey's post hoc test, Lin and Spearman coefficients, the chi-square test, and logistic regression were used. Results: Most subjects listened to music every day, usually in noisy environments. Sixty percent of the subjects reported hearing symptoms after using a PAS. Substantial variability in the equivalent music listening level (Leq) was noted (M = 84.7 dBA; min = 65.1 dBA, max = 97.5 dBA). A significant difference was found only in the 4-kHz band when comparing the real-ear and manikin techniques. Based on the Leq, 38% of the individuals exceeded the maximum daily time allowance. Comparison of the subjects according to the maximum allowed daily exposure time revealed a higher number of hearing complaints from people with greater exposure. After 1 year, 43% of the subjects reduced their usage time, and 70% reduced the volume. A volume not exceeding 80% was recommended, and at this volume, the maximum usage time should be 160 min. Conclusions: The habit of listening to music at high intensities on a daily basis seems to cause hearing symptoms, even in individuals with normal hearing. The real-ear and manikin techniques produced similar results. Providing instructions on this topic combined with measuring PAS SPLs may be an appropriate strategy for raising the awareness of people who are at risk.
- Influence of obstructive sleep apnea on auditory event-related potentials(2022) PEDRENO, Raquel Meirelles; MATSUMURA, Erika; SILVA, Liliane Aparecida Fagundes; SAMELLI, Alessandra Giannella; MAGLIARO, Fernanda Cristina Leite; SANCHES, Seisse Gabriela Gandolfi; LOBO, Ivone Ferreira Neves; LORENZI-FILHO, Geraldo; CARVALLO, Renata Mota Mamede; MATAS, Carla GentilePurpose To evaluate the influence of obstructive sleep apnea (OSA) on the P300 response of auditory event-related potentials (ERPs) and to correlate the electrophysiological findings with OSA severity. Methods Patients with no OSA and mild, moderate, and severe OSA according to polysomnography (PSG) with normal hearing and no comorbidities were studied. Individuals with a body mass index (BMI) >= 40 kg/m(2), hypertension, diabetes, dyslipidemia, the use of chronic medications, and a risk of hearing loss were excluded. All patients underwent full PSG and auditory ERP measurement using the oddball paradigm with tone burst and speech stimuli. For P300 analysis (latencies and amplitudes), normal multiple linear regression models were adjusted with the groups (No OSA, Mild OSA, Moderate OSA, Severe OSA), age, BMI, and Epworth score as explanatory variables. Results We studied 54 individuals (47 males) aged 35 +/- 8 years with a BMI of 28.4 +/- 4.3 kg/m(2). Patients were divided according to the apnea-hypopnea index (AHI) derived from PSG into no OSA (n = 14), mild (n = 16), moderate (n = 12), and severe OSA (n = 12) groups. Patients with severe OSA presented prolonged P300 latencies with tone burst stimuli compared to patients with no OSA and those with mild and moderate OSA. Conclusion Severe OSA is associated with impairment of the P300 response of auditory ERPs, suggesting a decrease in the processing speed of acoustic information that may be mediated by the level of somnolence.
- Study of the peripheral and central auditory pathways in patients with mucopolysaccharidosis(2024) CHIMELO, Flavia Teixeira; SILVA, Liliane Aparecida Fagundes; NEVES-LOBO, Ivone Ferreira; KIM, Chong Ae; MATAS, Carla GentileObjective: To investigate the peripheral and central auditory pathways in mucopolysaccharidosis (MPS) individuals. Method: The research sample comprised 15 individuals (one female and 14 males), aged 8 to 46 years. The following procedures were used: medical history survey, otoscopy, speech and puretone threshold audiometry, acoustic immittance measures, and central auditory pathway assessment with brainstem auditory evoked potentials (BAEP) and long-latency auditory evoked potentials (LLAEP). Results: The pure-tone audiometry identified hearing loss in 13 individuals, and more than 90 % of the hearing loss was sensorineural. The degree of hearing loss was between mild to moderately severe with descendent configuration. Type A tympanogram predominated, and acoustic reflexes were present according to the types and degrees of hearing loss. Among the individuals with abnormal BAEP, longer wave III and V absolute latencies were the main findings. In addition, the unilateral absence of wave I was observed in two cases. In the LLAEP, longer latencies were observed in 14 individuals, and the most impaired components were the P1 and P3 in children and adolescents and the P2, N2 and P3 in adult individuals. Conclusion: The peripheral auditory pathway assessment revealed a predominantly sensorineural hearing loss, affecting mainly high frequencies, and in the central pathway was observed abnormal brainstem and cortical auditory processing in individuals with MPS.
- Effects of noise on the vestibular system of normal-hearing workers(2022) DUARTE, Victor Octavio Macena; NEVES-LOBO, Ivone Ferreira; SAMELLI, Alessandra GiannellaBACKGROUND: Studies in noise-exposed animals have shown changes in vestibular structures. Likewise, studies in humans have been suggesting that noise can damage the vestibular system, even with normal assessment results. OBJECTIVE: To assess the vestibular system of workers exposed to noise and to compare with individuals not exposed. METHODS: Twenty normal-hearing male adults were divided in the study group (SG), exposed to occupational noise, and control group (CG). We conducted the following procedures: medical history, Dizziness Handicap Inventory (DHI), Dix-Hallpike maneuver, and electronystagmography (eye and caloric tests). RESULTS: The DHI score did not differ between groups. The Dix-Hallpike maneuver was normal for both groups. All individuals had normal responses in the eye tests. 50% of the SG had hyperreflexia in the caloric tests, with a significant difference between the groups. There was a trend towards a statistical significance in the absolute values of angular speed of the slow component in the cold-air test, which were higher in the SG. There was a significant difference between the groups in the relative values of labyrinthine preponderance, which were higher in the SG. CONCLUSION: Our findings showed that 70% of the workers exposed to occupational noise had vestibular alterations identified with electronystagmography, whereas 100% of the individuals in the CG had normal results in the vestibular assessment. Moreover, only 20% of the sample in both groups had vestibular complaints, indicating the presence of subclinical vestibular changes in 50% of the individuals exposed to occupational noise.
- Study of the neural plasticity in adults and older adults new hearing aid users(2020) SOUZA, Gabriela Valiengo de; MATAS, Carla Gentile; SILVA, Liliane Aparecida Fagundes; LOBO, Ivone Ferreira Neves; SAMELLI, Alessandra GiannellaABSTRACT Purpose: to monitor, with long-latency auditory evoked potentials, the plasticity of the central auditory pathways in adults and older adults, new users of hearing aids. Methods: a total of 15 adults and older adults, aged 55 to 85 years, participated in the research. They had a symmetric bilateral mild to moderate sensorineural hearing loss, without previous experience with any type of hearing aid. The long-latency auditory evoked potentials were conducted with and without amplification, at 60 and 75 dBnHL, with speech stimulus in a sound field, in two assessment moments: up to one week after fitting the hearing aid and after six months of its use. The Student’s t-test was used for statistical analysis, considering significant the p-value < 0.05. Results: responses with lower latency values were observed for the right ear in the second assessment. Comparing the first with the second assessment, both with and without the hearing aid, an increase in the amplitude of P2-N2 was observed, as well as an increase in the latency of the P2 component at the intensity of 75 dBnHL. No statistically significant differences were observed at the intensity of 60 dBnHL. Conclusion:the use of the hearing aid promoted the plasticity of the central auditory pathways, increasing the number of neurons responsive to the sound stimuli.
- Training in the proper use of earplugs: An objective evaluation(2020) TAKADA, Mirian Missae; ROCHA, Clayton Henrique; NEVES-LOBO, Ivone Ferreira; MOREIRA, Renata Rodrigues; SAMELLI, Alessandra GiannellaBACKGROUND: Discrepancies between attenuation obtained in the laboratory and the field are caused by several factors associated with hearing protection devices (HPDs). The effects of some factors can be minimized with proper training provided to HPD users. OBJECTIVE: To evaluate the effectiveness of an educational intervention for improving the correct use of earplugs as HPDs in workers exposed to occupational noise by using the F-MIRE method and by comparing pre- and post-training attenuation values and pass/fail rates. METHODOLOGY: The personal attenuation ratings (PARs) of two types of earplugs were obtained (140 individuals) using E-A-Rfit (TM) equipment. Each HPD was evaluated under two scenarios: first after the user only read the packaging instructions, and then after the user read guidelines and participated in a training program. The results obtained were automatically classified by the software as ""Approved"" or ""Failed"". RESULTS: There was a significant post-training increase in the binaural PAR values for both HPDs. The percentages of passes pre- and post-training showed that training users in the proper fit of the HPD was effective; both types had statistically significant differences. CONCLUSION: This study found a statistically significant increase in PARs and the number of workers passing evaluations after HPD fit training, demonstrating the effectiveness of this educational intervention.