RICARDO FERREIRA BENTO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Otorrinolaringologia e Oftalmologia, Faculdade de Medicina - Docente
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/32 - Laboratório de Otorrinolaringologia, Hospital das Clínicas, Faculdade de Medicina - Líder
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/32 - Laboratório de Otorrinolaringologia, Hospital das Clínicas, Faculdade de Medicina - Líder
174 resultados
Resultados de Busca
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- Directions of the bilateral Cochlear Implant in Brazil(2012) HYPPOLITO, Miguel Angelo; BENTO, Ricardo Ferreira
article Assessment of a neurophysiological model of the mandibular branch of the facial nerve in rats by electromyography (vol 121, pg 179, 2012)(2012) SALOMONE, R.; COSTA, H. J. Z. R.; RODRIGUES, J. R. F.; SILVA, S. M. Reis e; OVANDO, P. C.; BENTO, R. F.- Prof. Dr. Aroldo Miniti - A Great Master(2016) BENTO, Ricardo Ferreira
- Ear Parade: A Call for Preventive Actions to Strengthen the Healthcare System against Hearing Loss(2021) LOPES, Paula Tardim; BENTO, Ricardo FerreiraIntroduction Approximately 10 million people in Brazil have some hearing impairment. Because of the natural progression of hearing impairment to presbycusis, coupled with the increasing number of young people exposed to the risk factors for early hearing loss, the social impact of hearing impairment is high. Objective A team of otolaryngologists and speech therapists conducted an unprecedented worldwide campaign in the primary health sector, aiming to reduce the global burden of hearing impairment with preventive measures. Methods A cultural information campaign called ""Ear Parade"" was developed. It lasted 3 months, during which SAo Paulo received information on the prevention of deafness and the importance of hearing rehabilitation to reduce prejudice against the use of hearing aids. Results The information was relayed through an art exhibition of public paintings, including 62 sculptures of ears, 2.40 meters high, which colored the city, elucidating the beauty of hearing. The media coverage impacted 170 million people, and at the end of the campaign, a nongovernmental organization was established to raise resources for hearing rehabilitation. In addition, an auction of the ear sculptures raised money toward hearing aid batteries and stem-cell research for hearing. Conclusion The present paper presents the effects of this campaign. Information dissemination is a powerful preventive measure for the primary healthcare system to reduce future treatment expenditures.
- Middle ear adenoma with neuroendocrine differentiation: relate of two cases and literature review(2013) BITTENCOURT, Aline Gomes; TSUJI, Robinson Koji; CABRAL JUNIOR, Francisco; PEREIRA, Larissa Vilela; FONSECA, Anna Carolina de Oliveira; ALVES, Venâncio; BENTO, Ricardo FerreiraINTRODUCTION: Adenomas with neuroendocrine differentiation are defined as neuroendocrine neoplasms, and they are rarely found in the head and neck. OBJECTIVE: To describe two cases of a middle ear adenoma with neuroendocrine differentiation, with a literature review. CASE REPORT: Patient 1 was a 41-year-old woman who presented with a 3-year history of left aural fullness associated with ipsilateral ""hammer beating"" tinnitus. Patient 2 was a 41-year-old male who presented with unilateral conductive hearing loss. CONCLUSION: Adenoma with neuroendocrine differentiation of the middle ear is a rare entity, but it should be considered in patients with tinnitus, aural fullness, and a retrotympanic mass and remembered as a diferential diagnosis of tympanic paraganglioma.
- Cortical maturation in children with cochlear implants: Correlation between electrophysio-logical and behavioral measurement(2017) SILVA, Liliane Aparecida Fagundes; COUTO, Maria Ines Vieira; MAGLIARO, Fernanda C. L.; TSUJI, Robinson Koji; BENTO, Ricardo Ferreira; CARVALHO, Ana Claudia Martinho de; MATAS, Carla GentileCentral auditory pathway maturation in children depends on auditory sensory stimulation. The objective of the present study was to monitor the cortical maturation of children with cochlear implants using electrophysiological and auditory skills measurements. The study was longitudinal and consisted of 30 subjects, 15 (8 girls and 7 boys) of whom had a cochlear implant, with a mean age at activation time of 36.4 months (minimum, 17 months; maximum, 66 months), and 15 of whom were normal-hearing children who were matched based on gender and chronological age. The auditory and speech skills of the children with cochlear implants were evaluated using GASP, IT-MAIS and MUSS measures. Both groups underwent electrophysiological evaluation using long-latency auditory evoked potentials. Each child was evaluated at three and nine months after cochlear implant activation, with the same time interval adopted for the hearing children. The results showed improvements in auditory and speech skills as measured by IT-MAIS and MUSS. Similarly, the long-latency auditory evoked potential evaluation revealed a decrease in P1 component latency; however, the latency remained significantly longer than that of the hearing children, even after nine months of cochlear implant use. It was observed that a shorter P1 latency corresponded to more evident development of auditory skills. Regarding auditory behavior, it was observed that children who could master the auditory skill of discrimination showed better results in other evaluations, both behavioral and electrophysiological, than those who had mastered only the speech-detection skill. Therefore, cochlear implant auditory stimulation facilitated auditory pathway maturation, which decreased the latency of the P1 component and advanced the development of auditory and speech skills. The analysis of the long-latency auditory evoked potentials revealed that the P1 component was an important biomarker of auditory development during the rehabilitation process.
- Otobone ((R)) : Three-dimensional printed Temporal Bone Biomodel for Simulation of Surgical Procedures(2019) BENTO, Ricardo Ferreira; ROCHA, Bruno Aragao; FREITAS, Edson Leite; BALSALOBRE, Fernando de AndradeIntroduction The anatomy of the temporal bone is complex due to the large number of structures and functions grouped in this small bone space, which do not exist in any other region in the human body. With the difficulty of obtaining anatomical parts and the increasing number of ear, nose and throat (ENT) doctors, there was a need to create alternatives as real as possible for training otologic surgeons. Objective Developing a technique to produce temporal bone models that allow them to maintain the external and internal anatomical features faithful to the natural bone. Methods For this study, we used a computed tomography (CT) scan of the temporal bones of a 30-year-old male patient, with no structural morphological changes or any other pathology detected in the examination, which was later sent to a 3D printer in order to produce a temporal bone biomodel. Results After dissection, the lead author evaluated the plasticity of the part and its similarity in drilling a natural bone as grade ""4"" on a scale of 0 to 5, in which 5 is the closest to the natural bone and 0 the farthest from the natural bone. All structures proposed in the method were found with the proposed color. Conclusion It is concluded that it is feasible to use biomodels in surgical training of specialist doctors. After dissection of the bone biomodel, it was possible to find the anatomical structures proposed, and to reproduce the surgical approaches most used in surgical practice and training implants.
- Influence of international authorship on citations in Brazilian medical journals: a bibliometric analysis(2019) MONTEFUSCO, Adilson Marcos; NASCIMENTO, Felipe Parra do; SENNES, Luiz Ubirajara; BENTO, Ricardo Ferreira; IMAMURA, RuiThe challenge of increasing the impact of regional journals has received much attention. While funding and research agencies require the acceptance of papers from foreign authors as a means of increasing citations, Brazilian journal editors dispute the impact of this measure. This study aimed to evaluate, for Brazilian medical journals, whether the number of citations a document received was influenced by the authors' institutional affiliations or other predictive factors related to the paper or the journal. Sixty-one medical journals published in Brazil in 2012 were selected for analysis. SCImago and Scopus were used to extract the articles and their data. The number of citations a document received in 5years was analyzed according to the authors' affiliations, language, document type, SCImago Cites per Document, and journal subject category. After adjusting for covariates by multivariate analysis, documents with collaborative international affiliations showed a citation increase of 0.17 (95% CI: 0.084-0.216) over documents by Brazilian authors. Significant increases in citations were also observed for bilingual documents (0.329; 95% CI: 0.236-0.380), English-only documents (0.159; 95% CI: 0.078-0.203), articles (1.590; 95% CI: 1.363-1.714), reviews (2.752; 95% CI: 2.355-2.972), and those under the subject category of hematology (1.280; 95% CI: 0.756-1.604). In summary, while collaborative international authorship increased citations in the investigated journals, language, type of document, and subject category had a stronger impact on the number of citations.
- P3 Cognitive Potential in Cochlear Implant Users(2018) GRASEL, Signe; GRETERS, Mario; GOFFI-GOMEZ, Maria Valeria Schimidt; BITTAR, Roseli; WEBER, Raimar; OITICICA, Jeanne; BENTO, Ricardo FerreiraIntroduction The P3 cognitive evoked potential is recorded when a subject correctly identifies, evaluates and processes two different auditory stimuli. Objective to evaluate the latency and amplitude of the P3 evoked potential in 26 cochlear implant users with post-lingual deafness with good or poor speech recognition scores as compared with normal hearing subjects matched for age and educational level. Methods In this prospective cohort study, auditory cortical responses were recorded from 26 post-lingual deaf adult cochlear implant users (19 with good and 7 with poor speech recognition scores) and 26 control subjects. Results There was a significant difference in the P3 latency between cochlear implant users with poor speech recognition scores (G-) and their control group (CG) (p = 0.04), and between G-and cochlear implant users with good speech discrimination (G+) (p = 0.01). We found no significant difference in the P3 latency between the CG and G+. In this study, all G-patients had deafness due to meningitis, which suggests that higher auditory function was impaired too. Conclusion Post-lingual deaf adult cochlear implant users in the G-group had prolonged P3 latencies as compared with the CG and the cochlear implant users in the G+ group. The amplitudes were similar between patients and controls. All G-subjects were deaf due to meningitis. These findings suggest that meningitis may have deleterious effects not only on the peripheral auditory system but on the central auditory processing as well.
- Overcoming developing-world challenges in cochlear implantation: a South American perspective(2018) BENTO, Ricardo F.; BAHMAD, Fayez; HIPPOLYTO, Miguel A.; COSTA, Sady S. DaPurpose of review Effective hearing rehabilitation with cochlear implantation is challenging in developing countries, and this review focuses on strategies for childhood profound sensorineural hearing loss care in South America. Recent findings Most global hearing loss exists in developing countries; optimal cost-effective management strategies are essential in these environments. This review aims to assess and discuss the challenges of cochlear implantation effectiveness in South America. The authors searched electronic databases, bibliographies, and references for published and unpublished studies. Sensitivity analysis was performed to evaluate the effect of device cost, professional salaries, annual number of implants, and failure rate. Costs were obtained from experts in South America using known costs and estimations whenever necessary. Recent studies reported several challenges in unilateral or bilateral cochlear implants: cochlear implant costs, deaf education costs, increasing need for cochlear implant capacity, and training and increasing longevity. Summary Cochlear implantation was very cost-effective in all South American countries. Despite inconsistencies in the quality of available evidence, the robustness of systematic review methods substantiates the positive findings of the included studies, demonstrating that unilateral cochlear implantation is clinically effective and likely to be cost-effective in developing countries.