Hearing Thresholds at High Frequencies: Age as a Predictor of Values

Abstract Introduction The audiological evaluation has the main objective of determining the integrity of the auditory system. Pure tone audiometry is a standardized behavioral procedure that aims to investigate auditory thresholds to describe auditory sensitivity. Despite being recognized since the mid-1960s, high frequency audiometry is still little used and explored in clinical practice, and its use is more considered as an audiological monitoring tool or as a research tool. Objective To analyze the audiological thresholds of high frequency audiometry in normal hearing individuals, and to verify the predictive capacity of age in the auditory thresholds of high frequency audiometry. Methods This is a retrospective, cross-sectional, and quantitative study that was approved by the Research Ethics Committee under number 5.039.583/21. The procedures were: clinical evaluation, pure tone audiometry, acoustic immittance measurements, and high frequency audiometry. All data collected from the exams were tabulated in an Excel spreadsheet and analyzed using appropriate statistical tests in the Statistical Package Social Sciences software. Results A total of 980 medical records were analyzed. The right and left ears presented similar tonal hearing thresholds for the frequencies of 12 kHz and 16 kHz. The threshold variance of 29.8% in the 12 kHz frequency can be explained by the variance of age, while, for the frequency of 16 kHz, this percentage is of 46.4%. Conclusion For 12 kHz hearing thresholds, an increase of 1 year leads to a 0.66 dBHL increase in hearing threshold. For 16 kHz hearing thresholds, an increase of 1 year leads to a 1.02 dBHL increase in hearing threshold.

Turbinectomia parcial com laser CO2: relato de vinte e nove casos / Partial turbinectomy with CO2 laser: report of twenty-nine cases

Neste trabalho, säo relatados vinte e nove casos de pacientes submetidos a turbinectomias parciais dos cornetos inferiores com laser de CO2, sendo dezessete homens e doze mulheres, cuja faixa etária varia de nove a vinte e sete anos. Nos resultados, salieinta-se o menor sangramento pós-operatório e a maior possibilidade de intervençöes ambulatoriais sob anestesia local.

Estudo retrospectivo de 1.692 casos de turbinectomias, septoplastias e polipectomias por microcirurgia endonasal / Retrospective study of 1,692 cases of turbinectomies, septoplasties and polypectomies by endonasal microsurgery

Os autores se propöem a analisar, em estudo retrospectivo, 1692 casos de microcirurgias endonasais, realizados entre 1974 e 1990, incluindo septoplastias, turbinectomias e polipectomias. Säo analisados o tipo de cirurgia e sua relaçäo quanto ao sexo e idade dos pacientes, a técnica operatória, o equipamento empregado, os resultados e as complicaçöes ocorridas. Concluiu-se que, em relaçäo a septoplastias, as vias de reconstruçäo seletivas säo, hoje em dia, as mais recomendadas. Quanto às turbinectomias, as exéreses amplas säo em muitos casos as mais eficientes, trazendo poucas complicaçöes tanto no pós-operatório imediato quanto no tardio.

Rinosporidiose: a propósito de um caso / Rhinosporidiosis: apropos of a case

Os autores comentam um caso de rinosporidiose, apresentando levantamento bibliográfico sobre a patologia, incidência, etiologia, quadro clínico, diagnóstico, tratamento e diagnóstico diferencial.