Láser en otorrinolaringología: [revisión] / Laser in otorhinolaryngology: [review]

Esta revisión bibliográfica analiza los diferentes tipos de láser usados en otorrinolaringología, destacando las propiedades de cada uno. Posteriormente describe las características de una sesión con anestesia y uso de láser y las patologías con indicaciones de cirugía láser. Estas se clasifican en cinco rubros. Patología laringotraqueal, patología faringobucal, patología sinusal, otología y dermatología cérvico facial. En la primera se analizan: lesiones fonoquirúrgico, papilomatosis laríngea, parálisis laríngeas, laringomalacia, angioma subglótico, estenosis y displasia laríngea, cáncer laríngeo. En patología faríngea y bucal se analiza su uso en atresia coanal, amígdalas palatinas linguales, roncopatías, divertículo de Zenker. En fosas nasales se describen los usos en cirugía endoscópica (FEELS). En patología otológica se analiza su uso en CAE y oído medio, para concluir con las lesiones cervicofaciales.

Noise level of drilling instruments during mastoidectomy

Exposure to intense noise has been identified as a potential risk in the development of hearing impairment. Social concern about excessive noise is increasing and this also extends to the operating room. A noise level study was performed in the operating room during mastoidectomy with a sound level meter and it was analyzed by a sound-analyzing program. The drilling instruments used included the Stryker, Midas, M.P.S. and Med-Next. The operator was exposed to sound levels from 69 to 83 dBA. The loudest drilling instrument was the Midas and it produced an average sound level of 83 dBA to the operator. The mean exposure time was 41 minutes during mastoidectomy. This is below the occupational noise-level regulations in Korea. However, considering that individual susceptibility to noise varies and that the otologic surgeon is repeatedly exposed to prolonged drilling noise, ear protection is recommended for the operators of high-speed drilling instruments.

A modified hearing aid fitting procedure using both real ear and 2cc coupler measurement system

In order to reduce the test time in real ear hearing-aid fitting for children, the validity of applying the average real ear to coupler differences (RECDs) in prefitting procedure using a 2cc coupler measurement system was evaluated by checking whether the majority of people's RECDs might occur within 5 dB of the average RECDs (N = 116) in each test frequency and age group. The percentages of occurrence were around 90% in test subjects' RECDs in saturation sound pressure levels (SSPLs) and around 70% in gain in each important test frequency. Appropriate test frequencies in prefitting are 500, 1000, 1500 and 2000 Hz.

Semiologia otorrinolaringológica / Otorhinolaryngologic semiology

Nesta revisäo dirigida ao graduando em Medicina e ao médico näo especialista, apresentou-se os principais elementos semiológicos das fossas nasais, seios paranasais, laringe, faringe e ouvidos.