RESUMO
This study was designed to determine whether vibration thresholds of transcriptionists varied significantly from the thresholds of individuals not exposed to keyboard activities. Using a multifrequency vibrometer, we obtained vibration threshold values from 31 medical transcriptionists who perform work on computer keyboards and compared them to values obtained from 40 control subjects. Thresholds tended to become more abnormal at higher frequencies, although this difference was statistically significant only at frequencies of 125 Hz, 250 Hz, and 500 Hz in the index and small fingers. Vibration thresholds were not found to increase significantly with age or years of occupation. Vibration thresholds were significantly increased in medical transcriptionists at the higher frequencies, suggesting subtle neural dysfunction.
Assuntos
Mãos/inervação , Prontuários Médicos , Doenças Profissionais/fisiopatologia , Doenças do Sistema Nervoso Periférico/fisiopatologia , Pele/inervação , Adulto , Síndrome do Túnel Carpal/diagnóstico , Síndrome do Túnel Carpal/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doenças do Sistema Nervoso Periférico/diagnóstico , Limiar Sensorial/fisiologia , Nervo Ulnar/fisiopatologia , VibraçãoRESUMO
There are few reports of Thelazia californiensis infestation in humans in the literature. The authors report the clinical and histopathologic features of two patients who presented with symptoms of a mild unilateral chronic conjunctivitis from infestation by this parasite. In each case, the symptoms resolved immediately after removal of the worms. These are the first two patients from the Rocky Mountain area to be described with an infection from this particular worm. T. californiensis should be included in the differential diagnosis of patients with chronic conjunctivitis following hiking or camping in the mountains or back-country.
