Paulo Roberto Pialarissi

Respostas auditivas evocadas de latência média: um estudo de padronização

A presenca das respostas auditivas evocadas de latencia media nos permite a avaliacao da integridade do sistema auditivo periferico e central, bem como dos nucleos e vias auditivas existentes ate no nivel da regiao talamo-cortical e cortex auditiva primaria. OBJETIVO: Temos como objetivo avaliar a presenca ou nao destas varias deflexoes, bem como de suas latencias e intervalos e fazer um estudo de padronizacao. FORMA DE ESTUDO: Estudo de coorte contemporâneo com corte transversal e o delineamento sendo quantitativo, descritivo e nao-experimental. MATERIAL E METODO: Estudar as varias deflexoes, positivas e negativas, eliciadas pelos potenciais auditivos de latencia media, em uma populacao de individuos adultos jovens, com idade entre 18 e 30 anos, de ambos os sexos, com audicao normal. Utilizamos estimulacao sonora monoauricular e captacao, separadamente, nos dois hemisferios cerebrais, com eletrodos de superficie. RESULTADO: Neste trabalho verificou-se que os cruzamentos analisados nao apresentaram resultados estatisticamente significativos e estipulou-se uma padronizacao com fundamentacao nos resultados obtidos. Podemos afirmar genericamente, tendo-se em conta a nao-significância estatistica encontrada, que para as ondas Po, obteve-se, respectivamente, para a media e para o desvio padrao os valores de 12,09ms e 1,84; para Na 17,91ms e 2,60; para Pa 29,41ms e 5,66; para Nb 41,43ms e 8,89; para Pb 51,44ms e 12,63 e finalmente para o intervalo Na-Pa 11,52ms e 4,99. CONCLUSAO: 1-Foi verificada a presenca das deflexoes Po, Na e Pa em todos os registros, enquanto que as deflexoes Nb e Pb estiveram ausentes em 06 registros apenas. 2- Com a obtencao desses registros, avaliamos que a captacao dessas deflexoes nos serve como um metodo confiavel para a deteccao dos potenciais auditivos de latencia media, ocorrendo a partir de atividade eletrica gerada, possivelmente, em sitios localizados na regiao talamo-cortical, evocados com a utilizacao de estimulos sonoros. A partir dai, estabelecemos um padrao de respostas, em nosso meio, para individuos jovens, com audicao normal, possibilitando-nos a realizacao de estudos posteriores em pacientes com alteracoes do sistema auditivo.

Auditory middle latency evoked responses: a standardizing study

UNLABELLED The presence of auditory middle latency evoked responses allows us to make an evaluation of the peripheral and central auditory system integrity , as well as the nucleus and auditory ways existing until the level of the thalamus-cortical region and primary auditory cortex. AIM Our objective is to evaluate the presence or not of this numerous peaks, as well as, their latencies and intervals and extend to make a standardizing study. WAY OF STUDY: Contemporary study of Coorte with transversal cut and the outline was quantitative, descriptive e non experimental. MATERIAL AND METHOD Studying several peaks, positives and negatives, caused by the middle latency auditory potentials, in a population of young adults individuals, ranging from 18 to 30 years old, from both genders, with normal hearing. It was used a monoauricular resonant stimulation and a capitation, separately, in both cerebral hemispheres, with surface electrodes. RESULTS In this research was verified that the analyzed crossings did not present statistically significant results and it was stipulated a pattern from the obtained results. Based on the non-statistical difference found we can affirm that to the Po waves was obtained respectively an average and standard deviation of 12,09 and 1,84; for Na 17,91 and 2,60; for Pa 29,41 and 5,66; for Nb 41,43 and 8,89; to for 51,44 ms e 12,63 and finally to the interval Na-Pa 11,52 and 4,99. CONCLUSION 1- The presence of the defluxions Po, Na, and Pa was verified in all the registers, whereas the defluxions Nb and Pb were absent in only 06 registers. 2- By having these registers, we evaluated that the inveiglement of these defluxions can be used as a reliable method to detect the average latency of the auditory potentials, by electrical generated activities, possibly in sites located in the thalamus-cortical area, evoked by sonorous stimulation. From that point, we establish a pattern of responses for young ones with normal hearing, helping us with future studies in patients with alterations in the hearing system.

Cranium-facial trauma by a cutting weapon

Craniofacial trauma caused by metallic objects is common in wars, personal conflict, and a variety of accidents. Causes may include firearms, cutting and thrusting weapons, metal, bone or dental fragments, all of which produce injury ranging from minor abrasions to extensive and severe fractures. This type of injury occurs mainly in young male adults aged between 19 and 30 years due to increased exposure to predisposing factors. Penetrating brain injury by low kinetic energy objects is uncommon. Most cases of craniofacial trauma involve cranial and orbit injury. At other times, the nervous system may be extensively involved, such as in a reported case involving asbestos fiber where the patient underwent craniotomy. Injury caused by gunshots, which have high kinetic energy, are more extensive and are frequent in major urban centers. The face is the most affected region in cases of personal violence. In Brazil 78.31% of homicides result from firearms and 10.96% of homicides result from cutting and thrusting weapons. Causes of cranial trauma are motor vehicle accidents (40.7%), aggression with or with no weapons (25.4%), and falls (24%)..

Case ReportSurgical approach in a patient with Multiple Symmetrical Lipomatosis: Case Report

1 Doctoral degree, USP/SP, Staff of the Odontomed Hospital. 2 Doctoral degree, USP/SP, Full professor at the PUC/SP. 3 Medical undergraduate student in the Itajuba Medical School, MG. 4 Medical undergraduate student in the Juiz de Fora Medical School, MG. 5 Medical undergraduate student in the Souza Marques Medical School, Rio de Janeiro, RJ. Paper submitted to the BJORL-SGP (Publishing Management System – Brazilian Journal of Otorhinolaryngology) on August 9, 2010; and accepted on November 3, 2010. cod. 7258 CASE REPORT Braz J Otorhinolaryngol. 2011;78(1):142. BJORL

Surgical approach in a patient with multiple symmetrical lipomatosis: case report.

1 Doctoral degree, USP/SP, Staff of the Odontomed Hospital. 2 Doctoral degree, USP/SP, Full professor at the PUC/SP. 3 Medical undergraduate student in the Itajuba Medical School, MG. 4 Medical undergraduate student in the Juiz de Fora Medical School, MG. 5 Medical undergraduate student in the Souza Marques Medical School, Rio de Janeiro, RJ. Paper submitted to the BJORL-SGP (Publishing Management System – Brazilian Journal of Otorhinolaryngology) on August 9, 2010; and accepted on November 3, 2010. cod. 7258 CASE REPORT Braz J Otorhinolaryngol. 2011;78(1):142. BJORL