RESUMO
The purpose of this prospective study was to determine the incidence and type of hearing loss occurring in children who suffered head injuries. Fifty children admitted to the neurosurgical service after sustaining head trauma were studied. Neurologic, otologic, and audiologic evaluations were performed. Diagnostic studies included skull roentgenograms and computerized tomography scans. A 32% incidence of conductive hearing loss and a 16% incidence of high-frequency sensorineural hearing loss was found in this group. All patients with temporal bone fractures had conductive hearing losses, but the presence of a skull vault fracture did not correlate with the presence, type, or degree of hearing loss. In addition, there was no correlation between either cause of injury, loss of consciousness, or Glasgow Coma Scale scores and the presence, type, or degree of hearing loss. There was a significant incidence of both sensorineural and conductive hearing loss in this series of patients, which indicates that close audiologic and otologic follow-up is necessary for all head injury patients.
Assuntos
Traumatismos Craniocerebrais/complicações , Perda Auditiva Condutiva/etiologia , Perda Auditiva Neurossensorial/etiologia , Testes de Impedância Acústica , Adolescente , Audiometria , Limiar Auditivo , Criança , Pré-Escolar , Escala de Coma de Glasgow , Audição , Perda Auditiva de Alta Frequência/etiologia , Humanos , Incidência , Otite Média com Derrame/complicações , Estudos Prospectivos , Radiografia , Fraturas Cranianas/complicações , Fraturas Cranianas/diagnóstico por imagem , Osso Temporal/diagnóstico por imagem , Osso Temporal/lesões , Inconsciência/complicaçõesRESUMO
Two hundred eighty patients underwent neck dissection over a 10-year period: 138 during the 5-year period before the institution of Diagnosis-Related Group (DRG) reimbursement and 142 during the 5 years after DRG regulations. A comparison of these two groups by site of tumor, stage of disease, histopathology, previous treatment, type of neck dissection, whether neck dissection was carried out alone or in combination with another procedure, presence of preexisting disease, postoperative complications, and mortality revealed no significant differences. A 35% reduction in the length of hospital stay from 16 to 10 days was identified in the post-DRG group with no detrimental effects on patient care. The variables found to have the greatest impact on length of hospital stay were the extent of operation and postoperative complications.
Assuntos
Grupos Diagnósticos Relacionados , Esvaziamento Cervical , Cuidados Pós-Operatórios , Qualidade da Assistência à Saúde , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Tempo de Internação , Complicações Pós-OperatóriasRESUMO
Both cell-to-cell and extracellular transmission of chikungunya virus infection was demonstrated in BHK21/C13 cell monolayers. The mode of virus infection may depend on the cell line. Virus transmission in L-929 and guinea pig lung cell lines was extracellular.
Assuntos
Vírus Chikungunya , Técnicas de Cultura , Animais , Bovinos , Linhagem Celular , Cricetinae , Imunofluorescência , Cobaias , Rim , Pulmão , CamundongosRESUMO
Viral and rickettsial agents, located intracellularly in cell monolayers, varied in their ability to survive exposure to acetone at -60 C.
Assuntos
Acetona , Coxiella , Preservação Biológica , Vírus , Acetona/farmacologia , Animais , Coxiella/efeitos dos fármacos , Técnicas de Cultura , Imunofluorescência , Congelamento , Cobaias , Técnicas Histológicas , Raios Ultravioleta , Vírus/efeitos dos fármacos , Vírus/efeitos da radiaçãoRESUMO
The effects of three temperatures [30, 50, and 80 F (-1.11, 10, and 26.67 C)] and three relative humidities (30, 50, and 80%) on biological and physical decay rates of aerosols of yellow fever virus were investigated. Neither temperature nor relative humidity, independently or jointly, significantly affected biological or physical decay rates. The advantages of assaying yellow fever virus by the fluorescent-cell counting technique are discussed.
