Resultados da implementação do protocolo da via verde do acidente vascular cerebral num hospital português Resultados de la implementación del protocolo código ictus en un hospital portugués
A survey was done on the histologic findings on cleared neck dissection specimens in a group of 42 patients who underwent resection for pharyngeal cancer. Positive nodes were found in 69% of the specimens, with upper deep jugular nodes being most frequently involved and with multiple levels of involvement being found in one quarter of the patients.
Despite the low occurrence of early laryngeal lesions amenable to Partial Supraglottic Laryngectomy, they form a very interesting and important group of lesions. Timing is important in their recognition, since adequate treatment can then be secured and important functions of the larynx preserved. The draw back in the treatment of these lesions by partial laryngectomy lies in the difficulty in restoring the patient to his preoperative pattern of life. Repeated aspiration pneumonitis becomes a life threatening problem in a good number of such patients. A new method of reconstruction is described here by which the aspiration problem is obviated with the aid of a pedicle flap to line the raw surface of the transected base of the tongue allowing the organ to remain in a position capable of occluding the glottis during deglutition, and at the same time guiding the food along the posterior pharyngeal wall and into the esophagus.
As análises usuais de percolação pelo Método dos Elementos Finitos determinam o potencial em todos os pontos nodais, de modo a satisfazer a Equação de Laplace e as condições de contorno do problema. A partir do potencial, calculam-se os gradientes hidráulicos, as velocidades aparentes de fluxo e as vazões na região analisada. Eventualmente, pode-se calcular outras variáveis de interesse, como pressões neutras e forças de percolação. No entanto, não é viável, do ponto de vista prático, determinar as linhas fluxo por meio destas análises.
Este trabalho apresenta a formulação em termos da função fluxo, e a solução numérica pelo MEF, de problemas envolvendo fluxo de água em solos saturados. Esta formulação permite a determinação de linhas de fluxo em situações gerais. Apresentam-se exemplos de utilização envolvendo casos de interesse prático.
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