Autor: Ciências &amp; Exatas | Publicado: 2012-04-15T11:53:00-07:00

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Hospital de SP
testará coração artificial feito no Brasil

Operação
dá sobrevida a quem espera por transplante e não é definitiva



Um novo
modelo de coração artificial feito no Brasil recebeu autorização para ser
testado em humanos.
 Cinco pacientes já foram escolhidos para receber o aparelho,
que foi desenvolvido Instituto Dante Pazzanese, em São Paulo. As
cirurgias serão feitas no próprio hospital, que é uma unidade da Secretaria da
Saúde do Estado de São Paulo.



Os pacientes indicados para a operação têm
insuficiência cardíaca aguda ou descompensada e já não respondem bem aos
medicamentos, mas devem estar em condições clínicas e psicossociais aceitáveis.
A operação é contraindicada para pessoas com mais de 65 anos ou menos de 40 kg, por exemplo

O coração artificial não substitui o natural,
mas dá uma sobrevida aos pacientes que estão na fila para um transplante.
Nesses testes, ele deve auxiliar o funcionamento do coração natural. Para que
isto aconteça, ele deverá ficar ligado por, no mínimo, 30 dias.

O aparelho fica acoplado ao coração e ajuda a
bombear o sangue para o corpo. Para isto, ele precisa de energia elétrica, que
é fornecida por uma bateria presa na cintura do paciente. A bateria dura apenas
duas horas. No restante do tempo, é possível ligar esta bateria na tomada.

O coração artificial desenvolvido no Brasil
obteve bons resultados nas experiências com animais de grande porte, como bois
e cavalos. A licença para os testes em humanos foi cedida pela Agência Nacional
de Vigilância Sanitária (Anvisa)

Fonte: G1



PEDRO OLIVEIRA