


...
3
Índice
1.Apresentação .....................................................................................................

  ...



...


              ...

 

 ...

 








       
...

   
  ...



 
 
...

  
 

    
...

  
...


...

  

...
19
Durante o processo de migração dos ovos (cerca de uma semana) a maturação dos mesmos é
ultimada. Organiza-se então no s...


  

 ...


 ...

 
 

...




...




...

            
...
Controle da esquistossomose
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Controle da esquistossomose

  1. 1. 
  2. 2.                                                   
  3. 3. 3 Índice 1.Apresentação ...................................................................................................................................05 2.Introdução .......................................................................................................................................07 3.A Doença ..........................................................................................................................................11 3.1. Descrição ...................................................................................................................................11 3.2. Epidemiologia ...........................................................................................................................11 3.2.1. Agente Etiológico e Ciclo Evolutivo ..............................................................................11 3.2.2. Reservatórios / Hospedeiros Intermediários ...................................................................20 3.2.3. Mecanismo de Transmissão ............................................................................................25 3.2.4. Período de Incubação ......................................................................................................26 3.2.5. Período de Transmissibilidade ........................................................................................26 3.2.6. Suscetibilidade e Resistência ..........................................................................................27 3.2.7. Distribuição Geográfica ..................................................................................................27 3.2.8. Magnitude e Transcendência ..........................................................................................28 3.3. Sintomatologia e Formas Clínicas .............................................................................................28 3.3.1. Fase Aguda ou Toxêmica - Tipo 0 ..................................................................................28 3.3.2. Fase Crônica ...................................................................................................................29 3.3.2.1. Forma Intestinal - Tipo I ....................................................................................29 3.3.2.2. Forma Hepatointestinal - Tipo II .......................................................................30 3.3.2.3. Forma Hepatoesplênica - Tipo III ......................................................................30 3.3.2.4. Forma Hepatoesplênica Descompensada - Tipo IV ...........................................30 3.3.3. Outras Formas Clínicas ...................................................................................................31 3.4. Diagnóstico Laboratorial ...........................................................................................................31 3.4.1. Métodos Diretos ..............................................................................................................31 3.4.1.1. Pesquisa de Ovos de Schistosoma nas Fezes .....................................................31 3.4.1.2. Biópsia Retal .....................................................................................................32 3.4.1.3. Biópsia Hepática ................................................................................................32 3.4.1.4. Eclosão de Miracídios .......................................................................................32 3.4.1.5. Pesquisa de Antígenos Circulantes por Elisa de Captura ..................................32 3.4.2. Métodos Indiretos ...........................................................................................................33 3.4.2.1. Intradermorreação ..............................................................................................33 3.4.2.2. Outros Métodos Indiretos ..................................................................................33 3.5. Tratamento ................................................................................................................................34 3.5.1. Medicamentos Atualmente em Uso ..............................................................................35 3.5.2. Tratamento Cirúrgico ....................................................................................................36 4.O Controle .................................................................................................................................39 4.1. Atividades .................................................................................................................................39 4.1.1. Dimensionamento do Problema Esquistossomótico e Objetivos do Controle................. 39 4.1.2. Atividades de Controle e Avaliação ................................................................................42 4.1.3 Controle na Area Endêmica ............................................................................................43
  4. 4.                                
  5. 5.                                                             
  6. 6.                                                                                                                                                                                                                                   
  7. 7.                                              
  8. 8.     
  9. 9.    
  10. 10.                                                                                                                                                                                              
  11. 11.                                                                         
  12. 12.                                                                                  
  13. 13.      
  14. 14.       
  15. 15.                                                             
  16. 16.                                                                                                                                                                                  
  17. 17.                                           
  18. 18. 19 Durante o processo de migração dos ovos (cerca de uma semana) a maturação dos mesmos é ultimada. Organiza-se então no seu interior, o embrião, que é denominado de miracídio, iniciando-se então, novo ciclo. Figura 6 - Ciclo Biológico do S. mansoni (segundo S. B. Pessoa, in Parasitologia Médica) I. Penetração ativa da cercária no homem através da pele, quando em contato com a água infectada, desenvolvimento dos trematódeos no organismo do homem, acasalamento e postura. II. Os ovos nas fezes humanas dão saída aos miracídios, quando em contato com a água. III. Infecção dos planorbídeos, formação dos esporocistos e das cercárias, que fecham o ciclo, uma vez penetradas no homem. 1. Ovos com esporão lateral; 2. Miracídio, 3,4,5 e 6 Várias fases do desenvolvimento do esporocisto; 7 Cercária, que penetra no organismo e dá 9,10 e 11. Esquistossômulos. 12 Vermes adultos. 13 Vermes e acasalados.
  19. 19.                                                                                         
  20. 20.                                                                                                                                     
  21. 21.             
  22. 22.           
  23. 23.           
  24. 24.                                                                                                                                                            

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