Billharzioses Flashcards

1
Q

Parasite

A

Trématodes : vers plats non segmentés

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2
Q

Espèces

A

6 espèces pathogènes pour l’homme
En France :
- Schistosoma haematobium
- Schistisoma mansoni

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3
Q

Epidémiologie

A

Fréquent en France

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4
Q

Hôte intermédiaire

A

Mollusques

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5
Q

Formes cliniques

A

Dépend de la localisation des vers adultes

Génito-urinaire
Intestinale et hépatique

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6
Q

Symptômes

A

Pénétration transcutanée :
Dermatite cercarienne : Papules

Dissémination : Réactions immuno-allergiques

Blocage des œufs dans les tissus :
Cicatrice, fibrose, calcification
TD ou vessie

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7
Q

Transmission

A

Pénétration transcutanée

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8
Q

Bilharziose urinaire

A

S. Haematobium

Hématurie
Douleurs mictionnelles
Dysurie
Pollakiurie

Complications :

  • Surinfection : pyélonéphrite et cystite
  • Cancer vésical
  • Lithiase
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9
Q

Bilharziose génitale

A

Urétrite
Epididymite
Salpingite
Endométrite

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10
Q

Bilharziose intestinale

A

S. Mansoni

Alternance diarrhée- constipation
DA

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11
Q

Bilharziose hépatique

A

S. Mansoni

Atteinte hépato-splénique

Hépato-splénomégalie 
Fibrose hépatique 
HT portale 
Ascite 
Hémorragies digestives
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12
Q

Diagnostic

A

Contexte clinique

Sérologie
Hyperéosinophilie
EPS
EPU

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13
Q

Traitement

A

Praziquantel

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14
Q

Prévention

A

Lutte contre les mollusques

Pas de bains d’eau douce dans les zones endémiques

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