Helminthic Infections Cestodes NEMATODES (Round Worms)

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Cestodes NEMATODES (Round Worms)
  • Nematodes are elongated and symmetrical round worms. They are classified as intestinal or tissue nematodes.

Helminthic Infections Tissue Nematodes TRICHINELLOSIS

  • It develops after ingestion of meat containing cysts of Trichinella, like pork or other meat.
  • Infections are usually mild and asymptomatic. Heavy infections can cause enteritis, periorbital edema, myositis and sometimes death.
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Lab findings of Helminthic Infections

  • · There is marked eosinophilia, increased IgE, in­creased creatine phosphokinase level, rise in ti­tre of of parasite antibody.
  • ·Larvae may be seen in histopathologic section.

Treatment of Helminthic Infections

  • Bed rest
  • Antipyretics
  • Analgesics
  • Glucocorticoids for myositis and myocarditis Mebendazole and Albendazole are effective against enteric stages of the parasite but not against encysted larvae.
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Cestodes NEMATODES (Round Worms) Life Cycle

Visceral and Ocular larva migrans Helminthic Infections-

  • It is a syndrome caused by nematodes which nor­mally do not infect the humans. They migrate through the host and cause eosinophilic inflammation. Example is Toxocara canis.

Cutaneous larva migrans –

  • Creeping eruptions or cutaneous larva migrans is ser­piginous skin eruptions due, to larvae of hookworms which usually attack the dog and cats, called Ancy­lostoma braziliense.
  • It is especially common in children.
  • There are erythematous lesions which are pruritic. Vesicle and bullae may form later.

Treatment of Helminthic Infections

  • Ivermectin – 200 mg/kg or Albendazole 200 mg BD for 3 days.


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