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Katayama syndrome.

Allen G Ross1, David Vickers, G Richard Olds

  • 1Department of Community Health and Epidemiology, College of Medicine, University of Saskatchewan, Saskatoon, Canada. allen.ross@usask.ca

The Lancet. Infectious Diseases
|February 24, 2007
PubMed
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Katayama syndrome, an early schistosomiasis manifestation, is often misdiagnosed due to delayed, non-specific symptoms. Early artemisinin treatment may reduce the risk of this parasitic infection.

Area of Science:

  • Tropical Medicine
  • Infectious Diseases
  • Parasitology

Background:

  • Katayama syndrome is an early clinical phase of schistosomiasis, a parasitic disease caused by Schistosoma worms.
  • It manifests 14-84 days post-infection, often presenting with non-specific symptoms, leading to potential misdiagnosis in non-endemic areas.

Purpose of the Study:

  • To describe the clinical presentation, diagnosis, and treatment of Katayama syndrome.
  • To highlight the importance of considering schistosomiasis in patients with relevant exposure history.

Main Methods:

  • Review of clinical cases presenting with symptoms consistent with Katayama syndrome.
  • Diagnostic methods included serological antibody detection, egg excretion analysis, and radiological imaging.
  • Clinical response to praziquantel and artemisinin treatments was evaluated.

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Main Results:

  • Patients typically present with fever, cough, myalgia, headache, and abdominal tenderness.
  • Eosinophilia and a history of water contact are common findings.
  • Radiological findings may include diffuse pulmonary infiltrates.
  • Serum antibodies and schistosome eggs can confirm infection.
  • Treatment with praziquantel, with or without steroids, is effective.
  • Early artemisinin administration may prevent syndrome development.

Conclusions:

  • Katayama syndrome requires timely diagnosis and treatment to prevent complications.
  • Awareness of exposure history and characteristic symptoms is crucial for clinicians.
  • Praziquantel is an effective treatment, and artemisinin shows promise for early intervention.