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Cryptosporidiosis in HIV-seropositive patients

C Blanshard1, A M Jackson, D C Shanson

  • 1HIV/GUM Unit, Westminster Hospital, London.

The Quarterly Journal of Medicine
|November 1, 1992
PubMed

Insights

Cryptosporidiosis in HIV patients presents with varied clinical patterns, including transient, chronic, and fulminant disease. Survival is significantly impacted by disease severity and CD4 counts, with zidovudine being the only effective treatment.

Area of Science:

  • Infectious Diseases
  • Immunology
  • Gastroenterology

Background:

  • Cryptosporidiosis incidence is rising in HIV-infected individuals, particularly those with AIDS.
  • A significant seasonal variation in cryptosporidiosis cases has been observed.
  • The disease course in Human Immunodeficiency Virus (HIV) patients is not fully understood.

Purpose of the Study:

  • To investigate the clinical patterns and outcomes of cryptosporidiosis in HIV-infected patients.
  • To identify factors influencing disease severity and patient survival.
  • To understand the heterogeneity of cryptosporidiosis in this population.

Main Methods:

  • Retrospective study of 128 HIV-infected patients diagnosed with cryptosporidiosis.
  • Classification of disease into four clinical patterns: transient, chronic, fulminant, and asymptomatic.
  • Analysis of CD4 lymphocyte counts, weight loss, and co-infections.

Main Results:

  • Four clinical patterns identified: transient (28.7%), chronic (59.7%), fulminant (7.8%), and asymptomatic (3.9%).
  • Fulminant disease (stool >2L/day) occurred in patients with CD4 <50/mm3, significant weight loss, and other infections, with a median survival of 5 weeks.
  • Survival varied by pattern: transient (36 weeks), chronic (20 weeks), and fulminant (5 weeks). Zidovudine was the only treatment impacting survival.

Conclusions:

  • Cryptosporidiosis in HIV-infected individuals is a heterogeneous disease with distinct clinical presentations.
  • CD4 count is a critical determinant of disease severity and prognosis.
  • Fulminant cryptosporidiosis carries a poor prognosis, highlighting the need for effective management strategies.

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