Iatrogenic risk factors for cytomegalovirus retinitis

William G Hodge1, Jean-François Boivin, Stanley H Shapiro

  • 1University of Ottawa Eye Institute, Ottawa, Ontario. whodge@ottawahospital.on.ca

Abstract

Insights

Systemic corticosteroid use significantly increases the risk of cytomegalovirus (CMV) retinitis in patients with acquired immunodeficiency syndrome (AIDS). This finding highlights a critical iatrogenic risk factor for CMV retinitis in immunocompromised individuals.

Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Immunology

Background:

  • Cytomegalovirus (CMV) retinitis is a serious opportunistic infection in patients with acquired immunodeficiency syndrome (AIDS).
  • Identifying iatrogenic risk factors is crucial for preventing CMV retinitis in this vulnerable population.

Purpose of the Study:

  • To investigate iatrogenic risk factors associated with the development of CMV retinitis in patients diagnosed with AIDS.

Main Methods:

  • A case-control study was conducted involving 120 AIDS patients with CMV retinitis and 159 AIDS patients without CMV retinitis.
  • Patients had CD4 counts below 50 cells/microL.
  • Iatrogenic factors examined included corticosteroid use, chemotherapy, radiotherapy, and blood transfusions.

Main Results:

  • Systemic corticosteroid use was identified as the sole significant predictive factor for CMV retinitis.
  • Patients using steroids had an odds ratio of 6.41 (95% CI: 2.35-17.51) for developing CMV retinitis.

Conclusions:

  • Systemic steroid administration is a significant iatrogenic risk factor for CMV retinitis in AIDS patients.
  • Clinical management should consider the heightened risk of CMV retinitis associated with corticosteroid therapy in immunocompromised individuals.

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