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Case report: venous thromboembolism in AIDS.

D M Becker1, T J Saunders, B Wispelwey

  • 1Department of Medicine, University of Virginia Health Sciences Center, Charlottesville.

The American Journal of the Medical Sciences
|June 1, 1992
PubMed
Summary

Patients with Acquired Immunodeficiency Syndrome (AIDS) may develop venous thromboembolism, even without typical risk factors. This complication can occur in active individuals, highlighting the need for clinical vigilance in HIV-positive patients.

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Area of Science:

  • Medical Science
  • Infectious Diseases
  • Hematology

Background:

  • Acquired Immunodeficiency Syndrome (AIDS) is a complex condition impacting multiple organ systems.
  • Venous thromboembolism (VTE), encompassing deep vein thrombosis and pulmonary embolism, is a known complication in various chronic illnesses.
  • The specific risk and presentation of VTE in ambulatory, asymptomatic patients with AIDS require further elucidation.

Observation:

  • Three active, ambulatory patients diagnosed with AIDS presented with venous thromboembolism.
  • These patients lacked traditional risk factors for deep vein thrombosis (DVT) or pulmonary embolism (PE).
  • Coagulation abnormalities were noted, including one patient with low IgG anticardiolipin antibody titer and two with low free Protein S levels, one critically low.

Findings:

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  • The occurrence of VTE in patients with AIDS, irrespective of conventional risk factors, suggests a potential link between HIV infection and hypercoagulability.
  • Subtle or overt hemostatic system dysfunctions, such as anticardiolipin antibodies and Protein S deficiency, may contribute to thrombotic events in this population.
  • The clinical presentation underscores that VTE can be an unheralded complication in HIV-infected individuals.

Implications:

  • Clinicians managing patients with HIV/AIDS should maintain a high index of suspicion for VTE.
  • Routine screening for thrombophilia may be warranted in select AIDS patients, particularly those with unexplained thromboembolic events.
  • Further research is needed to understand the precise mechanisms linking HIV infection to increased VTE risk and to establish optimal prophylactic and therapeutic strategies.