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3.7.3 - HIV and AIDS

from Section 3.7 - Infection and Immunity

Published online by Cambridge University Press:  27 July 2023

Ned Gilbert-Kawai
Affiliation:
The Royal Liverpool Hospital
Debashish Dutta
Affiliation:
Princess Alexandra Hospital NHS Trust, Harlow
Carl Waldmann
Affiliation:
Royal Berkshire Hospital, Reading
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Summary

Key Learning Points

  1. 1. There are four stages of human immunodeficiency virus (HIV) infection: primary HIV infection with a CD4 count of >500, chronic asymptomatic infection with a CD4 count of >350, symptomatic infections with a CD4 count of <350 and acquired immune deficiency syndrome (AIDS) accompanied by a CD4 count of <200.

  2. 2. CD4 T-helper cell lymphocytes are responsible for both adaptive and cell-based immunity, and are active against both infectious disease and neoplasms.

  3. 3. There are 27 AIDS-defining clinical conditions specified by the Centers for Disease Control and Prevention.

  4. 4. Recent evidence suggests improved outcomes for intensive care patients treated with highly active anti-retroviral therapy (HAART).

  5. 5. Intensive care patients not already treated with HAART, with a low CD4 count and an opportunistic infection, are at high risk of immune reconstitution inflammatory syndrome.

Type
Chapter
Information
Intensive Care Medicine
The Essential Guide
, pp. 251 - 253
Publisher: Cambridge University Press
Print publication year: 2021

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References

References and Further Reading

Andrade, HB, Shinotsuka, CR, da Silva, IRF, et al. Highly active antiretroviral therapy for critically ill HIV patients: a systematic review and meta-analysis. PLoS One 2017;12:e0186968.CrossRefGoogle ScholarPubMed
Centers for Disease Control and Prevention. HIV basics. www.cdc.gov/hiv/basics/index.htmlGoogle Scholar
HIVinfo.NIH.gov. Clinical guidelines [guidelines on use of anti-retroviral agents in adults and adolescents living with HIV]. aidsinfo.nih.gov/guidelinesGoogle Scholar
Huang, L, Quartin, A, Jones, D, et al. Intensive care of patients with HIV infection. N Engl J Med 2006;355:173–81.CrossRefGoogle ScholarPubMed
Joint United Nations Programme on HIV/AIDS (UNAIDS). 2019. UNAIDS data 2019. www.unaids.org/sites/default/files/media_asset/2019-UNAIDS-data_en.pdfGoogle Scholar

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