HIV: practical implications for the practicing allergist-immunologist

Area of Science:

• Immunology
• Infectious Diseases
• Allergy & Immunology

Background:

• Human immunodeficiency virus (HIV) infection leads to profound immunologic alterations, primarily cell-mediated immune deficiency.
• This immune dysfunction increases susceptibility to opportunistic infections and can also heighten the risk of developing allergic and other immune-mediated diseases.
• The advent of highly active antiretroviral therapy (HAART) has transformed HIV management, leading to immune reconstitution but also introducing new clinical considerations.

Purpose of the Study:

• To review the impact of HIV/AIDS on allergic diseases.
• To discuss the unique clinical, pathophysiologic, diagnostic, and therapeutic challenges in HIV-infected patients on HAART.
• To highlight the evolving landscape of allergic disease management in the context of prolonged life expectancy for HIV patients.

Main Methods:

• Comprehensive literature search of MEDLINE and OVID databases.
• Keywords included HIV, AIDS, IgE, allergic rhinitis, adverse drug reaction, asthma, COPD, food allergy, and immunization.
• Selection of relevant and current articles, with examination of reference lists for further pertinent studies.

Main Results:

• HIV infection causes immune alterations predisposing patients to allergic diseases.
• HAART promotes immune reconstitution, which can paradoxically lead to immunopathologic conditions.
• HIV-infected patients exhibit increased prevalence of allergic rhinitis, adverse drug reactions, and noninfectious pulmonary complications.

Conclusions:

• Increased life expectancy due to HAART means HIV patients are more likely to encounter chronic conditions like allergic diseases.
• Understanding the complex interplay between HIV, HAART, and allergic conditions is crucial for effective patient management.
• Anticipating and addressing allergic rhinitis, asthma, and drug reactions in HIV-infected individuals will become increasingly important.