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The olfactory loss that accompanies an HIV infection
D E Hornung1, D B Kurtz, C B Bradshaw
1Smell and Taste Disorders Clinic, SUNY HSC, Syracuse, NY 13210, USA. hornung@vm.stlawu.edu
Physiology & Behavior
|October 7, 1998
Summary
HIV infection can impair odor identification due to neurocognitive decline and nasal issues. Olfactory threshold changes are primarily linked to nasal pathologies in HIV patients.
Area of Science:
- Neurology
- Immunology
- Otolaryngology
Background:
- HIV infection is linked to reduced olfactory ability.
- Reduced odorant identification may precede AIDS Dementia Complex (ADC).
- The exact cause of olfactory changes in HIV remains unclear.
Purpose of the Study:
- Investigate factors influencing olfactory ability in HIV-positive individuals.
- Differentiate between neurocognitive and peripheral olfactory system contributions to olfactory decline.
- Examine the relationship between olfactory function and AIDS Dementia Complex.
Main Methods:
- Cross-sectional study design.
- Assessment of neuropsychological, neurological, otolaryngological, auditory, and olfactory status.
- Stepwise regression analysis to identify influencing factors.
Main Results:
- Odorant identification is influenced by age, nasal pathology, neurocognitive ability, and ADC severity.
- Olfactory thresholds are primarily affected by nasal pathologies.
- Identification and threshold tests may indicate different olfactory pathologies.
Conclusions:
- Nasal pathologies contribute significantly to olfactory decline in HIV.
- Olfactory changes in HIV may be partly secondary to nasal issues.
- HIV-positive patients are a valuable cohort for studying olfactory function determinants.
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