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Journal Article
Review
Neurocognitive dysfunction in the highly active antiretroviral therapy era.
Current Opinion in Infectious Diseases 2012 Februrary
PURPOSE OF REVIEW: The aim is to review the recent confirmation of the continued high prevalence of HIV-associated neurocognitive disorders (HAND) despite highly active antiretroviral therapy (HAART) in a large cohort study and to review the recent studies that have begun to address the potential reasons for such persistence.
RECENT FINDINGS: HAND remains prevalent, despite effective viral suppression in cerebrospinal fluid and plasma. Several studies have shown the benefit of a central nervous system (CNS) penetrating HAART regimen (neuro-HAART) in improving neurocognitive outcomes. New evidence supports the early initiation of HAART. There are recent data to suggest that HAART may be CNS toxic, but evidence is still limited. Ageing does not currently explain the persistence of HAND. A recent study has also shown a correlation between cardiovascular risk factors and HAND.
SUMMARY: The prevalence of HAND remains high in the HAART era. Most studies point towards the benefit of neuro-HAART in the prevention and treatment of HAND. The possible neurotoxicity of HAART needs to be further evaluated. It may be too early to detect a combined ageing and HIV effect and long-term studies are required. The link between cardiovascular disease and neurocognitive decline in HIV needs further exploration. Effective screening in clinical practice is paramount in prevention of the morbidity and mortality associated with HAND.
RECENT FINDINGS: HAND remains prevalent, despite effective viral suppression in cerebrospinal fluid and plasma. Several studies have shown the benefit of a central nervous system (CNS) penetrating HAART regimen (neuro-HAART) in improving neurocognitive outcomes. New evidence supports the early initiation of HAART. There are recent data to suggest that HAART may be CNS toxic, but evidence is still limited. Ageing does not currently explain the persistence of HAND. A recent study has also shown a correlation between cardiovascular risk factors and HAND.
SUMMARY: The prevalence of HAND remains high in the HAART era. Most studies point towards the benefit of neuro-HAART in the prevention and treatment of HAND. The possible neurotoxicity of HAART needs to be further evaluated. It may be too early to detect a combined ageing and HIV effect and long-term studies are required. The link between cardiovascular disease and neurocognitive decline in HIV needs further exploration. Effective screening in clinical practice is paramount in prevention of the morbidity and mortality associated with HAND.
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