HIV-associated neurocognitive disorders

Radiopaedia • CC-by-nc-sa 3.0 • de

HIV-associated neurocognitive disorders (HANDs), is a term that emerged from an international conference in 2006 , and corresponds to a group of clinical syndromes related to the HIV infection in the cells of the nervous system expressing different degrees of impairment of cognition and associated functioning. They are part of neuroAIDS.

Three different clinical conditions have been defined :

asymptomatic neurocognitive impairment: characterized by impairment in cognitive function clinically diagnosed, however the everyday functioning is not affected
mild neurocognitive disorder: characterized by impairment in cognitive function clinically diagnosed and mild interference in everyday functioning
HIV-associated dementia (HAD): characterized by marked impairment in cognitive function which significantly limits abilities to function in daily work, home and social activities. It was previously referred as AIDS dementia complex and is the only condition which demonstrates clear recognisable features of HIV encephalopathy on MRI.