Document 2901 DOCN M94A2901 TI Neuropsychological and neurodiagnostic by imaging (MRI-SPECT) early signs of AIDS dementia complex (ADC) in asymptomatic HIV-1 infected subjects: follow up. DT 9412 AU Rosci MA; Pigorini F; Bernabei A; Pau FM; Merigliano DE; Leonetti C; L. Spallanzani Hospital for Infectious Diseases, Rome, Italy. SO Int Conf AIDS. 1994 Aug 7-12;10(1):199 (abstract no. PB0226). Unique Identifier : AIDSLINE ICA10/94369674 AB The objective of our study was to define the evolution of the early signs of AIDS Dementia Complex, shown by neuropsychological tests, SPECT (Single Photon Emission Computed Tomography) and MRI, at base line observation (AIDS, Volume 6 No. 11-1992), in asymptomatic HIV-1 infected subjects. We also aimed at defining the effect of antiretroviral therapy on these early signs. 42 out of the 95 patients studied were reevaluated after 6-12 months from the first visit, by psychometric tests; only 39 out of 42 have been receiving antiretroviral therapy; 29 out of 42 underwent SPECT exam also; 9 out of 42 have not been receiving any antiretroviral therapy. Our results seem to show: a) the neurological involvement, once the HIV-1 infection is acquired, may be precocious and be present for a long time in a subclinical form, detectable only by particular techniques; b) lacking correlation between mental decay degree, shown by neuropsychological tests, presence of abnormalities at SPECT, and immunological status (p < 0.50); c) lacking correlations between degree of immunological impairment and evolution of neurological involvement, shown by neuropsychological tests and SPECT (p < 0.50); d) antiretroviral treatment induce improvement in SPECT picture and in performance at psychometric tests not in all patients and independently of immunological conditions; e) worsening of all untreated subjects in spite of their persisting good immunological status (CD4+ cells > 500/mmc) in SPECT imaging. DE Acquired Immunodeficiency Syndrome/DRUG THERAPY Antiviral Agents/THERAPEUTIC USE AIDS Dementia Complex/*DIAGNOSIS/PSYCHOLOGY Follow-Up Studies Human *HIV-1 Magnetic Resonance Imaging Neurologic Examination Neuropsychological Tests Tomography, Emission-Computed, Single-Photon MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).