Document 2924 DOCN M94A2924 TI Subclinical motor deficits in HIV infection are not influenced by intravenous drug abuse. DT 9412 AU Giesen HJ; Roick H; Hefter H; Jablonowski H; Freund HJ; Arendt G; Department of Neurology, University of Dusseldorf, Germany. SO Int Conf AIDS. 1994 Aug 7-12;10(1):193 (abstract no. PB0199). Unique Identifier : AIDSLINE ICA10/94369651 AB OBJECTIVE: Electrophysiological evaluation of individual motor performance is an appropriate means to quantify subclinical motor deficits in HIV Infection. These deficits may later on result in the HIV associated cognitive/motor complex. We wanted to find out whether motor performance is influenced by intravenous drug abuse (IVDA). METHODS: Most rapid alternating movements (MRAM) and the rise time of most rapid index finger extension movements (CT = contraction time) as described in the literature were measured in 114 HIV positive individuals who acquired HIV either by IVDA (n = 57) or via sexual transmission (n = 57). Both groups were matched for age, time since diagnosis, CD 4 cell counts and CDC stages (II n = 20, III n = 19, IV n = 18). Results were compared to those of n = 98 HIV negative healthy controls. RESULTS: Mean values of MRAM and CT as well as the absolute numbers of pathological performance were similar without statistically significant differences between both groups irrespective of the mode of infection. They were significantly slower (MRAM; p < 0.001 dominant hand) or prolonged (CT; p < 0.001 dominant hand) than in the controls. DISCUSSION AND CONCLUSIONS: Intravenous drug abuse despite its possible influence on the central nervous system does not interfere with the HIV-induced changes of motor performance. DE AIDS Dementia Complex/DIAGNOSIS/*PHYSIOPATHOLOGY Human Laterality/PHYSIOLOGY Motor Skills/*PHYSIOLOGY Muscle Contraction/PHYSIOLOGY *Neurologic Examination Neuromuscular Diseases/DIAGNOSIS/*PHYSIOPATHOLOGY Reaction Time/PHYSIOLOGY Reference Values Substance Abuse, Intravenous/COMPLICATIONS/*PHYSIOPATHOLOGY MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).