M R P Gascón1, J Casseb2, J Smid3, J E Vidal3, L A M Fonseca3, A Paiva4, M J Haziot3, A C Penalva de Oliveira3. 1. Department of Psychology, Hospital das Clinicas, São Paulo University Medical School, São Paulo, Brazil. Electronic address: Maria.gascon@hc.fm.usp.br. 2. Institute of Tropical Medicine, São Paulo University, São Paulo, Brazil. 3. Institute of Infectious Diseases "Emílio Ribas", São Paulo, Brazil. 4. Department of Dermatology, Sao Paulo University Medical School, Sao Paulo 01246-903, Brazil.
Abstract
The main goal of this study was to investigate the presence of cognitive impairment in patients infected with HTLV-1 presenting or not TSP/HAM. METHODS: Cross-sectional study including 104 participants: 37 asymptomatic HTLV-1 carriers, 37 patients diagnosed with TSP/HAM and 30 HTLV-1 negative control patients. Within the HTLV-1 positive group, 53 were female and 21 were male, the average age was 46 (SD=13.5) and the average schooling time was 7.7years (SD=3.3).The sociodemographic variables (genre, age and education) were compared between the three groups. The assessment tools used were: Beck Depression Inventory, Lawton's Activities of Daily Life Scale and a complete neuropsychological battery. The application of these assessment tools was carried out in blind. Both HTLV-1 asymptomatic subjects and HAM/TSP patients showed a lower performance on neuropsychological tests and higher depression scores when compared to the control group. HTLV-1 patients performed poorly in several cognitive domains, but only fluid intelligence, estimated intellectual functioning, immediate and delayed recall of visual memory and information processing speed (in the specific case of patients with TSP/HAM) reached statistical significance when compared with controls. Depression was not associated with cognitive impairment. HTLV-1 carriers presented a higher frequency of cognitive impairment than normal controls.
The main goal of this study was to investigate the presence of cognitive impairment in patients infected with HTLV-1 presenting or not TSP/HAM. METHODS: Cross-sectional study including 104 participants: 37 asymptomatic HTLV-1 carriers, 37 patients diagnosed with TSP/HAM and 30 HTLV-1 negative control patients. Within the HTLV-1 positive group, 53 were female and 21 were male, the average age was 46 (SD=13.5) and the average schooling time was 7.7years (SD=3.3).The sociodemographic variables (genre, age and education) were compared between the three groups. The assessment tools used were: Beck Depression Inventory, Lawton's Activities of Daily Life Scale and a complete neuropsychological battery. The application of these assessment tools was carried out in blind. Both HTLV-1 asymptomatic subjects and HAM/TSPpatients showed a lower performance on neuropsychological tests and higher depression scores when compared to the control group. HTLV-1patients performed poorly in several cognitive domains, but only fluid intelligence, estimated intellectual functioning, immediate and delayed recall of visual memory and information processing speed (in the specific case of patients with TSP/HAM) reached statistical significance when compared with controls. Depression was not associated with cognitive impairment. HTLV-1 carriers presented a higher frequency of cognitive impairment than normal controls.
Authors: Ana Patrícia Bastos Ferreira; Ana Dolores Firmino Santos do Nascimento; Pedro Augusto Sampaio Rocha-Filho Journal: J Neurovirol Date: 2022-01-03 Impact factor: 2.643
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