Abstract
Fabry disease (FD) is a X-linked multi-systemic metabolic disorder with mainly renal, cardiac and neurological dysfunction. The neuropsychological impact is still unclear, with previous study results ranging from disturbance of speed of information processing and executive functions to a normal cognitive profile. The aim of our study was to gain further insight into the neuropsychological involvement of FD. Patients with genetically proven FD were enrolled at the Ghent University Hospital by their treating neurologist. We evaluated the cognitive status of each patient by a thorough neuropsychological test battery and these exact same neuropsychological assessments were repeated after a follow-up period of 2-4years and at a second follow-up moment 1-4years after the first follow-up. Thirteen patients with FD were included (8 female) with mean age of 41.5years (SD ± 13.9) at baseline. All patients had normal neuropsychological test results on the subtests included in the cognitive battery at baseline, according to age-, gender- and education matched normative data. At the first follow-up moment (2-4years after baseline), six patients were included (3 male), mean age 45.3years. At the second follow-up (1-4years after first follow-up), four patients (2 male) were included, with mean age 45years. Both at the first and second follow-up moments, all patients obtained normal scores on the subtests. The cognitive functioning appeared to be in the normal range at baseline and did not decline over a follow-up period of 3-8years, suggesting that cognition in FD patients may be well-preserved in time.
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