Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)The aim of this study was to evaluate the frequency of seizures in systemic sclerosis (SSc) and to determine the clinical and laboratory features associated with their occurrence. Thirty-four SSc patients (ACR criteria) were analyzed by a standard interview, physical examination, and review of medical charts. Risk factors for seizures, clinical manifestations, associated co-morbidities and current treatment were evaluated. We identified 3 (8.8 %) SSc patients with seizures. A higher median age [61 (35-64) vs. 48 (27-71) years, p = 0.0005] and higher activity score [4.75 (4.5-5.0) vs. 2.5 (0-5-5) years, p = 0.006] were observed in SSc patients with seizures. No other clinical or laboratory feature was associated with the occurrence of seizure in this cohort. This study demonstrated a higher prevalence of seizures in SSc when compared to general population. Seizures were associated with older age and higher activity score in this cohort.33717211724Federico FoundationConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)CNPq [300665/2009-1, 2009/06049-6]FAPESP [2008/02917-0]