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Background: Chorea is a common movement disorder in children, requiring thorough clinical assessment and appropriate tests for etiological diagnosis. Early identification of treatable conditions can lead to effective treatment, reducing morbidity and improving quality of life., Objective: To describe the clinical, demographic, and epidemiological characteristics of children and adolescents diagnosed with chorea., Methods: A retrospective cross-sectional study of pediatric patients treated in a fourth-level hospital in Bogotá, Colombia, from January 2008 to January 2022., Results: 81 patients with chorea were found. The most frequent etiologies were rheumatic fever (50.6 %), vascular chorea (29.3 %), and chorea secondary to lupus (11.1 %). Patients with chorea secondary to rheumatic fever (Sydenham's chorea) were older compared to other etiologies, 10.36 ± 3.41 years vs 8.29 ± 5.16, p = 0.037. The presence of another movement disorder or abnormalities during the physical examination suggests a different etiology from rheumatic fever. Moreover, the presence of psychiatric symptoms was similar in all etiologies. However, a correlation between age and psychiatric symptoms was observed with an odds ratio of 1.14 95 % CI 1.02-1.29 per year., Conclusions: Red flags in Sydenham's chorea suggesting an alternate etiology are younger age, the presence of other abnormal movements or other findings in the neurological exam or in the magnetic resonance imaging. No significant statistical differences were found between the etiologies with the presence of neuro-psychiatric manifestations. Nevertheless, these manifestations are very frequent in abnormal movements. This study evidenced the positive correlation between age and the presence of psychiatric symptoms., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)

Cerebrospinal fluid opening pressure values are associated with various neurologic diseases; however, numerous factors can modify this measurement. This study aims to describe factors related to modifications in opening pressure measurements in pediatric patients. Methods: A retrospective analysis of lumbar punctures in pediatric patients conducted by the neuropediatrics group with institutional standardization. Bivariate and linear regression analyses were performed to determine the association between opening pressure and variables included in the study. Results: 544 events, median age 107 months, median opening pressure 19.7 cm H 2 O. Bivariate analysis found no association with medication use; anesthetics that increased opening pressure were remifentanil ( P = .02) and propofol ( P = .05), along with a positive linear correlation between opening pressure and age ( P  < .0001). Multiple linear regression analysis revealed that age, BMI, male gender, and remifentanil use were associated with an increase in opening pressure, whereas corticosteroid withdrawal was associated with a reduction in opening pressure. There is an interaction between age and headache, with an association with increased opening pressure up to around 140 months. Conclusion: This study identifies factors associated with changes in opening pressure, crucial for estimating normal opening pressure values in children. Headaches, anesthetic use, and corticosteroid withdrawal are confirmed as significant factors., Competing Interests: Declaration of Conflicting InterestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.