PT - JOURNAL ARTICLE AU - Balu, Ramani AU - McCracken, Lindsey AU - Lancaster, Eric AU - Graus, Francesc AU - Dalmau, Josep AU - Titulaer, Maarten J. TI - A score that predicts 1-year functional status in patients with anti-NMDA receptor encephalitis AID - 10.1212/WNL.0000000000006783 DP - 2019 Jan 15 TA - Neurology PG - e244--e252 VI - 92 IP - 3 4099 - http://n.neurology.org/content/92/3/e244.short 4100 - http://n.neurology.org/content/92/3/e244.full SO - Neurology2019 Jan 15; 92 AB - Objective To construct a grading score that predicts neurologic function 1 year after diagnosis of anti-NMDA receptor (NMDAR) encephalitis.Methods Three hundred eighty-two patients with detailed information and functional status at 1 year were studied. Factors associated with poor status (defined as modified Rankin Scale score ≥3) were identified and incorporated into a multivariate logistic regression model. This model was used to develop a 5-point prediction score, termed the anti-NMDAR Encephalitis One-Year Functional Status (NEOS) score.Results Intensive care unit admission (p < 0.001), treatment delay >4 weeks (p = 0.012), lack of clinical improvement within 4 weeks (p < 0.001), movement disorder (p = 0.001), central hypoventilation (p < 0.001), elevated CSF white blood cell count (p < 0.001), elevated CSF protein level (p = 0.027), and abnormal MRI (p = 0.002) were associated with 1-year functional status in univariate analysis. Intensive care unit admission, treatment delay >4 weeks, lack of clinical improvement within 4 weeks, abnormal MRI, and CSF white blood cell count >20 cells/μL were independent predictors for outcome in multivariate regression modeling. These 5 variables were assigned 1 point each to create the NEOS score. NEOS score strongly associated with the probability of poor functional status at 1 year (3% for 0 or 1 point to 69% for 4 or 5 points, p < 0.001).Conclusions The NEOS score accurately predicts 1-year functional status in patients with anti-NMDAR encephalitis. This score could help estimate the clinical course following diagnosis and may aid in identifying patients who could benefit from novel therapies.ICU=intensive care unit; mRS=modified Rankin Scale; NEOS=anti-NMDAR Encephalitis One-Year Functional Status; NMDAR=NMDA receptor; WBC=white blood cell