Pediatric neurology · 2024
Efficacy and Safety of Rituximab Treatment for Anti-N-Methyl-d-Aspartate Receptor Encephalitis Without Tumor in Children.
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Zhang Dongqing, Li Baomin, Li Jun, Tong Lili, Yang Lu
Аннотация
BACKGROUND: To evaluate the efficacy and safety of rituximab treatment for anti-N-methyl-d-aspartate receptor (NMDAR) encephalitis without tumor in children.
METHODS: Eighteen pediatric patients with NMDAR encephalitis treated with rituximab after failure of intravenous immunoglobulin (IVIG) and methylprednisolone treatment were analyzed retrospectively in terms of their medical history, clinical features, laboratory examination results, and treatments. The modified Rankin scale (mRS) score, peripheral blood CD19+ B cells, recurrence, and adverse events were used to evaluate the efficacy and safety of rituximab.
RESULTS: The patients were treated with rituximab 3.2 ± 1.0 days after the end of IVIG and methylprednisolone treatment. After initial rituximab treatment for four weeks, the mRS score and number of CD19+ B cells in all patients were significantly lower than those before treatment (P < 0.05). At the last follow-up (44.1 months, 17.7 S.D.), all patients had recovered well (mRS ≤2), 14 patients (77.8%) recovered completely (mRS = 0), three patients had recurrent seizures, and one patient had mental and language impairment. Two patients had transient mild adverse events during infusion, and none of the other patients experienced severe adverse events during hospitalization or follow-up.
CONCLUSIONS: Rituximab appears safe and may be effective for the treatment of anti-NMDAR encephalitis without tumor in children refractory to first-line agents.
METHODS: Eighteen pediatric patients with NMDAR encephalitis treated with rituximab after failure of intravenous immunoglobulin (IVIG) and methylprednisolone treatment were analyzed retrospectively in terms of their medical history, clinical features, laboratory examination results, and treatments. The modified Rankin scale (mRS) score, peripheral blood CD19+ B cells, recurrence, and adverse events were used to evaluate the efficacy and safety of rituximab.
RESULTS: The patients were treated with rituximab 3.2 ± 1.0 days after the end of IVIG and methylprednisolone treatment. After initial rituximab treatment for four weeks, the mRS score and number of CD19+ B cells in all patients were significantly lower than those before treatment (P < 0.05). At the last follow-up (44.1 months, 17.7 S.D.), all patients had recovered well (mRS ≤2), 14 patients (77.8%) recovered completely (mRS = 0), three patients had recurrent seizures, and one patient had mental and language impairment. Two patients had transient mild adverse events during infusion, and none of the other patients experienced severe adverse events during hospitalization or follow-up.
CONCLUSIONS: Rituximab appears safe and may be effective for the treatment of anti-NMDAR encephalitis without tumor in children refractory to first-line agents.