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- Title
Anti-N-methyl-d-aspartate receptor encephalitis in Māori and Pacific Island children in New Zealand.
- Authors
Jones, Hannah F; Mohammad, Shekeeb S; Reed, Peter W; Dunn, Paul P J; Steele, Richard H; Dale, Russell C; Sharpe, Cynthia
- Abstract
<bold>Aim: </bold>To investigate the incidence and severity of anti-N-methyl-d-aspartate (anti-NMDA) receptor encephalitis in children from New Zealand.<bold>Method: </bold>A retrospective case series was undertaken of all children (≤18y) diagnosed with anti-NMDA receptor encephalitis from January 2008 to October 2015.<bold>Results: </bold>Sixteen patients were identified with anti-NMDA receptor antibodies in the cerebrospinal fluid, three of whom had an associated teratoma. Fifteen children had Māori and/or Pacific Island ancestry. The incidence of anti-NMDA receptor encephalitis in Māori children was 3.4 per million children per year (95% confidence interval [CI] 1.4-7.0) and the incidence in Pacific children was 10.0 per million children per year (95% CI 4.3-19.8) compared with 0.2 per million children per year (95% CI 0.0-1.0) in children without Māori or Pacific Island ancestry. Sixty-seven per cent of children had a good outcome (modified Rankin Score ≤2) at 2 years' follow-up. This compares unfavourably with other cohorts despite a shorter median time to first-line immunotherapy (13d; range 4-89) and a higher proportion of children being treated with second-line therapy (50%).<bold>Interpretation: </bold>Māori and Pacific Island children have a higher incidence of anti-NMDA receptor encephalitis and possibly a more severe phenotype. These data suggest a genetic predisposition to anti-NMDA receptor encephalitis in these populations.
- Subjects
NEW Zealand; ANTI-NMDA receptor encephalitis; AUTOIMMUNE diseases; CEREBROSPINAL fluid; JUVENILE diseases; TERATOMA; PEDIATRICS; DISEASE susceptibility; PATIENT aftercare; TREATMENT effectiveness; DISEASE incidence; RETROSPECTIVE studies; SEVERITY of illness index
- Publication
Developmental Medicine & Child Neurology, 2017, Vol 59, Issue 7, p719
- ISSN
0012-1622
- Publication type
journal article
- DOI
10.1111/dmcn.13420