Evidence map›Paper›PMID 40907243›Full record

ArticlePediatric neurology2025

Pediatric N-Methyl-d-Aspartate Receptor Encephalitis is Differentiated From Encephalitis Mimickers by Early Elevated Blood Pressure.

Naomi R Kass, Elizabeth Ledbetter, Timothy A Erickson, Jonathan M Yarimi, Anthony Zoghbi, Eyal Muscal, Kristy O Murray, Kristen S Fisher, Alexander J Sandweiss

Abstract read
In one paragraph

Article in Pediatric neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Naomi R KassDivision of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas.
Elizabeth LedbetterDivision of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas.
Timothy A EricksonLaboratories for Emerging and Tropical Diseases, School of Public Health, Texas A&M University, College Station, Texas.
Jonathan M YarimiMemorial Division of Pediatric Neurology, Joe DiMaggio Children's Hospital, Hollywood, Florida.
Anthony ZoghbiDepartment of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, Texas.
Eyal MuscalSection of Rheumatology, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas.
Kristy O MurrayDivision of Innovation and Research, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.
Kristen S FisherDivision of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas.
Alexander J SandweissDivision of Pediatric Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas; Center for Human Immunobiology, Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas. Electronic address: alexander.sandweiss@bcm.edu.

Funding

Uncovering the Genetic Architecture of Extremely Treatment-Resistant Schizophrenia Using Whole Genome SequencingK23MH121669 · NIMH · NEW YORK STATE PSYCHIATRIC INSTITUTE DBA RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC · PI ZOGHBI, ANTHONY · 2020 to 2024
$978k
NIMH NIH HHS K23 MH121669
6 · The paper itself

Abstract

backgroundPediatric N-methyl-d-aspartate receptor (NMDAR) encephalitis (pNMDARE) is characterized by severe neuropsychiatric symptoms and prolonged hospitalization and recovery. Early pNMDARE diagnosis is complicated by neuropsychiatric mimickers requiring strong clinical suspicion to escalate to the required lumbar puncture (LP), delaying diagnosis and treatment. Since autonomic dysfunction is a cardinal feature of pNMDARE, we hypothesized that early vital signs serve as a potential noninvasive biomarker to screen for appropriate escalation of pNMDARE evaluation.

methodsThis is a retrospective, case-control analysis of patients with pNMDARE between 2021 and 2023. Patients diagnosed with pNMDARE as determined by clinical presentation and positive cerebrospinal fluid (CSF) antibodies (Abs) were compared with control subjects who were evaluated for pNMDARE, including an LP, but were negative.

resultsFifty-seven patients were included for analysis: 23 diagnosed with pNMDARE and 34 without. When standardized for age, sex, and height, the pNMDARE group had higher systolic and diastolic BP percentiles (BP%ile) compared with the anti-NMDAR Ab-negative group (systolic BP%: 95.0% ± 2.3% vs 68.8% ± 4.4%, respectively, P < 0.001; diastolic BP%: 88.3% ± 2.8% vs 61.3% ± 4.1%, respectively; P < 0.001). A receiver operator curve indicated that the shortest Euclidian distance for systolic BP%ile was 99

conclusionsAlthough CSF Ab is required for the diagnosis of pNMDARE, screening tools may help hasten clinical suspicion for the need for an LP. We identified elevated BP as a potential differentiating early clinical marker specific to pNMDARE. This fact corroborates our current understanding of dysautonomia in pNMDARE and provides a potential clinical marker suitable for future research and validation.

Indexed as

Anti-N-Methyl-D-Aspartate Receptor EncephalitisBlood PressureHypertensionAdolescentBiomarkersCase-Control StudiesChildChild, PreschoolDiagnosis, DifferentialFemaleHumansMaleRetrospective StudiesBiomarkersAcute hypertensionAutoimmune encephalitisDysautonomiaPsychosisRefractory seizure

Identifiers

PMID40907243
PMCPMC13476789

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.