Evidence map›Paper›PMID 37460709›Full record

ArticlePediatric research2023

The association of placental pathology and neurodevelopmental outcomes in patients with neonatal encephalopathy.

Alexa C Stone, Kyle C Strickland, David T Tanaka, Jennifer B Gilner, Monica E Lemmon, Jeffrey B Russ

Abstract read
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Article in Pediatric research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
8.1field-weighted citation impact, top 2% of its field
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

10 citing papers in PubMed, 14 citations in OpenAlex.

  1. Trial
  2. Maternal-placental timing profiles of hypoxic-ischemic insult and association with prognosis in neonatal encephalopathy.Journal of perinatology : official journal of the California Perinatal Association · 2026
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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

6 authors at 3 institutions in 1 country.

Alexa C StonePediatric Neurology Residency Program, Duke University Medical Center, Durham, NC, USA.
Kyle C StricklandDepartment of Pathology, Duke University Medical Center, Durham, NC, USA.
David T TanakaDivision of Neonatology, Department of Pediatrics, Duke University Medical Center, Durham, NC, USA.
Jennifer B GilnerDivision of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, USA.
Monica E LemmonDepartment of Pediatrics and Population Health Sciences, Duke University School of Medicine, Durham, NC, USA.
Jeffrey B RussDivision of Neurology, Department of Pediatrics, Duke University Medical Center, Durham, NC, USA. jeffrey.russ@duke.edu.
Duke Medical Center · USDuke University · USDuke University Hospital · US

Funding

Child Neurologist Career Development Program (CNCDP)K12NS098482 · NINDS · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI SCHLAGGAR, BRADLEY L · 2016 to 2025
$26.2M
NINDS NIH HHS K12 NS098482
6 · The paper itself

Abstract

backgroundStudies conflict on how acute versus chronic placental pathology impacts outcomes after neonatal encephalopathy from presumed hypoxic-ischemic encephalopathy (HIE). We examine how outcomes after presumed HIE vary by placental pathology categories.

methodsWe performed retrospective chart review for neonates with presumed HIE, regardless of severity, focusing on 50 triads for whom placental specimens were available for re-review. Placentas were categorized as having only acute, any chronic, or no lesions. Primary outcomes included in-hospital morbidity/mortality and long-term neurodevelopmental symptoms. Secondary outcomes assessed neonatal MRI and EEG.

resultsDemographics did not differ between groups. Forty-seven neonates were treated with therapeutic hypothermia. Placental acuity category was not associated with primary or secondary outcomes, but clinical and/or histopathological chorioamnionitis was associated with abnormal EEG background and post-neonatal epilepsy (16.7%, n = 3 with chorioamnionitis versus 0%, n = 0 without chorioamnionitis, p = 0.04).

conclusionsWhen grouped by acute, chronic, or absent placental lesions, we observed no association with in-hospital, neurodevelopmental, MRI, or EEG outcomes. When reanalyzed by the presence of chorioamnionitis, we found that chorioamnionitis appeared to be associated with a higher risk of EEG alterations and post-neonatal epilepsy. Despite our limited sample size, our results emphasize the critical role of placental examination for neuroprognostication in presumed HIE. IMPACT: Neonatal encephalopathy presumed to result from impaired fetal cerebral oxygenation or blood flow is called hypoxic ischemic encephalopathy (HIE). Prior studies link placental pathology to various outcomes after HIE but disagree on the impact of acute versus chronic pathology. Our study determines that neurodevelopmental outcomes, in-hospital outcomes, injury on MRI, and EEG findings in patients with HIE are not differentially associated with acute versus chronic placental pathology. Chorioamnionitis is associated with an increased risk of abnormal EEG patterns and post-neonatal epilepsy. Histopathologic chorioamnionitis without clinical symptoms is common in HIE, emphasizing the crucial role of placental pathology for neuroprognostication.

Indexed as

ChorioamnionitisEpilepsyHypothermia, InducedHypoxia-Ischemia, BrainInfant, Newborn, DiseasesFemaleHumansInfant, NewbornPlacentaPregnancyRetrospective Studies

Identifiers

PMID37460709
OpenAlexW4384561882

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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.