Evidence map›Paper›PMID 37914821›Full record

Trial reportPediatric research2024

Seizures after initiation of rewarming in cooled infants with hypoxic ischaemic encephalopathy.

Malcolm R Battin, Suzanne L Davis, Marisa Gardner, Priscilla Joe, Maynard Rasmussen, Richard Haas, Cynthia Sharpe

Abstract readRandomized Controlled TrialMulticenter Study
PubMed Publisher
In one paragraph

Trial report in Pediatric research, 2024. 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
1.7field-weighted citation impact, top 13% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Article
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

7 authors at 5 institutions in 2 countries.

Malcolm R BattinNewborn Service, Auckland City Hospital, Auckland, New Zealand. malcolmb@adhb.govt.nz.ORCID 0000-0001-9622-0523
Suzanne L DavisPaediatric Neurology, Starship Hospital, Auckland, New Zealand.
Marisa GardnerPediatric Neurology, UCSF Benioff Children's Hospital, Oakland, CA, USA.
Priscilla JoeNeonatology, UCSF Benioff Children's Hospital, Oakland, CA, USA.
Maynard RasmussenNeonatology, Sharp Mary Birch Hospital for Women and Newborns, San Diego, CA, USA.
Richard HaasDepartment of Neurosciences and Pediatrics, University of California, San Diego, CA, USA.
Cynthia SharpePaediatric Neurology, Starship Hospital, Auckland, New Zealand.
Starship Children's Health · NZUCSF Benioff Children's Hospital · USAuckland City Hospital · NZSharp Mary Birch Hospital for Women & Newborns · USUniversity of California San Diego · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeizures after initiation of rewarming from therapeutic hypothermia for neonatal encephalopathy are well recognised but not easy to predict.

methodsA secondary analysis was performed of NEOLEV2 trial data, a multicentre randomised trial of levetiracetam versus phenobarbital for neonatal seizures. Enrolled infants underwent continuous video EEG (cEEG) monitoring. The trial data were reviewed for 42 infants with seizures during therapeutic hypothermia and 118 infants who received therapeutic hypothermia but had no seizures on cEEG.

resultsOverall, 112 of 160 (70%) had cEEG monitoring continued until rewarming was completed. Of the 42 infants with prior seizures, there were 30 infants with valid cEEG available and seizures occurred following the initiation of rewarming in 8 (26.6%). For the 118 seizure-naive infants, 82 (69.5%) continued cEEG until either rewarming was completed or 90 h of age and none had documented seizures.

conclusionOverall, just over a quarter of infants with prior seizures had cEEG evidence of at least one seizure in the 24 h after initiation of rewarming but no seizure-naive infant had cEEG evidence of seizure(s) on rewarming. Critically, by reporting the two groups separately, the data can provide guidance on the duration of EEG monitoring. IMPACT: Infants with hypoxic ischaemic encephalopathy who have cEEG evidence of seizures during therapeutic hypothermia have a significant risk of further seizures on rewarming. For infants with hypoxic ischaemic encephalopathy but no cEEG evidence of seizures during therapeutic hypothermia, there is very little risk of de novo seizures. Ongoing work utilising large cohorts may generate EEG criteria that refine estimates of risk for rewarming seizures. Based on current experience, if seizures have occurred during therapeutic hypothermia for hypoxic ischaemic encephalopathy, the EEG monitoring should be continued during rewarming and for 12 h thereafter to minimise the risk of missing an event.

Indexed as

Hypothermia, InducedHypoxia-Ischemia, BrainElectroencephalographyHumansInfant, NewbornRewarmingSeizures

Identifiers

PMID37914821
OpenAlexW4388125790

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.