Evidence map›Paper›PMID 25812123›Full record

ArticlePediatric research2015

Phenobarbital and neonatal seizures affect cerebral oxygen metabolism: a near-infrared spectroscopy study.

Max D Sokoloff, Melissa A Plegue, Ronald D Chervin, John D E Barks, Renée A Shellhaas

Open access · bronzeAbstract read
In one paragraph

Article in Pediatric research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 9% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Max D SokoloffCollege of Literature, Science, and the Arts, University of Michigan, Ann Arbor, Michigan.
Melissa A PlegueCenter for Statistical Consultation and Research, University of Michigan, Ann Arbor, Michigan.
Ronald D ChervinDepartment of Neurology, University of Michigan, Ann Arbor, Michigan.
John D E BarksDepartment of Pediatrics & Communicable Diseases, University of Michigan, Ann Arbor, Michigan.ORCID 000000031320905X
Renée A ShellhaasDepartment of Pediatrics & Communicable Diseases, University of Michigan, Ann Arbor, Michigan.
University of Michigan · US

Funding

Cerebral metabolism, EEG, and sleep cycling in critically ill neonatesK23HD068402 · NICHD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SHELLHAAS, RENEE A. · 2011 to 2014
$534k
NICHD NIH HHS 5K23HD068402NICHD NIH HHS K23 HD068402
6 · The paper itself

Abstract

backgroundNear-infrared spectroscopy (NIRS) measures oxygen metabolism and is increasingly used for monitoring critically ill neonates. The implications of NIRS-recorded data in this population are poorly understood. We evaluated NIRS monitoring for neonates with seizures.

methodsIn neonates monitored with video-electroencephalography, NIRS-measured cerebral regional oxygen saturation (rSO2) and systemic O2 saturation were recorded every 5 s. Mean rSO2 was extracted for 1-h blocks before, during, and after phenobarbital doses. For each electrographic seizure, mean rSO2 was extracted for a period of three times the duration of the seizure before and after the ictal pattern, as well as during the seizure. Linear mixed models were developed to assess the impact of phenobarbital administration and of seizures on rSO2 and fractional tissue oxygen extraction.

resultsFor 20 neonates (estimated gestational age: 39.6 ± 1.5 wk), 61 phenobarbital doses and 40 seizures were analyzed. Cerebral rSO2 rose (P = 0.005), and fractional tissue oxygen extraction declined (P = 0.018) with increasing phenobarbital doses. rSO2 declined during seizures, compared with baseline and postictal phases (baseline 81.2 vs. ictal 77.7 vs. postictal 79.4; P = 0.004). Fractional tissue oxygen extraction was highest during seizures (P = 0.002).

conclusionsCerebral oxygen metabolism decreases after phenobarbital administration and increases during seizures. These small, but clear, changes in cerebral oxygen metabolism merit assessment for potential clinical impact.

Indexed as

AnticonvulsantsBrainElectroencephalographyFemaleHumansInfant, NewbornInfant, Newborn, DiseasesLinear ModelsMaleMonitoring, PhysiologicOximetryOxygenPhenobarbitalSeizuresSpectroscopy, Near-InfraredAnticonvulsantsOxygenPhenobarbital

Identifiers

PMID25812123
PMCPMC4472490
OpenAlexW2008303380

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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.