Evidence map›Paper›PMID 28575197›Full record

ArticleBritish journal of anaesthesia2017

Visual recognition memory is impaired in rhesus monkeys repeatedly exposed to sevoflurane in infancy.

M C Alvarado, K L Murphy, M G Baxter

Open access · bronzeAbstract read
In one paragraph

Article in British journal of anaesthesia, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 2 pooled it
6.1field-weighted citation impact, top 3% 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

66 citing papers in PubMed, 2 syntheses or guidelines pooled it, 108 citations in OpenAlex.

  1. Pooled it
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  4. Review
  5. Animal models of delirium: a narrative review.Translational psychiatry · 2026
    Review
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6 more citing papers are in PubMed but not listed here.

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

3 authors at 3 institutions in 2 countries.

M C AlvaradoDivision of Developmental and Cognitive Neuroscience, Yerkes National Primate Research Centre, Emory University, Atlanta, GA, USA.
K L MurphyComparative Biology Centre, Newcastle University, Newcastle, UK.
M G BaxterDepartment of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Allen Institute for Brain Science · USEmory University · USNewcastle University · GB

Funding

Yerkes National Primate Research Center Role of type-I IFN in regulating COVID-19 induced inflammation and pathogenesisP51OD011132 · OD · EMORY UNIVERSITY · PI Joon Sup Lee · 2012 to 2026
$167.0M
Cognitive and socioemotional development after postnatal anesthesiaR01HD068388 · NICHD · ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI · PI ALVARADO, MARIA C, BAXTER, MARK G · 2011 to 2015
$2.0M
NICHD NIH HHS R01 HD068388NIH HHS P51 OD011132
6 · The paper itself

Abstract

backgroundExperimental studies in animals have shown that exposure to general anaesthesia in infancy can cause loss of cells in the central nervous system and long-term impairments in neurocognitive function. Some human epidemiological studies have shown increased risk of learning disability after repeated anaesthesia exposure in early childhood. Thus, we investigated in a highly translational rhesus monkey model, whether repeated exposure in infancy to the inhalation anaesthetic sevoflurane is associated with impaired visual recognition memory during the first two yr of life.

methodsRhesus monkeys of both sexes were exposed to sevoflurane inhalation anaesthesia on approximately postnatal day 7 and then again 14 and 28 days later, for four h each time. Visual recognition memory was tested using the visual paired comparison task, which measures memory by assessing preference for looking at a new image over a previously-viewed image. Monkeys were tested at 6-10 months of age, again at 12-18 months of age, and again at 24-30 months of age.

resultsNo memory impairment was detected at 6-10 months old, but significant impairment (reduced time looking at the novel image) was observed at 12-18 and 24-30 months old.

conclusionsRepeated exposure of infant rhesus monkeys to sevoflurane results in visual recognition memory impairment that emerges after the first yr of life. This is consistent with epidemiological studies that show increased risk of learning disability after repeated exposure to anaesthesia in infancy/early childhood. Moreover, these deficits may emerge at later developmental stages, even when memory performance is unaffected earlier in development.

Indexed as

Anesthetics, InhalationAnimalsAnimals, NewbornDisease Models, AnimalFemaleMacaca mulattaMaleMemoryMemory DisordersRecognition, PsychologySevofluraneVisual PerceptionAnesthetics, InhalationSevofluranecognitive disordergeneral anaesthesiamacaque, rhesusneurotoxicity syndromessevoflurane

Identifiers

PMID28575197
PMCPMC6172969
OpenAlexW2619446543

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.