Evidence map›Paper›PMID 29935586›Full record

ArticleBritish journal of anaesthesia2018

Opioid analgesia and the somatosensory memory of neonatal surgical injury in the adult rat.

O Moriarty, L Harrington, S Beggs, S M Walker

Open access · hybridAbstract read
In one paragraph

Article in British journal of anaesthesia, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
7.3field-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

19 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Early Life Injury Alters Spinal Astrocyte Development.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
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  10. Developmental mechanisms of CPSP: Clinical observations and translational laboratory evaluations.Canadian journal of pain = Revue canadienne de la douleur · 2022
    Review
  11. Article
  12. Early Life Nociception is Influenced by Peripheral Growth Hormone Signaling.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  13. Article
  14. Neonatal Injury Evokes Persistent Deficits in Dynorphin Inhibitory Circuits within the Adult Mouse Superficial Dorsal Horn.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  15. The development of pain circuits and unique effects of neonatal injury.Journal of neural transmission (Vienna, Austria : 1996) · 2020
    Review
  16. Review
  17. 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

4 authors at 2 institutions in 1 country.

O MoriartyDevelopmental Neurosciences Programme (Pain Research), UCL Great Ormond Street Institute of Child Health, London, UK.
L HarringtonNeuroscience, Physiology and Pharmacology, University College London, London, UK.
S BeggsDevelopmental Neurosciences Programme (Pain Research), UCL Great Ormond Street Institute of Child Health, London, UK; Neuroscience, Physiology and Pharmacology, University College London, London, UK.
S M WalkerDevelopmental Neurosciences Programme (Pain Research), UCL Great Ormond Street Institute of Child Health, London, UK; Department of Anaesthesia and Pain Medicine, Great Ormond Street Hospital NHS Foundation Trust, London, UK. Electronic address: suellen.walker@ucl.ac.uk.
Great Ormond Street Hospital · GBUniversity College London · GB

Funding

Medical Research Council MR/K022636/1
6 · The paper itself

Abstract

backgroundNociceptive input during early development can produce somatosensory memory that influences future pain response. Hind-paw incision during the 1st postnatal week in the rat enhances re-incision hyperalgesia in adulthood. We now evaluate its modulation by neonatal analgesia.

methodsNeonatal rats [Postnatal Day 3 (P3)] received saline, intrathecal morphine 0.1 mg kg-1 (IT), subcutaneous morphine 1 mg kg

resultsAdult re-incision hyperalgesia was not prevented by neonatal peri-incision morphine (saline, IT, and SC groups > IN; P<0.05-0.01). Neonatal sciatic block, but not morphine, prevented the enhanced re-incision reflex sensitivity in adulthood (LA < saline and morphine groups, P<0.01; LA vs IN, not significant). Morphine efficacy in adulthood was altered after morphine alone in the neonatal period, but not when administered with neonatal incision. Morphine prevented the acute incision-induced hyperalgesia in neonatal rats, but only sciatic block had a preventive analgesic effect at 24 h.

conclusionsLong-term effects after neonatal injury highlight the need for preventive strategies. Despite effective analgesia at the time of neonatal incision, morphine as a sole analgesic did not alter the somatosensory memory of early-life surgical injury.

Indexed as

AnalgesiaAgingAnalgesics, OpioidAnesthetics, LocalAnimalsAnimals, NewbornConditioning, OperantEvoked Potentials, SomatosensoryHyperalgesiaInjections, SpinalInjections, SubcutaneousIntraoperative ComplicationsLevobupivacaineMaleMemoryMorphineAnalgesics, OpioidAnesthetics, LocalLevobupivacaineMorphineanalgesicsanimalsnewbornopioidpainsurgical incision

Identifiers

PMID29935586
PMCPMC6200106
OpenAlexW2789876491

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.