Evidence map›Paper›PMID 19996955›Full record

ArticleAnesthesiology2010

Guarding pain and spontaneous activity of nociceptors after skin versus skin plus deep tissue incision.

Jun Xu, Timothy J Brennan

Open access · bronzeAbstract read
In one paragraph

Article in Anesthesiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

76 citing papers in PubMed, 143 citations in OpenAlex.

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  10. A Female-Specific Role for Calcitonin Gene-Related Peptide (CGRP) in Rodent Pain Models.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
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  16. Inhibiting endocytosis in CGRPNature communications · 2021
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16 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

2 authors at 1 institution in 1 country.

Jun XuDepartment of Pharmacology, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242, USA.
Timothy J Brennan
University of Iowa Hospitals and Clinics · US

Funding

Primary Afferent Sensitization in Postoperative PainR01GM067762 · NIGMS · UNIVERSITY OF IOWA · PI BRENNAN, TIMOTHY JOHN · 2003 to 2012
$2.5M
TRPV1 Expressing Sensory Afferents in Postoperative PainR01GM055831 · NIGMS · UNIVERSITY OF IOWA · PI BRENNAN, TIMOTHY JOHN · 2002 to 2009
$2.4M
MECHANISMS OF POSTOPERATIVE PAINR29GM055831 · NIGMS · UNIVERSITY OF IOWA · PI BRENNAN, TIMOTHY JOHN · 1997 to 2001
$186k
NIGMS NIH HHS GM-5583NIGMS NIH HHS R01 GM055831NIGMS NIH HHS R01 GM067762NIGMS NIH HHS R29 GM055831
6 · The paper itself

Abstract

backgroundGuarding pain after rat plantar incision is similar to pain at rest in postoperative patients. Spontaneous activity (SA) in nociceptive pathways quite likely transmits such ongoing pain. This study examined the extent of tissue injury by incision on pain behaviors and nociceptor SA.

methodsRat pain behaviors were measured after a sham procedure, skin incision, or skin plus deep tissue incision. Separate groups of rats underwent in vivo single-fiber recording 1 day after a sham procedure, skin, or skin plus deep tissue incision or 7 days after skin plus deep tissue incision.

resultsCompared with the control procedure, skin incision induced moderate guarding on the day of incision only, whereas skin plus deep tissue incision caused guarding for 5 days. Mechanical and heat hyperalgesia were similar in both incised groups, except that mechanical hyperalgesia lasted longer after skin plus deep tissue incision. On Postoperative Day 1, skin incision (18.2%) produced a similar prevalence of SA in nociceptors as in controls (13.0%), whereas skin plus deep tissue incision generated a greater prevalence of SA (61.0%); SA rate also tended to be greater (6.1 vs. 10.0 imp/s) after skin plus deep tissue incision. Seven days after skin plus deep tissue incision, the SA prevalence was similar (13.6%) as in controls.

conclusionsThese data demonstrated that incised deep tissue rather than skin had a central role in the genesis of guarding behavior and nociceptor SA. Understanding the responses of deep tissue to incision and the mechanisms for deep tissue pain will improve postoperative pain management.

Indexed as

Dermatologic Surgical ProceduresAnimalsBehavior, AnimalElectrophysiologyHot TemperatureHyperalgesiaMaleMechanoreceptorsNerve FibersNeural ConductionNeurons, AfferentNociceptorsPainPain MeasurementPain ThresholdPhysical Stimulation

Identifiers

PMID19996955
PMCPMC2907154
OpenAlexW2077239893

What OpenQuestion holds

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LicenceTDM
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.