Evidence map›Paper›PMID 28091815›Full record

ArticleHernia : the journal of hernias and abdominal wall surgery2017

Quantitative validation of sensory mapping in persistent postherniorrhaphy inguinal pain patients undergoing triple neurectomy.

M F Bjurström, R Álvarez, A L Nicol, R Olmstead, P K Amid, D C Chen

Abstract readValidation Study
PubMed Publisher
In one paragraph

Article in Hernia : the journal of hernias and abdominal wall surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 15% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 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

6 authors at 4 institutions in 2 countries.

M F BjurströmDepartment of Anesthesiology, University of California, Los Angeles (UCLA), Los Angeles, CA, USA. mfbjurstrom@ucla.edu.
R ÁlvarezDepartment of Abdominal Wall Surgery, Proben Hernia Clinic, Universidad de Monterrey (UDEM), Guadalajara, Mexico.
A L NicolDepartment of Anesthesiology, University of Kansas, Kansas City, KS, USA.
R OlmsteadCousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles (UCLA), 300 UCLA Medical Plaza, Suite 3132, Los Angeles, CA, 90095-7076, USA.
P K AmidDepartment of Surgery, Lichtenstein Amid Hernia Clinic at UCLA, Los Angeles, CA, USA.
D C ChenDepartment of Surgery, Lichtenstein Amid Hernia Clinic at UCLA, Los Angeles, CA, USA.
Hernia Center · USUniversity of California, Los Angeles · USUniversity of Kansas · USUniversity of Monterrey · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeNeurectomy of the inguinal nerves may be considered for selected refractory cases of chronic postherniorrhaphy inguinal pain (CPIP). There is to date a paucity of easily applicable clinical tools to identify neuropathic pain and examine the neurosensory effects of remedial surgery. The present quantitative sensory testing (QST) pilot study evaluates a sensory mapping technique.

methodsLongitudinal (preoperative, immediate postoperative, and late postoperative) dermatomal sensory mapping and a comprehensive QST protocol were conducted in CPIP patients with unilateral, predominantly neuropathic inguinodynia presenting for triple neurectomy (n = 13). QST was conducted in four areas on the affected, painful side and in one contralateral comparison site. QST variables were compared according to sensory mapping outcomes: (o)/normal sensation, (+)/pain, and (-)/numbness. Diagnostic ability of the sensory mapping outcomes to detect QST-assessed allodynia or hypoesthesia was estimated through calculation of specificity and sensitivity values.

resultsPreoperatively, patients exhibited mechanical hypoesthesia and allodynia and pressure allodynia and hyperalgesia in painful areas mapped (+) (p < .05); sensory mapping outcome (+) demonstrated high ability to detect mechanical allodynia [sensitivity 0.74 (95% CI 0.61-0.86), specificity 0.94 (0.84-1.00)] and pressure allodynia [sensitivity 0.96 (0.89-1.00), specificity 1.00 (1.00-1.00)], but not thermal allodynia. Postoperatively, mapped areas of numbness (-) were associated with mechanical and thermal hypoesthesia (p < .05); (-) showed high sensitivity and specificity to detect mechanical and cold hypoesthesia.

conclusionsSensory mapping provides an accurate clinical neuropathic assessment with strong correlation to QST findings of preoperative mechanical and pressure allodynia, and postoperative mechanical and thermal hypoesthesia in CPIP patients undergoing neurectomy.

Indexed as

Diagnostic Techniques, NeurologicalAdultAgedChronic PainDenervationFemaleGroinHernia, InguinalHerniorrhaphyHumansLongitudinal StudiesMaleMiddle AgedNeuralgiaPain MeasurementPain ThresholdChronic postherniorrhaphy inguinal painNeurectomyQuantitative sensory testingSensory dermatome mapping

Identifiers

PMID28091815
OpenAlexW2573574710

What OpenQuestion holds

Textmetadata
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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.