Evidence map›Paper›PMID 34235344›Full record

ArticlePain reports

C-tactile touch perception in patients with chronic pain disorders.

Gudrun Gossrau, Anna Klimova, Hanna Sophie Lapp, Marie Frost, Elisabeth Peschel, Kerstin Weidner, Thea Koch, Rainer Sabatowski, Ilona Croy

Open access · goldAbstract read
In one paragraph

Article in Pain reports. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 26% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Peripheral Gating of Nociception Investigated with a Decerebrate, Arterially Perfused Preparation of the Rat.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  7. Sensory processing in medically unexplained pain syndrome. A systematic review.Frontiers in pain research (Lausanne, Switzerland) · 2025
    Review
  8. Review
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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

9 authors at 3 institutions in 2 countries.

Gudrun GossrauPain Center, Faculty of Medicine Carl Gustav Carus, University Hospital, TU Dresden, Dresden, Germany.
Anna KlimovaNCT Partner Site Dresden, Faculty of Medicine Carl Gustav Carus, Institute for Medical Informatics and Biometrics, TU Dresden, Dresden, Germany.
Hanna Sophie LappPain Center, Faculty of Medicine Carl Gustav Carus, University Hospital, TU Dresden, Dresden, Germany.
Marie FrostPain Center, Faculty of Medicine Carl Gustav Carus, University Hospital, TU Dresden, Dresden, Germany.
Elisabeth PeschelPsychosomatic Medicine and Psychotherapy, and.
Kerstin WeidnerPsychosomatic Medicine and Psychotherapy, and.
Thea KochAnesthesiology and Intensive Care, Faculty of Medicine Carl Gustav Carus, University Hospital, TU Dresden, Dresden, Germany.
Rainer SabatowskiPain Center, Faculty of Medicine Carl Gustav Carus, University Hospital, TU Dresden, Dresden, Germany.
Ilona CroyPsychosomatic Medicine and Psychotherapy, and.
TU Dresden · DEKlinik für Psychosomatik · DEUniversity Hospital Carl Gustav Carus · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSlow brushing over the skin activates C-tactile nerve fibers that transmit pleasant tactile experiences in healthy subjects, leading to an inverted U-shaped velocity dependence of ratings: C-tactile optimal stroking stimulations are rated as more pleasant than slower or faster stimulations. Chronic pain diseases such as postherpetic neuralgia (PHN) and complex regional pain syndrome show altered C-fiber innervation density, sensory loss, and pain sensitization.

objectivesWe aimed to investigate whether C-tactile function is affected in painful conditions.

methodsWe assessed psychophysically C-tactile function and sensory perception thresholds in 16 patients with PHN, 19 patients with complex regional pain syndrome, and 22 healthy controls.

resultsAssessment of C-tactile function showed a significantly altered perceived pleasantness of CT stimulation between healthy controls and patients with chronic pain. In specific, tactile stimulation was perceived less pleasant on the affected and contralateral side when compared with controls. In patients with PHN, velocity-dependent pleasantness ratings could not be obtained, suggesting highly impaired C-tactile function with functional loss of pleasant touch perception.

conclusionsIn conclusion, this is the first report of impaired C-tactile function in patients with PHN. Reduced pleasantness resulting from gentle touch can reflect defective C-fiber function or result from central nervous system effects in a chronic pain state.

Indexed as

C-tactile fibersNeuropathic painPleasant touchPostherpetic neuralgia

Identifiers

PMID34235344
PMCPMC8253581
OpenAlexW3180768845

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.