Evidence map›Paper›PMID 32784232›Full record

ArticleRegional anesthesia and pain medicine2020

Physiological and functional responses of water-cooled versus traditional radiofrequency ablation of peripheral nerves in rats.

Christa Zachariah, Jacques Mayeux, Guillermo Alas, Sherry Adesina, Olivia Christine Mistretta, Patricia Jill Ward, Antonia Chen, Arthur William English, Alencia V Washington

Open access · hybridAbstract read
In one paragraph

Article in Regional anesthesia and pain medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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 1 country.

Christa ZachariahResearch and Development, Avanos Medical Inc, Alpharetta, Georgia, USA christacaesar@gmail.com.
Jacques MayeuxResearch and Development, Avanos Medical Inc, Alpharetta, Georgia, USA.
Guillermo AlasResearch and Development, Avanos Medical Inc, Alpharetta, Georgia, USA.
Sherry AdesinaResearch and Development, Avanos Medical Inc, Alpharetta, Georgia, USA.
Olivia Christine MistrettaDepartment of Cell Biology, Emory University, Atlanta, Georgia, USA.
Patricia Jill WardDepartment of Cell Biology, Emory University, Atlanta, Georgia, USA.
Antonia ChenDepartment of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA.
Arthur William EnglishDepartment of Cell Biology, Emory University, Atlanta, Georgia, USA.
Alencia V WashingtonResearch and Development, Avanos Medical Inc, Alpharetta, Georgia, USA.
Avanos Medical (United States) · USEmory University · USBrigham and Women's Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesSeveral clinical studies have focused on assessing the effectiveness of different radiofrequency ablation (RFA) modalities in pain management. While a direct head-to-head clinical study is needed, results from independent studies suggest that water-cooled RFA (CRFA) may result in longer lasting pain relief than traditional RFA (TRFA). The primary purpose of this study was, therefore, to investigate in a preclinical model, head-to-head differences between the two RFA technologies.

methodsRFA was performed in a rat sciatic nerve model (n=66) in two groups: (1) TRFA or (2) CRFA. The surgeon was not blinded to the treatment; however, all the physiological endpoints were assessed in a blinded fashion which include histological, MRI, and nerve function assessment via electromyography.

resultsThe energy delivered by the generator for CRFA was significantly higher compared with TRFA. Histological staining of nerves harvested immediately following CRFA exhibited extended length and multiple zones of thermal damage compared with TRFA-treated nerves. MRI scans across 4 weeks following treatment showed edematous/inflammatory zones present for longer times following CRFA. Finally, there was greater attenuation and prolonged loss of nerve function measured via electromyography in the CRFA group.

conclusionsThis study shows that CRFA has greater energy output, as well as more pronounced structural and functional changes elicited on the peripheral nerves compared with TRFA. While these preclinical data will need to be confirmed with a large clinical randomized controlled trial, we are encouraged by the direction that they may have set for those trials.

Indexed as

Catheter AblationChronic PainRadiofrequency AblationAnimalsPeripheral NervesRatsTreatment OutcomeWaterWateranimal studieschronic paininterventional pain managementradiofrequency ablation

Identifiers

PMID32784232
PMCPMC7513268
OpenAlexW3048586091

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.