Evidence map›Paper›PMID 32310199›Full record

ArticleRestorative neurology and neuroscience2020

Distinct neurotoxic effects of select local anesthetics on facial nerve injury and recovery.

Susanna C Byram, Samantha E Bialek, Vicki A Husak, Daniel Balcarcel, James Park, Jacquelyn Dang, Eileen M Foecking

Open access · greenAbstract read
In one paragraph

Article in Restorative neurology and neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

9 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
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  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Ropivacaine: A Novel Local Anaesthetic Drug to Use in Otorhinolaryngology Practice.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2021
    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

7 authors at 2 institutions in 1 country.

Susanna C ByramDepartment of Anesthesiology, Loyola University Medical Center, Maywood, IL, Byram - current, USA.
Samantha E BialekResearch Service, Department of Veterans Affairs, Edward Hines Jr. VA Hospital, Hines, IL, USA.
Vicki A HusakResearch Service, Department of Veterans Affairs, Edward Hines Jr. VA Hospital, Hines, IL, USA.
Daniel BalcarcelStritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.
James ParkStritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.
Jacquelyn DangStritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.
Eileen M FoeckingResearch Service, Department of Veterans Affairs, Edward Hines Jr. VA Hospital, Hines, IL, USA.
Loyola University Medical Center · USEdward Hines, Jr. VA Hospital · US

Funding

The Effects of Local Anesthetics on Peripheral Nerve Injury and RepairI21RX002228 · VA · EDWARD HINES JR VA HOSPITAL · PI BYRAM, SUSANNA · 2016 to 2018
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RRD VA I21 RX002228
6 · The paper itself

Abstract

backgroundLocal anesthetic toxicity has been well-documented to cause neuronal injury, death, and dysfunction, particularly in a susceptible nerve.

objectiveTo determine whether select local anesthetics affect neuron survival and/or functional recovery of an injured nerve.

methodsThis report describes 6 separate experiments that test immediate or delayed application of local anesthetics in 3 nerve injury models. Adult C57/black6 male mice underwent a facial nerve sham, transection, or crush injury. Local anesthetic or saline was applied to the facial nerve at the time of injury (immediate) or 1 day after injury (delayed). Average percent facial motoneuron (FMN) survival was evaluated four-weeks after injury. Facial nerve regeneration was estimated by observing functional recovery of eye blink reflex and vibrissae movement after facial nerve crush injury.

resultsFMN survival after: transection + immediate treatment with ropivacaine (54.8%), bupivacaine (63.2%), or tetracaine (66.9%) was lower than saline (85.5%) and liposomal bupivacaine (85.0%); crush + immediate treatment with bupivacaine (92.8%) was lower than saline (100.7%) and liposomal bupivacaine (99.3%); sham + delayed treatment with bupivacaine (89.9%) was lower than saline (96.6%) and lidocaine (99.5%); transection + delayed treatment with bupivacaine (67.3%) was lower than saline (78.4%) and liposomal bupivacaine (77.6%); crush + delayed treatment with bupivacaine (85.3%) was lower than saline (97.9%) and lidocaine (96.0%). The average post-operative time for mice to fully recover after: crush + immediate treatment with bupivacaine (12.83 days) was longer than saline (11.08 days) and lidocaine (10.92 days); crush + delayed treatment with bupivacaine (16.79 days) was longer than saline (12.73 days) and lidocaine (11.14 days).

conclusionsOur data demonstrate that some local anesthetics, but not all, exacerbate motoneuron death and delay functional recovery after a peripheral nerve injury. These and future results may lead to clinical strategies that decrease the risk of neural deficit following peripheral nerve blocks with local anesthetics.

Indexed as

Anesthetics, LocalAnimalsBupivacaineCell DeathCell SurvivalFacial NerveFacial Nerve InjuriesMaleMice, Inbred C57BLMotor NeuronsPeripheral Nerve InjuriesAnesthetics, LocalBupivacainefacial nerve injuryliposomal bupivacainelocal anesthetic toxicitymotoneuron survivalNeurotoxicityperipheral nerve blockperipheral nerve injuryregional anesthesia

Identifiers

PMID32310199
PMCPMC7367228
OpenAlexW3016339251

What OpenQuestion holds

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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.