Evidence map›Paper›PMID 33663369›Full record

ArticleThe journal of headache and pain2021

Selective denervation of the corrugator supercilii muscle for the treatment of idiopatic trigeminal neuralgia purely paroxysmal distributed in the supraorbital and suprathrochlear dermatomes.

Alessandro Gualdi, Janos Cambiaso-Daniel, Jonatann Gatti, Ziv M Peled, Robert Hagan, Dario Bertossi, Paul Wurzer, Lars-Peter Kamolz, Saja Scherer, Giorgio Pietramaggiori

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 39% 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

4 citing papers in PubMed, 4 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Frontal site surgery for chronic migraine therapy.Acta bio-medica : Atenei Parmensis · 2023
    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

10 authors at 5 institutions in 3 countries.

Alessandro Gualdi *University Vita-Salute San Raffaele, Milan, Italy.
Janos Cambiaso-Daniel *Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria.
Jonatann GattiSurgical Medical Group, Milan, Italy.
Ziv M PeledPeled Plastic Surgery, San Francisco, California, USA.
Robert HaganNeuropax Clinic, St. Louis, MO, USA.
Dario BertossiMaxillo Facial, Plastic Surgery Unit, Department of Surgery, Policlinico G.B. Rossi, University of Verona, Verona, Italy.
Paul WurzerDivision of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria.
Lars-Peter KamolzDivision of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Graz, Austria.
Saja SchererGlobal Medical Institute and Swiss Nerve Center, Lausanne, Switzerland.
Giorgio PietramaggioriGlobal Medical Institute and Swiss Nerve Center, Lausanne, Switzerland. dr.pietramaggiori@global.surgery.
Medical University of Graz · ATMedica (Italy) · ITSt. Louis Medical Clinic · USUniversity of Padua · ITUniversity of Verona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIdiopatic trigeminal neuralgia purely paroxysmal (ITNp) distributed in the supraorbital and suprathrochlear dermatomes (SSd), refractory to conventional treatments have been linked to the hyperactivity of the corrugator supercilii muscle (CSM). In these patients, the inactivation of the CSM via botulinum toxin type A (BTA) injections has been proven to be safe and effective in reducing migraine burden. The main limitation of BTA is the need of repetitive injections and relative high costs. Based on the study of the motor innervation of the CSM, we describe here an alternative approach to improve these type of migraines, based on a minimally invasive denervation of the CSM. MATERIALS AND

methodsMotor innervation and feasibility of selective CSM denervation was first studied on fresh frozen cadavers. Once the technique was safely established, 15 patients were enrolled. To be considered eligible, patients had to meet the following criteria: positive response to BTA treatment, migraine disability assessment score > 24, > 15 migraine days/month, no occipital/temporal trigger points and plausible reasons to discontinue BTA treatment. Pre- and post- operative migraine headache index (MHI) were compared, and complications were classified following the Clavien-Dindo classification (CDC).

resultsFifteen patients (9 females and 6 males) underwent the described surgical procedure. The mean age was 41 ± 10 years. Migraine headache episodes decreased from 24 ± 4 day/month to 2 ± 2 (p < 0.001) The MHI decreased from 208 ± 35 to 10 ± 11 (p < 0.001). One patient (7%) had a grade I complication according to the CDC. No patient needed a second operative procedure.

conclusionsOur findings suggest that the selective CSM denervation represents a safe and minimally invasive approach to improve ITNp distributed in the SSd associated with CSM hyperactivation.

trial registrationThe data collection was conducted as a retrospective quality assessment study and all procedures were performed in accordance with the ethical standards of the national research committee and the 1964 Helsinki Declaration and its later amendments.

Indexed as

Botulinum Toxins, Type ATrigeminal NeuralgiaAdultDenervationFacial MusclesFemaleHumansMaleMiddle AgedRetrospective StudiesTreatment OutcomeBotulinum Toxins, Type ABotulinum toxin type aHeadache disordersMigraine disordersNeuralgiaQuality of life

Identifiers

PMID33663369
PMCPMC7931360
OpenAlexW3134938926

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.