Evidence map›Paper›PMID 32065836›Full record

GuidelineNeurosurgery2020

Stereotactic Radiosurgery for Spetzler-Martin Grade I and II Arteriovenous Malformations: International Society of Stereotactic Radiosurgery (ISRS) Practice Guideline.

Christopher S Graffeo, Arjun Sahgal, Antonio De Salles, Laura Fariselli, Marc Levivier, Lijun Ma, Ian Paddick, Jean Marie Regis, Jason Sheehan, John Suh and 2 more

Open access · hybridAbstract readSystematic ReviewPractice Guideline
In one paragraph

Guideline in Neurosurgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 4 pooled it
2.2field-weighted citation impact, top 9% 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, 4 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Stereotactic radiosurgery treatment of pediatric arteriovenous malformations: a PRISMA systematic review and meta-analysis.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
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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

12 authors at 11 institutions in 7 countries.

Christopher S GraffeoDepartment of Neurological Surgery, Mayo Clinic, Rochester, Minnesota.
Arjun SahgalDepartment of Radiation Oncology, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Canada.
Antonio De SallesDepartment of Neurosurgery, University of California, Los Angeles, Los Angeles, California.
Laura FariselliFondazione IRCCS Istituto Neurologico Carlo Besta Milano, Unità di Radioterapia, Milan, Italy.
Marc LevivierNeurosurgery Service and Gamma Knife Center, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland.
Lijun MaDepartment of Radiation Oncology, University of California San Francisco, San Francisco, California.
Ian PaddickNational Hospital for Neurology and Neurosurgery, London, United Kingdom.
Jean Marie RegisDepartment of Functional Neurosurgery, Timone University Hospital, Aix-Marseille University, Marseille, France.
Jason SheehanDepartment of Neurological Surgery, University of Virginia, Charlottesville, Virginia.
John SuhDepartment of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio.
Shoji YomoDivision of Radiation Oncology, Aizawa Comprehensive Cancer Center, Aizawa Hospital, Matsumoto, Japan.
Bruce E PollockDepartment of Neurological Surgery, Mayo Clinic, Rochester, Minnesota.
Mayo Clinic · USAix-Marseille Université · FRAizawa Hospital · JPCleveland Clinic · USFondazione IRCCS Istituto Neurologico Carlo Besta · ITNational Hospital for Neurology and Neurosurgery · GBNeurological Surgery · USSunnybrook Health Science Centre · CAUniversity Hospital of Lausanne · CHUniversity of California, Los Angeles · USUniversity of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNo guidelines have been published regarding stereotactic radiosurgery (SRS) in the management of Spetzler-Martin grade I and II arteriovenous malformations (AVMs).

objectiveTo establish SRS practice guidelines for grade I-II AVMs on the basis of a systematic literature review.

methodsPreferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-compliant search of Medline, Embase, and Scopus, 1986-2018, for publications reporting post-SRS outcomes in ≥10 grade I-II AVMs with a follow-up of ≥24 mo. Primary endpoints were obliteration and hemorrhage; secondary outcomes included Spetzler-Martin parameters, dosimetric variables, and "excellent" outcomes (defined as total obliteration without new post-SRS deficit).

resultsOf 447 abstracts screened, 8 were included (n = 1, level 2 evidence; n = 7, level 4 evidence), representing 1102 AVMs, of which 836 (76%) were grade II. Obliteration was achieved in 884 (80%) at a median of 37 mo; 66 hemorrhages (6%) occurred during a median follow-up of 68 mo. Total obliteration without hemorrhage was achieved in 78%. Of 836 grade II AVMs, Spetzler-Martin parameters were reported in 680: 377 were eloquent brain and 178 had deep venous drainage, totaling 555/680 (82%) high-risk SRS-treated grade II AVMs.

conclusionThe literature regarding SRS for grade I-II AVM is low quality, limiting interpretation. Cautiously, we observed that SRS appears to be a safe, effective treatment for grade I-II AVM and may be considered a front-line treatment, particularly for lesions in deep or eloquent locations. Preceding publications may be influenced by selection bias, with favorable AVMs undergoing resection, whereas those at increased risk of complications and nonobliteration are disproportionately referred for SRS.

Indexed as

AdolescentAdultArteriovenous FistulaFemaleHumansIntracranial Arteriovenous MalformationsMaleMiddle AgedRadiosurgerySocieties, MedicalArteriovenous malformationGuidelinesSelection biasSpetzler-Martin gradeStereotactic radiosurgery

Identifiers

PMID32065836
PMCPMC7426190
OpenAlexW3006842210

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.