Evidence map›Paper›PMID 35526856›Full record

ArticleJournal of cerebrovascular and endovascular neurosurgery2022

Comparison of transarterial n-BCA and Onyx embolization of brain arteriovenous malformations: A single-center 18-year retrospective analysis.

Faraz Behzadi, Daniel M Heiferman, Amy Wozniak, Benjamin Africk, Matthew Ballard, Joshua Chazaro, Brandon Zsigray, Matthew Reynolds, Douglas E Anderson, Joseph C Serrone

Open access · diamondAbstract read
In one paragraph

Article in Journal of cerebrovascular and endovascular neurosurgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 18% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. N-butyl Cyanoacrylate Use in Various Neuroendovascular Diseases.Journal of neuroendovascular therapy · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Review
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 4 institutions in 1 country.

Faraz BehzadiStritch School of Medicine, Loyola University Chicago, Maywood, IL, USA.
Daniel M HeifermanSemmes-Murphey Clinic, Memphis, TN, USA.
Amy WozniakClinical Research Office, Stritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.
Benjamin AfrickDepartment of Pediatric Neurology, Stanford University School of Medicine, Palo Alto, CA, USA.
Matthew BallardStritch School of Medicine, Loyola University Chicago, Maywood, IL, USA.
Joshua ChazaroStritch School of Medicine, Loyola University Chicago, Maywood, IL, USA.
Brandon ZsigrayDepartment of Neurological Surgery, Stritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.
Matthew ReynoldsDepartment of Neurological Surgery, Stritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.
Douglas E AndersonDepartment of Neurological Surgery, Stritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.
Joseph C SerroneDepartment of Neurological Surgery, Stritch School of Medicine, Loyola University Medical Center, Maywood, IL, USA.
Loyola University Medical Center · USLoyola University Chicago · USSemmes Murphey Foundation · USStanford University · US

Funding

Basic and Clinical Research Training for Medical StudentsT35HL120835 · NHLBI · LOYOLA UNIVERSITY CHICAGO · PI ZELEZNIK-LE, NANCY J · 2015 to 2024
$628k
NHLBI NIH HHS T35 HL120835
6 · The paper itself

Abstract

objectiveBrain arteriovenous malformations (AVM) are commonly treated with endovascular embolization. Due to the rapid evolution of endovascular technology and lack of consistent practice guidelines regarding AVM embolization, further study of AVM embolization outcomes is warranted.

methodsWe conducted a retrospective review of AVMs embolized at a single center from 2002-2019. Patient demographics, AVM characteristics, intention of embolization, and angiographic and clinical outcome after embolization were recorded. We compared the embolization results of those treated with n-butyl cyanoacrylate (n-BCA) and Onyx.

resultsOver an 18-year period at our institution, 30 (33%) of 92 AVMs were treated with embolization. n-BCA was used in 12 cases and Onyx in 18 cases. Eighty-seven pedicles were embolized over 47 embolization sessions. Fifty percent of AVMs treated with n-BCA underwent more than one embolization session compared to 22% when Onyx was used. The median total percent volume reduction in the n-BCA AVMs was 52% compared to 51% in Onyx AVMs. There were 2 periprocedural complications in the n-BCA cohort and none in the Onyx cohort.

conclusionsIn this small retrospective series, Onyx and n-BCA achieved similar occlusion results, although n-BCA required more sessions and pedicles embolized to do so.

Indexed as

Arteriovenous malformationEmbolizationEthylene vinyl alcohol copolymern-butyl cyanacrylate (n-BCA)Onyx

Identifiers

PMID35526856
PMCPMC9260459
OpenAlexW4229378488

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.