Evidence map›Paper›PMID 30295870›Full record

ArticleNeurosurgery2019

The NASSAU (New ASSessment of cerebral Arteriovenous Malformations yet Unruptured) Analysis: Are the Results From The ARUBA Trial Also Applicable to Unruptured Arteriovenous Malformations Deemed Suitable for Gamma Knife Surgery?

Bengt Karlsson, Hidefumi Jokura, Huai-Che Yang, Masaaki Yamamoto, Roberto Martinez, Jun Kawagishi, Wan-Yuo Guo, Guus Beute, David H C Pan, Hitoshi Aiyama and 3 more

Abstract read
PubMed Publisher
In one paragraph

Article in Neurosurgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.5field-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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Obliteration Rate of Arteriovenous Malformation by Radiosurgery.The Malaysian journal of medical sciences : MJMS · 2025
    Article
  4. Observational
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. The 20th Gray lecture 2019: health and heavy ions.The British journal of radiology · 2020
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 5 countries.

Bengt KarlssonDepartment of Surgery, Division of Neurosurgery, National University Hospital, Singapore, Singapore.
Hidefumi JokuraJiro Suzuki Memorial Gamma House, Furukawa Seiryo Hospital, Furukawa, Japan.
Huai-Che YangDepartment of Neurosurgery, Veterans General Hospital, Taipei, Taiwan.
Masaaki YamamotoKatsuta Hospital Mito GammaHouse, Ibaraki, Japan.
Roberto MartinezRuber International Hospital, Madrid, Spain.
Jun KawagishiJiro Suzuki Memorial Gamma House, Furukawa Seiryo Hospital, Furukawa, Japan.
Wan-Yuo GuoDepartment of Neurosurgery, Veterans General Hospital, Taipei, Taiwan.
Guus BeuteSt Elizabeth Ziekenhuis, Tilburg, the Netherlands.
David H C PanDepartment of Neurosurgery, Veterans General Hospital, Taipei, Taiwan.
Hitoshi AiyamaKatsuta Hospital Mito GammaHouse, Ibaraki, Japan.
Wen-Yuh ChungDepartment of Neurosurgery, Veterans General Hospital, Taipei, Taiwan.
Michael SödermanDepartment of Neuroradiology, Karolinska Hospital, Stockholm, Sweden.
Tseng Tsai YeoDepartment of Surgery, Division of Neurosurgery, National University Hospital, Singapore, Singapore.
National University Hospital · SGTaipei Veterans General Hospital · TWHospital Ruber Internacional · ESSuzuki (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe optimal management of unruptured brain arteriovenous malformations (AVMs) is controversial after the ARUBA trial.

objectiveTo confirm or repudiate the ARUBA conclusion that "medical management only is superior to medical management with interventional therapy for unruptured brain arteriovenous malformations."

methodsData were collected from 1351 patients treated with Gamma Knife Surgery (GKS; Elekta AB, Stockholm, Sweden) for unruptured and untreated AVMs The follow-up was 8817 yr (median 5.0 and mean 6.5). The results of the analyses were compared to that found in patients randomized to medical management only in the ARUBA trial and extrapolated to a 10-yr time period. Our data were also compared to the natural course in a virtual AVM population for a 25-yr time period.

resultsThe incidence of stroke was similar among ARUBA and our patients for the first 5 yr. Thereafter, the longer the follow-up, the relatively better outcome following treatment. Both the mortality rate and the incidence of permanent deficits in patients with small AVMs were the same as in untreated patients for the first 2 to 3 yr after GKS, after which GKS patients did better. Patients with large AVMs had a higher incidence of neurological deficits in the first 3 yr following GKS. The difference decreased thereafter, but the time until break even depended on the analysis method used and the assumed risk for hemorrhage in patent AVMs.

conclusionThe ARUBA trial conclusion that medical management is superior to medical management with interventional therapy for all unruptured AVMs could be repudiated.

Indexed as

AdolescentAdultAgedAged, 80 and overArteriovenous FistulaChildFemaleFollow-Up StudiesHumansIncidenceIntracranial Arteriovenous MalformationsMaleMiddle AgedRadiosurgeryStrokeSwedenGamma Knife SurgeryNatural courseUnruptured brain AVM

Identifiers

PMID30295870
OpenAlexW2897834488

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.