Evidence map›Paper›PMID 33184073›Full record

ArticleAJNR. American journal of neuroradiology2021

Neck Location on the Outer Convexity is a Predictor of Incomplete Occlusion in Treatment with the Pipeline Embolization Device: Clinical and Angiographic Outcomes.

T Sunohara, H Imamura, M Goto, R Fukumitsu, S Matsumoto, N Fukui, Y Oomura, T Akiyama, T Fukuda, K Go and 6 more

Abstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Treatment outcomes and effectiveness of FRED for fusiform vertebral artery aneurysms.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 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

16 authors.

T SunoharaFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan. tadashi_sunohara@kcho.jp.ORCID 0000-0002-0508-5571
H ImamuraFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0001-8923-7861
M GotoFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0003-2378-0364
R FukumitsuFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0003-4474-6579
S MatsumotoFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-8337-8695
N FukuiFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0003-1044-1419
Y OomuraFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-6935-5366
T AkiyamaFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-5104-5829
T FukudaFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-3030-1424
K GoFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-6171-2170
S KajiuraFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0003-2086-6461
M ShigeyasuFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0001-9748-4512
K AsakuraFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-7986-8747
R HoriiFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-5588-3862
C SakaiFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-4957-9450
N SakaiFrom the Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.ORCID 0000-0002-3289-1210

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeWith the increasing use of the Pipeline Embolization Device for the treatment of aneurysms, predictors of clinical and angiographic outcomes are needed. This study aimed to identify predictors of incomplete occlusion at last angiographic follow-up. MATERIALS AND

methodsIn our retrospective, single-center cohort study, 105 ICA aneurysms in 89 subjects were treated with Pipeline Embolization Devices. Patients were followed per standardized protocol. Clinical and angiographic outcomes were analyzed. We introduced a new morphologic classification based on the included angle of the parent artery against the neck location: outer convexity type (included angle,  <160°), inner convexity type (included angle,  >200°), and lateral wall type (160° ≤ included angle  ≤200°). This classification reflects the metal coverage rate and flow dynamics.

resultsImaging data were acquired in 95.3% of aneurysms persistent at 6 months. Complete occlusion was achieved in 70.5%, and incomplete occlusion, in 29.5% at last follow-up. Multivariable regression analysis revealed that 60 years of age or older (OR, 5.70;

conclusionsThe aneurysm neck located on the outer convexity is a new, incomplete occlusion predictor, joining older age, fusiform aneurysms, and aneurysms with the branching artery from the dome. No permanent neurologic deficits or rupture was observed in the follow-up, even with incomplete occlusion.

Indexed as

Treatment OutcomeAdultAgedCohort StudiesEmbolization, TherapeuticEndovascular ProceduresFemaleHumansIntracranial AneurysmMaleMiddle AgedNeckRetrospective Studies

Identifiers

PMID33184073
PMCPMC7814796

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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.