Evidence map›Paper›PMID 27296511›Full record

ArticleScientific reports2016

The velocity of collateral filling predicts recanalization in acute ischemic stroke after intravenous thrombolysis.

Sheng Zhang, Xiaocheng Zhang, Shenqiang Yan, Yangxiao Lai, Quan Han, Jianzhong Sun, Minming Zhang, Mark W Parsons, Shaoshi Wang, Min Lou

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. 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
2.4field-weighted citation impact, top 12% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Relationships between brain perfusion and early recanalization after intravenous thrombolysis for acute stroke with large vessel occlusion.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Trial
  3. Acute reperfusion without recanalization: Serial assessment of collaterals within 6 h of using perfusion-weighted magnetic resonance imaging.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2019
    Trial
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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

10 authors at 2 institutions in 2 countries.

Sheng ZhangDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
Xiaocheng ZhangDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
Shenqiang YanDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
Yangxiao LaiDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
Quan HanDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
Jianzhong SunDepartment of Radiology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
Minming ZhangDepartment of Radiology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
Mark W ParsonsDepartment of Neurology, John Hunter Hospital, The University of Newcastle, Newcastle, New South Wales, Australia.
Shaoshi WangDepartment of Neurology, Shanghai Jiaotong University Affiliated Branch of People's No. 1 Hospital, Shanghai, China.
Min LouDepartment of Neurology, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China.
Second Affiliated Hospital of Zhejiang University · CNJohn Hunter Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to evaluate the impact of pretreatment quality of collaterals, involving velocity and extent of collateral filling, on recanalization after intravenous thrombolysis (IVT). A retrospective analysis was performed of 66 patients with acute middle cerebral artery (MCA) M1 segment occlusion who underwent MR perfusion (MRP) imaging before IVT. The velocity of collateral filling was defined as arrival time delay (ATD) of contrast bolus to Sylvian fissure between the normal and the affected hemisphere. The extent of collateral filling was assessed according to the Alberta Stroke Program Early CT (ASPECT) score on temporally fused maximum intensity projections (tMIP). Arterial occlusive lesion (AOL) score was used to assess the degree of arterial recanalization. ATD (OR = 0.775, 95% CI = 0.626-0.960, p = 0.020), but not tMIP-ASPECT score (OR = 1.073, 95% CI = 0.820-1.405, p = 0.607), was independently associated with recanalization (AOL score of 2 and 3) at 24 hours after IVT. When recanalization was achieved, hemorrhagic transformation (HT) occurred more frequently in patients with slow collaterals (ATD ≥ 2.3 seconds) than those with rapid collaterals (ATD < 2.3 seconds) (88.9% vs 38.1%, p = 0.011). In conclusion, the velocity of collaterals related to recanalization, which may guide the decision-making of revascularization therapy in acute ischemic stroke.

Indexed as

Thrombolytic TherapyAcute DiseaseAdministration, IntravenousAgedBrainCerebral RevascularizationCerebrovascular DisordersCollateral CirculationFemaleHumansIschemiaMaleMiddle AgedMiddle Cerebral ArteryPrognosisRetrospective Studies

Identifiers

PMID27296511
PMCPMC4906285
OpenAlexW2425286995

What OpenQuestion holds

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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.