Evidence map›Paper›PMID 33600703›Full record

ArticleJournal of stroke2021

Perfusion and Diffusion Variables Predict Early Neurological Deterioration in Minor Stroke and Large Vessel Occlusion.

Dong-Seok Gwak, Jung-A Kwon, Dong-Hyun Shim, Yong-Won Kim, Yang-Ha Hwang

Abstract read
In one paragraph

Article in Journal of stroke, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  15. High serum total cholesterol associated with good outcome in endovascular thrombectomy for acute large artery occlusion.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
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  16. Perfusion profile evaluated by severity-weighted multiple Tmax strata predicts early neurological deterioration in minor stroke with large vessel occlusion.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
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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

5 authors.

Dong-Seok GwakDepartment of Neurology, Kyungpook National University Hospital, Daegu, Korea.
Jung-A KwonDepartment of Neurology, Kyungpook National University Hospital, Daegu, Korea.
Dong-Hyun ShimDepartment of Neurology, Kyungpook National University Hospital, Daegu, Korea.
Yong-Won KimDepartment of Neurology, Kyungpook National University Hospital, Daegu, Korea.
Yang-Ha HwangDepartment of Neurology, Kyungpook National University Hospital, Daegu, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposePatients with acute large vessel occlusion (LVO) presenting with mild stroke symptoms are at risk of early neurological deterioration (END). This study aimed to identify the optimal imaging variables for predicting END in this population.

methodsWe retrospectively analyzed 94 patients from the prospectively maintained institutional stroke registry admitted between January 2011 and May 2019, presenting within 24 hours after onset, with a baseline National Institutes of Health Stroke Scale score ≤5 and anterior circulation LVO. Patients who underwent endovascular therapy before END were excluded. Volumes of Tmax delay (at >2, >4, >6, >8, and >10 seconds), mismatch (Tmax >4 seconds - diffusion-weighted imaging [DWI] and Tmax >6 seconds - DWI), and mild hypoperfusion lesions (Tmax 2-6 and 4-6 seconds) were measured. The association of each variable with END was examined using receiver operating characteristic curves. The variables with best predictive performance were dichotomized at the cutoff point maximizing Youden's index and subsequently analyzed using multivariable logistic regression.

resultsEND occurred in 39.4% of the participants. The optimal variables were identified as Tmax >6 seconds, Tmax >6 seconds - DWI, and Tmax 4-6 seconds with cut-off points of 53.73, 32.77, and 55.20 mL, respectively. These variables were independently associated with END (adjusted odds ratio [aOR], 12.78 [95% confidence interval (CI), 3.36 to 48.65]; aOR, 5.73 [95% CI, 2.04 to 16.08]; and aOR, 9.13 [95% CI, 2.76 to 30.17], respectively).

conclusionsTmax >6 seconds, Tmax >6 seconds - DWI, and Tmax 4-6 seconds could identify patients at high risk of END following minor stroke due to LVO.

Indexed as

Clinical deteriorationMagnetic resonance imagingStroke

Identifiers

PMID33600703
PMCPMC7900396

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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.