Evidence map›Paper›PMID 33346850›Full record

ArticleClinical neuroradiology2021

Sex Differences in Outcome After Thrombectomy for Acute Ischemic Stroke are Explained by Confounding Factors.

Milani Deb-Chatterji, Eckhard Schlemm, Fabian Flottmann, Lukas Meyer, Anna Alegiani, Caspar Brekenfeld, Jens Fiehler, Christian Gerloff, Götz Thomalla, GSR-ET Investigators

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Clinical neuroradiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 52 citations in OpenAlex.

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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 1 institution in 1 country.

Milani Deb-ChatterjiDepartment of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. m.deb-chatterji@uke.de.ORCID http://orcid.org/0000-0003-4282-3518
Eckhard SchlemmDepartment of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Fabian FlottmannDepartment of Interventional Neuroradiology and Diagnostics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Lukas MeyerDepartment of Interventional Neuroradiology and Diagnostics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Anna AlegianiDepartment of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Caspar BrekenfeldDepartment of Interventional Neuroradiology and Diagnostics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Jens FiehlerDepartment of Interventional Neuroradiology and Diagnostics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Christian GerloffDepartment of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Götz ThomallaDepartment of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
GSR-ET Investigators
Universität Hamburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to analyze sex differences in outcome after thrombectomy for acute ischemic stroke in clinical practice in a large prospective multicenter registry.

methodsData of consecutive stroke patients treated with thrombectomy (June 2015-April 2018) derived from an industry-independent registry (German Stroke Registry-Endovascular Treatment) were prospectively analyzed. Multivariable binary logistic regression analyses were applied to determine whether sex is a predictor of functional independence outcome (defined as a modified Rankin scale [mRS] 0-2) 90 days after stroke.

resultsIn total, 2316 patients were included in the analysis, 1170 (50.5%) were female and 1146 (49.5%) were male. Women were older (median age 78 vs. 72 years; p < 0.001) and more frequently had a prestroke functional impairment defined by mRS >1 (24.8% vs. 14.1%; p < 0.001). In unadjusted analyses, independent outcome at 90 days was less frequent in women (33.2%) than men (40.6%; p < 0.001). Likewise, mortality was higher in women than in men (30.7% vs. 26.4%; p = 0.024). In adjusted regression analyses, however, sex was not associated with outcome. Lower age, a lower baseline National Institutes of Health Stroke Scale score, a higher Alberta Stroke Program Early CT score, prestroke functional independence, successful reperfusion, and concomitant intravenous thrombolysis therapy predicted independent outcome.

conclusionWomen showed a worse functional outcome after thrombectomy for acute ischemic stroke in clinical practice; however, after adjustment for crucial confounders sex was not a predictor of outcome. The difference in outcome thus appears to result from differences in confounding factors such as age and prestroke functional status.

Indexed as

Brain IschemiaEndovascular ProceduresIschemic StrokeStrokeAgedFemaleHumansMaleProspective StudiesRetrospective StudiesSex CharacteristicsThrombectomyTreatment OutcomeAngiographyGender differenceInterventionIschemiaOutcome predictors

Identifiers

PMID33346850
PMCPMC8648700
OpenAlexW3114757782

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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.