Evidence map›Paper›PMID 33549156›Full record

SynthesisDeutsches Arzteblatt international2020

Diagnosis, Treatment and Follow-up in Extracranial Carotid Stenosis.

Hans-Henning Eckstein, Andreas Kühnl, Joachim Berkefeld, Holger Lawall, Martin Storck, Dirk Sander

Open access · greenAbstract readSystematic Review
In one paragraph

Synthesis in Deutsches Arzteblatt international, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 3 pooled it
3.9field-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

37 citing papers in PubMed, 3 syntheses or guidelines pooled it, 53 citations in OpenAlex.

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  12. Observational
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  14. [Stenting of the extracranial internal carotid artery].Innere Medizin (Heidelberg, Germany) · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 2 countries.

Hans-Henning EcksteinSpokesman (HHE) and Secretary (AK) of the Steering Group, Department forf Vascular and Endovascular Surgery, University Hospital "rechts der Isar", Technical University of Munich; Member of the Steering Group, Institute for Neuroradiology, University Hospital Frankfurt; Member of the Steering Group, Ettlingen; Member of the Steering Group, Department of Vascular and Thoracic Surgery, Karlsruhe Municipal Hospital Member of the Steering Group, Department of Neurology and Stroke Unit, Benedictus Hospital Tutzing; German Vascular Society (DGG); German Society of Neuroradiology (DGNR); German Society for Angiology/Vascular Medicine (DGA); German Society of Surgery (DGCH); German Society of Neurology (DGN).
Andreas Kühnl
Joachim Berkefeld
Holger Lawall
Martin Storck
Dirk Sander
Goethe University Frankfurt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAround 15% of cerebral ischemias are caused by lesions of the extracranial carotid artery. The goal of this guideline is to provide evidence- and consensus-based recommendations for the management of patients with extracranial carotid stenoses throughout Germany and Austria.

methodsA systematic literature search (1990-2019) and methodical assessment of existing guidelines and systematic reviews; consensus-based answers to 37 key questions with evidence-based recommendations.

resultsThe prevalence of extracranial carotid artery stenoses is around 4% overall, higher from the age of 65 years. The most important examination modality is duplex sonography. Randomized trials have shown that carotid endarterectomy (CEA) significantly reduces the 5-year risk of stroke in patients with 60-99 % asymptomatic stenoses (absolute risk reduction [ARR] 4.1% over 5 years, number needed to treat [NNT] 24) or 50-99% symptomatic stenoses (50-69%: ARR 4.6 % over 5 years, NNT 22; 70-99%: 15.9 % over 5 years, NNT 6). With the aid of intensive conservative treatment, the carotid artery-associated risk of stroke can be reduced to as little as 1% per year. Critical determination of indications and strict quality criteria are therefore necessary for CEA and carotid artery stenting (CAS). Systematic reviews of controlled trials comparing CEA and CAS show that the procedural risk of stroke is higher for CAS (asymptomatic: 2.6% versus 1.3%; symptomatic: 6.2% versus 3.8%). There are no differences in the long term. CEA is recommended as standard procedure for high-grade asymptomatic and moderate to high-grade symptomatic carotid artery stenoses; CAS may be considered as an alternative. For both procedures, the periprocedural combined rate of stroke or death should not exceed 2% for asymptomatic stenoses or 4% for symptomatic stenoses.

conclusionFuture studies should evaluate even better selection criteria for optimal individualized treatment, whether conservative, surgical, or endovascular.

Indexed as

Carotid StenosisEndarterectomy, CarotidStrokeAgedAustriaFollow-Up StudiesGermanyHumansRisk FactorsStentsTreatment Outcome

Identifiers

PMID33549156
PMCPMC7947643
OpenAlexW3099457898

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.