Evidence map›Paper›PMID 31712962›Full record

ArticleEuropean radiology2020

Radiation exposure and fluoroscopy time in mechanical thrombectomy of anterior circulation ischemic stroke depending on the interventionalist's experience-a retrospective single center experience.

Charlotte S Weyland, Felix Hemmerich, Markus A Möhlenbruch, Martin Bendszus, Johannes A R Pfaff

Abstract read
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In one paragraph

Article in European radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. The effect of operator's experience on mechanical thrombectomy outcomes: A systematic review.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
    Pooled it
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  3. Procedural factors associated with successful recanalization in patients with acute ischemic stroke treated with endovascular thrombectomy-a nationwide register-based observational study.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2026
    Observational
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  7. Shorter procedures and less radiation with monopoint aspiration compared to conventional aspiration or stentriever-assisted aspiration for mechanical thrombectomy.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2025
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  9. [Detection of ionizing radiation in operating room and hospital areas].Revista medica del Instituto Mexicano del Seguro Social · 2024
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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 at 1 institution in 1 country.

Charlotte S WeylandDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
Felix HemmerichDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
Markus A MöhlenbruchDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
Martin BendszusDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany.
Johannes A R PfaffDepartment of Neuroradiology, Heidelberg University Hospital, Im Neuenheimer Feld 400, 69120, Heidelberg, Germany. Johannes.pfaff@med.uni-heidelberg.de.ORCID http://orcid.org/0000-0003-0672-5718
Heidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo quantify the influence of interventionalist's experience on procedure time, radiation exposure, and fluoroscopy time during mechanical thrombectomy (MT) in the anterior circulation.

methodsRetrospective analysis of an institutional review board-approved stroke database of a comprehensive stroke center focusing on radiation exposure (as per dose area product in Gy × cm

resultsOverall, 696 patients have been included in this analysis (A, n = 152; B, n = 151; C, n = 393). Procedure times (A, 86 [54-131]; B, 67 [48-103], p value 0.006), fluoroscopy times (A, 39 [25-72]; B, 32 [20-53], p value 0.001) as well as radiation exposure (A, 148.13 [89.58-243.37]; B, 111.60 [70.49-180.57], p value 0.001) were significantly shorter, respectively lower in group B than in group A. Procedure times (C, 59 [36-99]), fluoroscopy times (C, 31 [16-53]), and radiation exposure (C, 113.91 [68.48-182.88]) in group C were also significantly shorter/lower than in group A (all p values < 0.0001), but comparable with group B (p values 0.071, 0.809, and 0.934).

conclusionThis retrospective analysis demonstrates a significant influence of interventionalist's experience on procedure time, fluoroscopy time, and radiation exposure in mechanical thrombectomy in the anterior circulation. KEY POINTS: • There is a significant influence of interventionalist's experience on procedure time, fluoroscopy time, and radiation exposure in mechanical thrombectomy in the anterior circulation. • Interventionalists' learning curve is steepest during the first 25 cases. • These circumstances should be considered when reference levels or guide values are established and in training of physicians performing mechanical thrombectomy to promote optimization of patient doses in the future.

Indexed as

AgedAnterior Cerebral ArteryBrain IschemiaClinical CompetenceFemaleFluoroscopyHumansMaleRadiation DosageRadiation ExposureRadiologistsRetrospective StudiesRisk FactorsSurgery, Computer-AssistedThrombectomyFluoroscopyLearning curveRadiation exposureStrokeThrombectomy

Identifiers

PMID31712962
OpenAlexW2988758951

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.