Evidence map›Paper›PMID 27541957›Full record

ArticleClinical neuroradiology2018

Bridging Therapy with i. v. rtPA in MCA Occlusion Prior to Endovascular Thrombectomy: a Double-Edged Sword?

Johannes Kaesmacher, Justus F Kleine

Abstract read
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In one paragraph

Article in Clinical neuroradiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 6 pooled it
4.5field-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

21 citing papers in PubMed, 6 syntheses or guidelines pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Intravenous thrombolysis before mechanical thrombectomy for acute ischemic stroke due to large vessel occlusion; should we cross that bridge? A systematic review and meta-analysis of 36,123 patients.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Pooled it
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  11. In a hub-and-spoke network, spoke-administered thrombolysis reduces mechanical thrombectomy procedure time and number of passes.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2023
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  14. Prevalence of a Multiple Territory Stroke Pattern After Intravenous Thrombolysis.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2020
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  20. Risk of Thrombus Fragmentation during Endovascular Stroke Treatment.AJNR. American journal of neuroradiology · 2017
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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

2 authors at 1 institution in 1 country.

Johannes KaesmacherAbteilung für diagnostische und interventionelle Neuroradiologie, Technische Universität München, Ismaninger Str 22, 81675, Munich, Germany.
Justus F KleineAbteilung für diagnostische und interventionelle Neuroradiologie, Technische Universität München, Ismaninger Str 22, 81675, Munich, Germany. justus.kleine@tum.de.
Technical University of Munich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent studies suggested that preinterventional intravenous (i. v.) recombinant tissue plasminogen activator (rtPA) as bridging therapy facilitates successful and fast vessel recanalization in endovascular stroke treatment (EST); however, data on this effect and the associated clinical value are discrepant.

objectiveThis study examined if this discrepancy could be related to an effect-modifying variable, specifically to the exact occlusion site.

methodsRetrospective analysis of 239 patients with acute occlusion of the middle cerebral artery (MCA) treated with up to date endovascular techniques. Effects of i. v.-rtPA bridging on clinical outcomes and safety/efficacy of EST, defined as the respective rates of successful, first pass and thrombolysis in cerebral infarction (TICI) scale 3 recanalization, were evaluated and stratified according to distal versus proximal occlusion sites.

resultsOverall, i. v.-rtPA bridging was associated with a significantly higher rate of successful recanalization (86.9 % vs. 75.7 %, p = 0.028). i. v.-rtPA bridging-related effects, however, were observable only in distal, but not in proximal MCA-occlusions. In distal occlusions, i. v.-rtPA clearly favored successful recanalization (adj. OR 4.6, 95 %-CI 1.5-13.6, p = 0.006) and first-pass successes (adj. OR 2.8, 95 %-CI 1.0-7.6, p = 0.042), but tended to be associated with lower rates of complete (TICI-3) reperfusion (adj. OR 0.4, 95 %-CI 0.2-1.1, p = 0.068). The net effect was a small clinical benefit, reflected in higher rates of strong neurological improvement (adj. OR: 2.8, 95 %-CI: 1.1-6.9, p = 0.03).

conclusioni. v.-rtPA-bridging-related effects are occlusion site-dependent, paralleling similar effects of systemic i. v.-rtPA when applied without subsequent endovascular therapy. In distal occlusions, i. v.-rtPA facilitates thrombectomy, but may also promote distal embolization, with a small clinical benefit as overall net effect. Randomized trials assessing i.v-rtPA bridging need to be stratified according to occlusions sites.

Indexed as

ThrombectomyAgedAged, 80 and overEndovascular ProceduresFemaleHumansInfarction, Middle Cerebral ArteryMaleMiddle AgedRetrospective StudiesStrokeThrombolytic TherapyTissue Plasminogen ActivatorTreatment OutcomeTissue Plasminogen ActivatorAcute strokeEndovascular proceduresMechanical thrombectomyThrombolytic therapyTissue plasminogen activator

Identifiers

PMID27541957
OpenAlexW2507334720

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.