Evidence map›Paper›PMID 26251162›Full record

SynthesisCNS drugs2015

Intravenous Recombinant Tissue Plasminogen Activator Does Not Impact Mortality in Acute Ischemic Stroke at Any Time Point up to 6 Months: A Systematic Review and Meta-Analysis of Randomized Controlled Clinical Trials.

Gyanendra Kumar, Drew Uhrig, Susan Fowler, Matthew C DeLaney, Andrei V Alexandrov

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in CNS drugs, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 33% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Recombinant Destabilase fromCurrent issues in molecular biology · 2021
    Article
  4. Article
  5. Article
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 3 institutions in 1 country.

Gyanendra KumarDepartment of Neurology, Comprehensive Stroke Center, University of Alabama at Birmingham, 1813 6th Ave South, RWUH M226, Birmingham, AL, 35249, USA. kumarg@uab.edu.
Drew UhrigDepartment of Neurology, Comprehensive Stroke Center, University of Alabama at Birmingham, 1813 6th Ave South, RWUH M226, Birmingham, AL, 35249, USA.
Susan FowlerBecker Medical Library, Washington University in St. Louis, St. Louis, MO, USA.
Matthew C DeLaneyDepartment of Emergency Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
Andrei V AlexandrovDepartment of Neurology, University of Tennessee-Memphis, Memphis, TN, USA.
University of Alabama at Birmingham · USUniversity of Tennessee at Knoxville · USWashington University in St. Louis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectiveConcerns about the harms of intravenous alteplase (recombinant tissue plasminogen activator) continue to deter physicians from treating patients with acute ischemic stroke with the only drug proven to positively impact outcomes and reduce disability. Recent literature indicates an increase in mortality with alteplase within 7 days, an effect that does not persist from 3 months onwards. The objective of this meta-analysis was to pool mortality estimates from randomized controlled clinical trials (RCTs) at 7 days, 30 days, 90 days, and 6 months after stroke onset.

methodsPubMed, Embase, Scopus, CENTRAL, and clinicaltrials.gov were searched through to April 2014, using "hedges" for tissue plasminogen activator, acute ischemic stroke, and placebo. Two independent authors abstracted data and assessed study quality. Data were pooled using Dersimonian and Laird's random effects model.

resultsEleven RCTs (n = 6905) were included in the final analysis. Two authors independently performed study selection and data abstraction. There was no publication bias and total variance attributable to heterogeneity was not significant (I(2) < 50%) at any time point. There was no difference in mortality between alteplase and placebo groups at any time point. Trials that randomized patients beyond 3 h (excluded patients within the 3-h window) did not drive the mortality difference seen at any time point. Exclusion sensitivity analysis revealed that exclusion of the NINDS trial rendered the 7-day difference significant towards increased mortality with alteplase. Quality adjustment did not alter the results.

conclusionIntravenous alteplase did not impact mortality in patients with acute ischemic stroke at any of the measured time points up to 6 months (i.e., there was no increase in the risk of death with alteplase). Therefore, intravenous alteplase should be given to all eligible patients with acute ischemic stroke to improve long-term neurologic outcomes. The effects of alteplase on early survival are more complex than previously understood.

Indexed as

Administration, IntravenousBrain IschemiaFibrinolytic AgentsHumansRandomized Controlled Trials as TopicStrokeTime FactorsTissue Plasminogen ActivatorTreatment OutcomeFibrinolytic AgentsTissue Plasminogen Activator

Identifiers

PMID26251162
OpenAlexW1945043210

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.