Evidence map›Paper›PMID 8260271›Full record

ArticleBritish heart journal1993

Reassessment of treadmill stress testing for risk stratification in patients with acute myocardial infarction treated by thrombolysis.

R Stevenson, V Umachandran, K Ranjadayalan, P Wilkinson, B Marchant, A D Timmis

Abstract read
In one paragraph

Article in British heart journal, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

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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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Trial
  3. Trial
  4. Article
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  8. Article
  9. Review
  10. Article
  11. Risk stratifying patients who survive an acute myocardial infarction.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    Article
  12. Role of nuclear imaging after coronary revascularization.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

R StevensonDepartment of Cardiology, London Chest Hospital.
V Umachandran
K Ranjadayalan
P Wilkinson
B Marchant
A D Timmis

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate the role of a treadmill stress test for identifying patients at risk of recurrent ischaemic events after acute myocardial infarction treated by thrombolysis.

backgroundThe natural history of myocardial infarction has changed with the introduction of thrombolytic treatment; there is a lower mortality but a higher incidence of recurrent thrombotic events (reinfarction, unstable angina). The treadmill stress continues to be recommended for risk stratification after acute myocardial infarction even though its value has never been formally reassessed in the thrombolytic era.

methodsProspective observational study in which 256 consecutive patients who presented with acute myocardial infarction treated by thrombolysis underwent an early treadmill stress test and were followed up for 10 (range 6-12) months.

resultsRecurrent ischaemic events occurred in 41 patients (unstable angina 15, reinfarction 21, death five) and a further 21 required revascularisation. Both ST depression at a low workload and low exercise tolerance (< 7 metabolic equivalents of the task (METS) were predictive of recurrent events, with respective hazard ratios of 1.93 (95% confidence interval (95% CI) 1.17-3.20; p < 0.01)) and 1.67 (95% CI 1.0-2.78; p < 0.05). These variables identified 50% and 70% of patients who subsequently sustained a recurrent ischaemic event, but the corresponding values for positive predictive accuracy were only 26% and 21%. Thus they are of limited value as a screening measure for identifying patients likely to benefit from invasive investigation and revascularisation. None of the other variables (ST elevation, haemodynamic responses, ventricular extrasystoles, angina) was significantly associated with recurrent ischaemic events.

conclusionsThe treadmill stress test is of limited value for identifying patients at risk of recurrent ischaemic events after acute myocardial infarction treated by thrombolysis.

Indexed as

Exercise TestAdultAgedCardiac CatheterizationFemaleFollow-Up StudiesHeartHumansMaleMiddle AgedMyocardial InfarctionPredictive Value of TestsProspective StudiesRecurrenceRiskThrombolytic Therapy

Identifiers

PMID8260271
PMCPMC1025352

What OpenQuestion holds

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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.