Evidence map›Paper›PMID 29243292›Full record

ArticleJournal of interventional cardiology2018

Effects of endovascular cooling on infarct size in ST-segment elevation myocardial infarction: A patient-level pooled analysis from randomized trials.

Michael Dae, William O'Neill, Cindy Grines, Simon Dixon, David Erlinge, Marko Noc, Michael Holzer, Anne Dee

Abstract read
In one paragraph

Article in Journal of interventional cardiology, 2018. 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

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

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

  1. Impact of Mild Hypothermia As Adjunctive Therapy in Patients With ST-Elevation Myocardial Infarction: A Meta-Analysis and Trial Sequential Analysis of Randomized Controlled Trials.Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions · 2025
    Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Effects of Therapeutic Hypothermia on Normal and Ischemic Heart.Frontiers in cardiovascular medicine · 2021
    Review
  9. Review
  10. Selective cerebral cooling for acute ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  11. Article
  12. Review
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

8 authors.

Michael DaeDepartment of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California.
William O'NeillDivision of Cardiology, Henry Ford Hospital/Wayne State University, Detroit, Michigan.
Cindy GrinesDivision of Cardiology, Northwell Health, Manhasset, New York.
Simon DixonDepartment of Cardiovascular Medicine, Beaumont Health, Royal Oak, Michigan.
David ErlingeDepartment of Cardiology, Lund University, Clinical Sciences, Skane University Hospital, Lund, Sweden.
Marko NocCenter for Intensive Internal Medicine, University Medical Center Ljubljana, Slovenia.
Michael HolzerDepartment of Emergency Medicine, Medical University of Vienna, Vienna, Austria.
Anne DeeClinical Affairs and Biostatistics, ZOLL Circulation, San Jose, California.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study sought to examine the relationship between temperature at reperfusion and infarct size.

backgroundHypothermia consistently reduces infarct size when administered prior to reperfusion in animal studies, however, clinical results have been inconsistent.

methodsWe performed a patient-level pooled analysis from six randomized control trials of endovascular cooling during primary percutaneous coronary intervention (PCI) for ST-segment elevation myocardial infarction (STEMI) in 629 patients in which infarct size was assessed within 1 month after randomization by either single-photon emission computed tomography (SPECT) or cardiac magnetic resonance imaging (cMR).

resultsIn anterior infarct patients, after controlling for variability between studies, mean infarct size in controls was 21.3 (95%CI 17.4-25.3) and in patients with hypothermia <35°C it was 14.8 (95%CI 10.1-19.6), which was a statistically significant absolute reduction of 6.5%, or a 30% relative reduction in infarct size (P = 0.03). There was no significant difference in infarct size in anterior ≥35°C, or inferior infarct patients. There was no difference in the incidence of death, ventricular arrhythmias, or re-infarction due to stent thrombosis between hypothermia and control patients.

conclusionsThe present study, drawn from a patient-level pooled analysis of six randomized trials of endovascular cooling during primary PCI in STEMI, showed a significant reduction in infarct size in patients with anterior STEMI who were cooled to <35°C at the time of reperfusion. The results support the need for trials in patients with anterior STEMI using more powerful cooling devices to optimize the delivery of hypothermia prior to reperfusion.

Indexed as

AgedFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedPercutaneous Coronary InterventionRandomized Controlled Trials as TopicST Elevation Myocardial InfarctionTomography, Emission-Computed, Single-Photonhypothermiainfarct sizeSTEMI

Identifiers

PMID29243292
PMCPMC6001463

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.