Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Research Highlight
  • Published:

Acute coronary syndromes

Implantable cardiac monitor enables long-term recording of arrhythmias following acute myocardial infarction

Nature Reviews Cardiology volume 7, page 668 (2010)Cite this article

Subjects

Patients with decreased left ventricular ejection fraction after AMI are at increased risk of death during the 2 years following infarction. The contribution of arrhythmias to this increased risk and the incidence of these events after the acute phase of myocardial infarction are not well known, as patients are not usually continually monitored. The Reveal® Plus 9526 (Medtronic Inc., Minneapolis, MN, USA) implantable cardiac monitor (ICM) enables automatic electrocardiographic recording for up to 2 years after implantation.

In the CARISMA study, 297 patients who had a left ventricular ejection fraction ≤40% after AMI received an ICM within 21 days of the event and were followed for 1.9 ± 0.5 years on average. The ICM registered the occurrence of 885 arrhythmias in 137 patients (46.1% of the study population); 86% of these events were asymptomatic. Analysis of the 36 patients (12%) who died during follow-up showed sinus bradycardia and high-degree atrioventricular block to be independent predictors of all-cause mortality and cardiac-related death. Of note, second-degree to third-degree atrioventricular block was a stronger predictor of death than any other clinical variable analyzed.

This is a preview of subscription content, access via your institution

Access options

Buy this article

  • Purchase on SpringerLink
  • Instant access to the full article PDF.

USD 39.95

Prices may be subject to local taxes which are calculated during checkout

ORIGINAL RESEARCH PAPER

  1. Bloch Thomsen, P. E. et al. Long-term recording of cardiac arrhythmias with an implantable cardiac monitor in patients with reduced ejection fraction after acute myocardial infarction: the Cardiac Arrhythmias and Risk Stratification After Acute Myocardial Infarction (CARISMA) study. Circulation 122, 1258–1264 (2010)

    Article  Google Scholar 

Download references

Authors
  1. Joana Osório
    View author publications

    Search author on:PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Osório, J. Implantable cardiac monitor enables long-term recording of arrhythmias following acute myocardial infarction. Nat Rev Cardiol 7, 668 (2010). https://doi.org/10.1038/nrcardio.2010.174

Download citation

  • Published:

  • Issue date:

  • DOI: https://doi.org/10.1038/nrcardio.2010.174

Search

Advanced search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing