Cited by 331Atrial Fibrillation Management and OutcomesAcute Ischemic Stroke ManagementCardiovascular and Diving-Related Complications

Noninvasive Cardiac Monitoring for Detecting Paroxysmal Atrial Fibrillation or Flutter After Acute Ischemic Stroke: A Systematic Review

Open access
Liao, Joy, Khalid, Zahira, Scallan, Ciaran, Morillo, Carlos, O’Donnell, Martin·2007·Stroke

Abstract

Background and Purpose— Identifying paroxysmal atrial fibrillation/flutter is an essential part of the etiological workup of patients with ischemic stroke. However, there is controversy in the literature regarding the use of noninvasive cardiac rhythm monitoring with previous reviews reporting a low detection rate with routine monitoring. We performed a systematic review to determine the frequency of occult atrial fibrillation/flutter detected by noninvasive methods of continuous cardiac monitoring after acute ischemic stroke or transient ischemic attack. Methods— Studies were identified from comprehensive searches of PubMed, EMBASE, Science Citation Index, and bibliographies of relevant articles. Only English language articles were included. Randomized controlled trials and prospective cohort studies of consecutive patients with acute ischemic stroke that fulfilled predefined criteria were eligible. Two authors conducted searches and abstracted data from eligible studies independently. Results— Sixty studies were deemed potentially eligible. After application of eligibility criteria, 5 studies (736 participants) were included in the analysis. All studies evaluated Holter monitoring; 2 also evaluated event loop recording. In studies that evaluated Holter monitoring (588 participants), new atrial fibrillation/flutter was detected in 4.6% (95% CI: 0% to 12.7%) of consecutive patients with ischemic stroke. Duration of monitoring ranged from 24 to 72 hours. Two studies (140 participants) evaluated event loop recorders after Holter monitoring. New atrial fibrillation/flutter was detected in 5.7% and 7.7% of consecutive patients in these 2 studies. Conclusions— Screening consecutive patients with ischemic stroke with routine Holter monitoring will identify new atrial fibrillation/flutter in approximately one in 20 patients. Although based on limited data, extended duration of monitoring may improve the detection rate. Further research is required before definitive recommendations can be made.

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Crossref · 10.1161/strokeaha.106.478685

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  • AF and associated thrombus formation is the most common cardioembolic source of ischemic stroke.

    “AF and associated thrombus formation is the most common cardioembolic source of ischemic stroke (Liao et al., 2007).”

    From 2017 ISHNE-HRS expert consensus statement on ambulatory ECG and external cardiac monitoring/telemetry (2017) · cites this paper as Liao et al., 2007

    The opening passage (labeled Abstract in our copy; page unavailable) calls AF a strong stroke risk factor and arguably the most important finding on cardiac workup after ischemic stroke. It does not say AF is the most common cardioembolic source or link it to thrombus formation. The only thrombus mention found is an exclusion criterion for one included study. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Ambulatory ECG monitoring is the standard of care to screen symptomatic outpatient adults for high-risk ventricular and atrial arrhythmias.

    “Ambulatory electrocardiographic (ECG) monitoring is the standard of care to screen symptomatic outpatient adults for high-risk ventricular and atrial arrhythmias [1–3].”

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Research works printed but not linked: 2

  1. [12]12. O'Donnell M, Oczkowski W, Fang J, Kearon C, Kapral M, Silva J, Bradley C, Gould L, D'Uva C, Silver F. Influence of pre-admission antithrombotic therapy on stroke severity in patients with atrial fibril- lation: an observational study. Lancet Neurol. 2006;5:749 -754.
  2. [34]34. Kessler DK, Kessler KM, Myerburg RJ. Ambulatory electrocardiogra- phy: a cost per management decision analysis. Arch Intern Med. 1995; 155:165-169.

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Authors
Liao, J., Khalid, Z., Scallan, C., Morillo, C., & O’Donnell, M.
Affiliations
  • McGill University (CA)
  • From McMaster University (J.L., Z.K., C.M., M.O.), Hamilton, Ontario, Canada; and McGill University (C.S.), Montreal, Quebec, Canada.
Venue
Stroke
Published
2007-11
Volume
38
Issue
11
Pages
2935-2940
ISSN
  • 0039-2499 (ISSN-L)
  • 1524-4628
OpenAlex
W2170421789
Cited by
331
References
36
Citations by year
2026: 3 · 2025: 5 · 2024: 4 · 2023: 8 · 2022: 8 · 2021: 16 · 2020: 11 · 2019: 9 · 2018: 13 · 2017: 26 · 2016: 15 · 2015: 31 · 2014: 34 · 2013: 29 · 2012: 36
FWCI
3.53
Type
journal article
Language
en
Open access
Locations
  • Stroke (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • McMaster University
  • Canadian Institutes of Health Research
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cardiovascular and Diving-Related Complications
Keywords
paroxysmal atrial fibrillation, atrial flutter, acute ischemic stroke, transient ischemic attack, Holter monitoring, cardiac rhythm monitoring, stroke etiology
MeSH terms
Acute Disease, Aged, Atrial Fibrillation, Atrial Flutter, Brain Ischemia, Clinical Trials as Topic, Female, Humans, Male, Middle Aged, Predictive Value of Tests, Sensitivity and Specificity, Electrocardiography, Ambulatory, Stroke

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