Excessive Premature Atrial Complexes and the Risk of Recurrent Stroke or Death in an Ischemic Stroke Population

Kristina Høeg Vinther, Claus Tveskov, Sören Möller, Søren Auscher, Armin Osmanagic, Kenneth Egstrup

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Background Our aim was to investigate the association of premature atrial complexes and the risk of recurrent stroke or death in patients with ischemic stroke in sinus rhythm. Methods In a prospective cohort study, we used 24-hour Holter recordings to evaluate premature atrial complexes in patients consecutively admitted with ischemic strokes. Excessive premature atrial complexes were defined as >14 premature atrial complexes per hour and 3 or more runs of premature atrial complexes per 24 hours. During follow-up, 48-hour Holter recordings were performed after 6 and 12 months. Among patients in sinus rhythm, the association of excessive premature atrial complexes and the primary end point of recurrent stroke or death were estimated in both crude and adjusted Cox proportional hazards models. We further evaluated excessive premature atrial complexes contra atrial fibrillation in relation to the primary end point. Results Of the 256 patients included, 89 had atrial fibrillation. Of the patients in sinus rhythm (n = 167), 31 had excessive premature atrial complexes. During a median follow-up of 32 months, 50 patients (30% of patients in sinus rhythm) had recurrent strokes (n = 20) or died (n = 30). In both crude and adjusted models, excessive premature atrial complexes were associated with the primary end point, but not with newly diagnosed atrial fibrillation. Compared with patients in atrial fibrillation, those with excessive premature atrial complexes had similarly high risks of the primary end point. Conclusions In patients with ischemic stroke and sinus rhythm, excessive premature atrial complexes were associated with a higher risk of recurrent stroke or death.

Original languageEnglish
JournalJournal of Stroke & Cerebrovascular Diseases
Volume26
Issue number6
Pages (from-to)1163–1170
ISSN1052-3057
DOIs
Publication statusPublished - Jun 2017

Keywords

  • Atrial fibrillation
  • ischemic stroke
  • premature atrial complexes
  • prognosis
  • Predictive Value of Tests
  • Recurrence
  • Prognosis
  • Prospective Studies
  • Humans
  • Middle Aged
  • Brain Ischemia/diagnosis
  • Male
  • Atrial Premature Complexes/complications
  • Time Factors
  • Aged, 80 and over
  • Female
  • Stroke/diagnosis
  • Risk Assessment
  • Risk Factors
  • Kaplan-Meier Estimate
  • Proportional Hazards Models
  • Chi-Square Distribution
  • Telemetry
  • Aged
  • Atrial Fibrillation/complications
  • Electrocardiography, Ambulatory

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