Abstract 3072: Prolonged Cardiac Monitoring for Detecting Paroxysmal AF or Flutter after Acute Ischemic Stroke: A Meta-Analysis
Background and Purpose- Detecting AF/flutter is a critical aspect of workup of ischemic stroke patients. Recent studies have shown variable detection rates of AF with variable duration of monitoring. We performed a systematic review to determine the frequency of AF or flutter on prolonged cardiac monitoring (> or =3 days), in ischemic stroke patients.
Methods- Studies published in English language were identified from standard databases which included Medline, EMBASE, Science Citation Index and bibliographies of pertinent manuscripts. All studies who enrolled ischemic stroke patients to cardiac monitoring>3 days were eligible.
Results- Five studies met eligibility criteria. There were total 399 participants in the study which were included in the analysis. All studies evaluated cardiac monitors > or = 3 days. Duration of monitoring ranged from 3 days to more than 30 days. New AF was detected in 16% (95% CI: 8% to 28%) of patients with ischemic stroke. In a subgroup analysis of 3 studies which monitored patients for more than 20 days, AF detection rate was even higher 27% (95% CI: 22% to 33%)
Conclusions- Prolonged cardiac monitors detects new atrial/fibrillation or flutter in approximately 16 % cases. There was a trend of higher detection rates with longer duration of monitoring. Prospective studies
- © 2012 by American Heart Association, Inc.