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KMID : 1011920140150020030
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International Journal of Arrhythmia
2014 Volume.15 No. 2 p.30 ~ p.32
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How to Identify Hidden Arrhythmia in Cryptogenic Stroke
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On Young-Keun
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Abstract
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The prevalence and incidence of atrial fibrillation (AF) are increasing with the aging population. AF is the most common risk factor for ischemic stroke that often remains undetected. Approximately one-third of patients with AF are asymptomatic. Patients are unaware when paroxysmal AF occurs. Studies using systematic electrocardiogram (ECG) monitoring have suggested that 50?70% of AF episodes occur without symptoms. The most devastating complication of AF is an acute ischemic stroke. In these patients, earlier diagnosis and treatment are needed to prevent the complications of AF. Both 12-lead ECG and 24-h Holter monitoring have limitations in the detection of arrhythmia. Repetitive Holter monitoring should be used for the detection of paroxysmal AF. Implantation of loop recorders could detect new AF in approximately onefourth of cryptogenic stroke patients and would be a diagnostic option for AF in these patients
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KEYWORD
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atrial fibrillation, stroke, cryptogenic, loop recorder
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