Related Experiment Video
Updated: May 23, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Distribution of first-detected atrial fibrillation patients without structural heart diseases in symptom
Keitaro Senoo1, Shinya Suzuki, Koichi Sagara
1Department of Cardiology, The Cardiovascular Institute, 3-2-19 Nishiazabu, Minato-ku, Tokyo 106-0031, Japan. swcqg251@yahoo.co.jp
Background:
The characteristics and prognosis of patients with first-detected atrial fibrillation (AF) in Japan remain unclear.
Methods And Results:
First-detected AF patients without structural heart disease (n=289) were reviewed with regard to 2 symptom classifications (CCS-SAF and EHRA). In both classifications, asymptomatic patients comprised ≈40% of the patients, and patients in the most symptomatic class (≈6%) had peculiar characteristics and poor prognosis. In other symptomatic classes, symptoms affected the treatment strategy without a significant difference in the patients' backgrounds and prognosis.
Conclusions:
This is the first report to describe the distribution, characteristics and outcomes of first-detected AF patients according to symptom classifications.
Related Concept Videos
Heart Failure IV: Classification and Diagnostic Evaluation
Dysrhythmias V: Evaluating Dysrhythmias
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
Dysrhythmias II: Classification of Tachyarrhythmias
Dysrhythmias IV: Characteristics of Bradyarrhythmias

