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Fragmented QRS: What Is The Meaning?
1Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 700-8558, Okayama, Japan ; Department of Cardiovascular Medicine, Sakakibara Heart Institute of Okayama, 700-0823, Okayama, Japan.
Indian Pacing and Electrophysiology Journal
|October 17, 2012
Summary
Fragmented QRS (fQRS), a marker on ECGs, identifies myocardial scar and predicts cardiac events. This non-invasive tool aids risk stratification across various heart conditions.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Diagnostics
Background:
- Fragmented QRS (fQRS) is a non-invasive electrocardiogram (ECG) finding.
- fQRS indicates myocardial scar, a substrate for arrhythmias and heart failure.
Purpose of the Study:
- To review the utility of fQRS in detecting myocardial scar.
- To assess fQRS as a predictor of adverse cardiac events and mortality.
- To explore the application of fQRS in diverse cardiac pathologies.
Main Methods:
- Analysis of existing literature on fQRS.
- Correlation of fQRS findings with myocardial scar assessed by imaging techniques (e.g., SPECT).
- Evaluation of fQRS as a prognostic marker in various patient cohorts.
Main Results:
- fQRS is associated with myocardial scar in patients with coronary artery disease (CAD).
- fQRS predicts cardiac events, mortality, and arrhythmias in patients with reduced left ventricular function.
- fQRS utility extends to conditions like cardiac sarcoidosis, ARVC, ACS, Brugada syndrome, and LQTS.
Conclusions:
- fQRS is a valuable, convenient marker for myocardial scar and risk stratification.
- fQRS aids in identifying high-risk patients across a spectrum of cardiac diseases.
- fQRS findings correlate with prognosis, ventricular dysfunction, and arrhythmogenesis.
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