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Abstract Fragmented QRS complex(fQRS) is regarded to derive from conduction delay caused by myocardial scar, which is commonly seen in patients with coronary heart disease and myocardial infarction, and also in patients suffering from cardiomyopathy and congenital heart disease. Clinically, fQRS plays important roles in the prediction, prevention and treatment of arrhythmogenic right ventricular cardiomyopathy, and the early warning of Brugada syndrome and nonischemic cardiomyopathy. Since the risk stratification of sudden cardiac death(SCD) is obviously bounded in major risk factors and predictors, it is required to explore new noninvasive electrocardiologic examination method. fQRS can be considered as one of the important parts in the risk stratification or risk score of SCD.
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2016, Vol. 25 
