Arrhythmias and sudden death in heart failure: electrical stratification of risk groups
Abstract
In this research is presented an overview of heart failure related to arrhythmias and sudden death, which can coexist, worsen, or be cause or consequence of one another. Here are discussed the premonitory electrical signs that allow to stratify risk in patients with previous events, with a possible approach to reality, and in those who have not presented them (most of them, the unprotected ones) and where a prognosis is very difficult, or impossible, to be established. These signs are numerous, elusive, with low specificity and sensitivity, none is absolute or negligible, in order to interpret them, a comprehensive vision is required. Premature ventricular contractions are discussed as predictors and triggers of arrhythmias, sudden death and cardiomyopathy, as well as the usefulness of ablative procedures versus medications. Electrical signs are good for identifying large risk groups but not for identifying high risk individuals inside the large low risk group (the majority).Downloads
References
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