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Editorial
The current definition of sinus tachycardia (>100 bpm) may need revision, as elevated resting heart rate is increasingly recognized as a potent cardiovascular risk factor.
The current definition of sinus tachycardia is a heart rate.100 beats per minute (bpm).1 This limit was set arbitrarily when heart rate was not yet regarded as a risk factor for cardiovascular disease, probably with the main purpose of distinguishing between a disease state (fever, thyrotoxicosis, anemia, congestive heart failure, etc) and a normal condition. Tachycardia as a Cardiovascular Risk Factor In recent years, interest has been aroused by the awareness that fast heart rate is a potent precursor of hypertension, atherosclerosis, and their sequelae.2–10 In addition, many leading epidemiological studies have shown that tachycardia is associated with an increased risk of death from cardiovas-cular and noncardiovascular causes. This relationship has been found in general populations,3–7 in elderly individuals,9 and in hypertensive cohorts.10 In all of these studies, the heart
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Paolo Palatini (1999) studied this question.
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