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“Untreated, if there is too much tachycardia for too long, it can put excess strain on the heart muscle by overworking it and it can cause abnormal heart enlargement and weakening of the heart ...
The fastest human ventricular conduction rate recorded to this day is a conducted tachyarrhythmia with ventricular rate of 600 beats per minute, [32] which is comparable to the heart rate of a mouse. For general purposes, a number of formulas are used to estimate HR max .
On average, though, the AHA says a resting heart rate of 60 to 100 beats per minute (bpm) is “normal” for most adults. ... For more on heart health: Hypertension is a ‘silent killer.’
Arrhythmias, also known as cardiac arrhythmias, are irregularities in the heartbeat, including when it is too fast or too slow. [2] A resting heart rate that is too fast – above 100 beats per minute in adults – is called tachycardia, and a resting heart rate that is too slow – below 60 beats per minute – is called bradycardia. [2]
It may be difficult to determine the rhythm's regularity when the rate exceeds 150 beats per minute. Depending on the patient's health and other variables such as medications taken for rate control, atrial fibrillation may cause heart rates that span from 50 to 250 beats per minute (or even higher if an accessory pathway is present). However ...
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The heart beats at a resting rate close to 72 beats per minute. [10] Exercise temporarily increases the rate, but lowers it in the long term, and is good for heart health. [11] Cardiovascular diseases are the most common cause of death globally as of 2008, accounting for 30% of all human deaths.
Sinus tachycardia is a sinus rhythm of the heart, with an increased rate of electrical discharge from the sinoatrial node, resulting in a tachycardia, a heart rate that is higher than the upper limit of normal (90-100 beats per minute for adult humans). [1] The normal resting heart rate is 60–90 bpm in an average adult. [2]