Tachyarrhythmias occur when the frequency exceeds 100 pulsations per minute. Generally speaking, they are not serious and usually occur due to an excess of automatism. Bear in mind that drinking a lot of coffee and not sleeping enough are among the causes.

The main symptoms experienced by people who suffer from them are palpitations, higher pulse rates, premature and intermittent beats, dizziness and a rapid and chaotic rhythm, among others. 

The diagnosis is confirmed by an electrocardiogram, and several monitoring options may be considered to control them. With this diagnostic test we can detect different syndromes which make us prone to sudden death, and the specialists will decide what is the best approach in each case.