Cardiac arrhythmias_Germany_Regensburg

In resting human heart beats at a frequency of 60 to 100 / min . When signs of slow heartbeats ( 30-60 beats / minute ) , we speak of a bradycardia . This can also cause a loss of consciousness ( syncope ) symptoms such as weakness , shortness of breath , nausea, dizziness , and in extreme .
A heart rate above 100 / min will be referred to as a tachycardia. Most arrhythmias ( " tachycardia " ) are associated with an accelerated heart action and are called " palpitations " perceived . Cardiac arrhythmias are a function of their origin in the atria than supraventrikuläre- , or the ventricles - called ventricular arrhythmias . Ventricular arrhythmias that originate in the ventricles can cause a life-threatening cardiovascular arrest.