Heart palpitation harmless to serious
Irregular heartbeats (extrasystoles), which present themselves as cardiac arrhythmias in many affected individuals, are usually entirely harmless and generally do not require a trip to the doctor's. However, medical assessment is necessary when arrhythmias last for minutes or hours, or when they lead to other significant symptoms such as dizziness, impaired consciousness or shortness of breath. Further assessment is required when a heart condition is already present and arrhythmias emerge. Clinical studies have shown that those who suffer from cardiac arrhythmias are more at risk of developing atrial fibrillation.