If palpitations are due to a condition in which the upper chambers of the heart quiver instead of beating properly (atrial fibrillation), blood can pool and cause clots to form. Rarely, palpitations can be caused by life-threatening heartbeat problems and can cause the heart to stop beating effectively. This is more likely in those with a heart problem, such as congenital heart disease or certain valve problems. If the heart beats rapidly, blood pressure can drop, causing the person to faint.
Risk factors for heart palpitations include: Occasionally heart palpitations can be a sign of a serious problem, such as an irregular heart rhythm (arrhythmia).Īrrhythmias might cause a very fast heartbeat (tachycardia), an unusually slow heartbeat (bradycardia), a heartbeat that varies from a typical heart rhythm or a combination of the three. Hormone changes associated with menstruation, pregnancy or menopause.
Stimulants, including caffeine, nicotine, cocaine, amphetamines, and cold and cough medications that contain pseudoephedrine.Strong emotional responses, such as stress, anxiety or panic attacks.Often the cause of heart palpitations can't be found.
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