User:Mr. Ibrahem/Bradycardia

Bradycardia is defined as a heart rate of under 60 beats per minute (BPM) in adults, though symptoms generally only result when the heart rate is under 50. Mild symptoms may include tiredness and shortness of breath with exercise. Severe symptoms may include confusion, chest pain, syncope, and heart failure.

Bradycardia may be normal, such as in those who are physically fit, older in age, or during an autonomic response. It may also occur due to a number of health problems such as low oxygen, heart attack, low thyroid, AV block, high blood potassium, and toxicity due to beta blockers, calcium channel blockers, and digoxin. Diagnosis is by an electrocardiogram (ECG). The term "relative bradycardia" refer to a heart rate that, although not below 60 BPM, is considered too slow for the current medical condition.

In those with symptoms atropine may be used. Other measures may include cardiac pacing, either transcutaneous pacing or transvenous pacing, or infusions of the medications dopamine or epinephrine. Bradycardia is common. Bradycardia was described by Hippocrates before 370 BC.