Causes and characteristics of the heart condition of arrhythmia

Injury from a heart attack. Healing process after heart surgery. Irregular heart rhythms can also occur in "normal, healthy" hearts.

Causes and characteristics of the heart condition of arrhythmia

Risk factors Risk factors for developing heart disease include: Aging increases your risk of damaged and narrowed arteries and weakened or thickened heart muscle. Men are generally at greater risk of heart disease.

A family history of heart disease increases your risk of coronary artery disease, especially if a parent developed it at an early age before age 55 for a male relative, such as your brother or father, and 65 for a female relative, such as your mother or sister. Nicotine constricts your blood vessels, and carbon monoxide can damage their inner lining, making them more susceptible to atherosclerosis.

Heart attacks are more common in smokers than in nonsmokers. Certain chemotherapy drugs and radiation therapy for cancer. Some chemotherapy drugs and radiation therapies may increase the risk of cardiovascular disease. Uncontrolled high blood pressure can result in hardening and thickening of your arteries, narrowing the vessels through which blood flows.

High blood cholesterol levels. High levels of cholesterol in your blood can increase the risk of formation of plaques and atherosclerosis. Diabetes increases your risk of heart disease.

Both conditions share similar risk factors, such as obesity and high blood pressure.

Causes and characteristics of the heart condition of arrhythmia

Excess weight typically worsens other risk factors. Lack of exercise also is associated with many forms of heart disease and some of its other risk factors, as well. Unrelieved stress may damage your arteries and worsen other risk factors for heart disease.

Not regularly washing your hands and not establishing other habits that can help prevent viral or bacterial infections can put you at risk of heart infections, especially if you already have an underlying heart condition.

Poor dental health also may contribute to heart disease. Complications Complications of heart disease include: Heart failure can result from many forms of heart disease, including heart defects, cardiovascular disease, valvular heart disease, heart infections or cardiomyopathy.

A blood clot blocking the blood flow through a blood vessel that feeds the heart causes a heart attack, possibly damaging or destroying a part of the heart muscle. Atherosclerosis can cause a heart attack. The risk factors that lead to cardiovascular disease also can lead to an ischemic stroke, which happens when the arteries to your brain are narrowed or blocked so that too little blood reaches your brain.

A stroke is a medical emergency — brain tissue begins to die within just a few minutes of a stroke. A serious complication that can occur anywhere in your body, an aneurysm is a bulge in the wall of your artery.

If an aneurysm bursts, you may face life-threatening internal bleeding. Atherosclerosis also can lead to peripheral artery disease. This causes symptoms, most notably leg pain when walking claudication.

Sudden cardiac arrest is the sudden, unexpected loss of heart function, breathing and consciousness, often caused by an arrhythmia. Sudden cardiac arrest is a medical emergency. If not treated immediately, it is fatal, resulting in sudden cardiac death.The American Heart Association has information about Atrial Fibrillation, quivering heart, Bradycardia, slow heart rate, Premature contraction, Tachycardia, fast beat, Ventricular Fibrillation, fluttering heart, Rhythm Disorders, treatment of arrhythmia, symptoms of arrhythmia, diagnosis of arrhythmia, monitoring the heart, and much more.

Arrhythmia is when your heart rate begins to speed up, or slow down which can cause pain, or chest fluttering. When it is too high, its medically referred to as “tachycardia, and when it is too slow, it is referred to as “bradycardia”.

In older individuals, a sinus arrhythmia can occur as a result of heart disease or another heart condition. Damage to the sinus node can prevent the electrical signals from leaving the node and. This common irregular heart rhythm causes the upper chambers of the heart to contract abnormally.

Atrial flutter. This is an arrhythmia that's usually more organized and . Ventricular tachycardia is a heart rhythm disorder (arrhythmia) caused by abnormal electrical signals in the lower chambers of the heart (ventricles).

Your heart rate . Narrowed heart arteries, a heart attack, abnormal heart valves, prior heart surgery, heart failure, cardiomyopathy and other heart damage are risk factors for almost any kind of arrhythmia.

High blood pressure.

Arrhythmia | National Heart, Lung, and Blood Institute (NHLBI)