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A second-degree heart block may cause the heart to skip a beat or beats, explains the National Heart, Lung and Blood Institute. It also makes a patient feel dizzy or faint. More »

www.reference.com Health Conditions & Diseases Cardiac Health

An irregular heart beat is associated with health issues such as heart disease, an imbalance of electrolytes in the blood, changes in the heart muscle or an injury caused by a heart attack. However, there are many caused... More »

www.reference.com Health Conditions & Diseases Cardiac Health

The sensation that the heart is beating harder or faster, fluttering, or skipping a beat is a common sign of heart palpitations, according to the National Heart, Lung, and Blood Institute. The feeling may occur in the ne... More »

www.reference.com Health Conditions & Diseases Cardiac Health
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Symptoms of heart blockage include fainting, light-headedness, fatigue and chest pain, according to the National Heart, Lung, and Blood Institute. First-degree heart block may not cause symptoms and is common in highly t... More »

www.reference.com Health Conditions & Diseases Cardiac Health

There are four main types of irregular heartbeats, also known as arrhythmia, including premature or extra beats, supraventricular arrhythmias, ventricular arrhythmias and bradyarrhythmias, according to the National Heart... More »

www.reference.com Health Conditions & Diseases Cardiac Health

The most apparent signs and symptoms of a carotid artery blockage include a transient ischemic attack, bruit and a stroke, according to the National Heart, Lung, and Blood Institute. Other symptoms may be weakness, numbn... More »

www.reference.com Health Conditions & Diseases Cardiac Health

When receiving a heart catheter, a patient is requested to lie on his back while the doctor numbs the area on the neck, groin or arm where the catheter is to be inserted into the blood vessel, explains the National Heart... More »

www.reference.com Health Conditions & Diseases Cardiac Health