The interruption or blockage of the normal conduction of electrical impulses in the heart. Heart block is classified as first degree, second degree or third degree (also known as complete heart block).

When the electrical impulse travelling from the atria to the ventricles in the heart sometimes don't conduct properly.

recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat

A death of heart tissue along the conductive "wires" of the heart, which causes the signal from above to be blocked, thereby altering the rythm and speed of the heart. They vary in severity from type 1-3.

A block in the heart's electrical system preventing some or all of the signals from the atrium to reach the ventricles.

The electrical impulses causing the heart to beat are slowed or blocked along the pathway between the upper and lower chambers, and usually requires a pacemaker.

Heart Block occurs when electrical impulses generated in the upper chambers of the heart are not properly transmitted to the lower chambers. The heart then beats too slowly, reducing the oxygen that gets to the body and brain.

Impairment of cardiac conduction so that electrical impulses from the atria fail to pass through the AV node to the ventricles.

A condition in which electrical impulses are not conducted in the normal fashion from the atria to the ventricles.

interrupted electrical impulse to heart muscles.

Occasionally the normal electrical signal does not travel down to the ventricles resulting in a slow heart rate or heart block. This situation can be diagnosed on ECG. If it occurs, a pacemaker is implanted.

A condition in which the electrical impulse which travels through the heart's specialized conduction system to trigger the events of the heartbeat is slowed or blocked along its pathway. This can result in a dissociation of the rhythms of the upper and lower heart chambers and is the major disorder for which artificial pacemakers are used.

A condition in which the impulses from the heart's upper chambers are delayed or blocked from reaching the lower chambers.

When the electrical impulses of the heart are slowed down or delayed by an interruption in the heart's normal electrical activity.

a disorder of the heart caused by a blockage of the nerve impulses to the heart that regulate heartbeat; may lead to dizziness, fainting, or stroke

A block in the conduction of the normal electrical impulses in the heart.

impairment of the conduction system of the heart, blocks the heartâ€(tm)s electrical pathways

Impairment of the conduction of electrical impulses through the heart. May be caused by damage to cardiac tissue or by the disease process within the electrical impulse system.

impairment of the conduction system of the heart that blocks its electrical pathways.

interrupted electrical impulse to the heart, which prevents coordinated beating of the chambers.

Total or partial blocking of electrical impulse travel from atria to ventricles resulting in slow or irregular pumping action.

An electrical disturbance in the controlling system of the heartbeat. Heart block can cause unconsciousness and in its worst form can lead to cardiac arrest.

A condition in which impulses are not conducted in the normal fashion from the atria to the ventricle. A form of arrhythmia caused by damage or disease processes somewhere in the tissue of the A-V junction. Three types: 1st degree, 2nd degree, and 3rd degree.

General term for conditions in which the electrical impulse that activates the heart muscle cells is delayed or interrupted somewhere along its path.

Heart block occurs when the heart beats too slowly because of a problem with the conduction of electrical impulses from the sinoatrial node. There are varying degrees of heart block. In complete heart block (or third degree heart block) the electrical impulses stop completely and the ventricles beats at their slow base rate of 20-40 beats per minute (versus a healthy average of 70 beats per minute). Causes of heart block include congenital heart disease, death of heart muscle (myocardial infarction), myocarditis, diseased valves, and scarring of the electrical conductive tissue of the heart. An artificial pacemaker can restore the heart's rhythm.

Partial delay or complete prevention of passage of cardiac impulse through atrioventricular bundle. May be of varying degrees.

A partial or complete interference of the conduction of electrical impulses from the atria to the ventricles. Alters the rhythm of the heartbeat, known as arrhythmia

A heart block is a disease in the electrical system of the heart. This is opposed to coronary artery disease, which is disease of the blood vessels of the heart. While coronary artery disease can cause angina (chest pain) or myocardial infarction (heart attack), heart block can cause lightheadedness, syncope (fainting), and palpitations.