Blackouts Due To An Abnormal Heart Beat - Fast Heart Beat

Blackouts can be caused due to an abnormal fast heart beat.  There are a number of ways abnormal fast heart beats can cause blackouts.

• They can result in an abnormal or uncoordinated pattern of heart muscle contraction and therefore low blood pressure.
• They can cause low blood pressure due to inefficient pumping of the heart due to a combination of the abnormal fast heart beat and other underlying heart disease.
• They can bring on a simple common faint in people who are predisposed to this type of faint.

Abnormal Fast Heart Beats that cause an Abnormal or Uncoordinated Pattern of Heart Muscle Contraction

Abnormal fast heart beats that result in an abnormal or uncoordinated pattern of heart muscle contraction are commonly associated with:

• Disease of the heart muscle, often in association with weakened heart pumping function
• Blockages of heart arteries that have caused damage to the heart muscle.
• Inherited conditions that result in abnormal heart muscle or electrical instability of the heart

These abnormal fast heart beats include:

• Ventricular Tachycardia
• Polymorphic Ventricular Tachycardia, and
• Ventricular Fibrillation

Abnormal Fast Heart Beats that can cause Low Blood Pressure in some situations or bring on a Simple Common Faint

Some abnormal fast heart rhythms start in the top chamber of the heart. In these situations the lower chambers of the heart beat in a coordinated fashion but much faster than normal and sometimes irregularly.
These abnormal heart beats are not life threatening and rarely result in blackouts unless there is other heart disease present or the abnormal beat brings on a simple faint in someone who is prone to simple faints.

These abnormal heart beats include:

• Atrial Fibrillation or Flutter
• Supraventricular Tachycardia

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