Left Anterior Fascicular Block: Causes, Symptoms And Treatment

Causes of Left Anterior Fascicular Block

  • A problem with the electrical impulses or conduction system of the front chambers of the heart is one of the main causes of left anterior fascicular block.
  • High blood pressure and heart attacks are also reasons why this condition is likely to occur, as well as lung diseases and general aging.
  • The blockage may give a red flag to an underlying heart disease.

Left Anterior Fascicular Block Symptoms

  • The ventricles are not beating at the same time. They are beating one at a time.
  • There may be chest pain, intermittent and reoccurring. Chest pain is not always present.
  • Sometimes there are no symptoms and this condition is picked up on an EKG when doing a medical work up for another reason.
  • Dizziness can be a symptom of a defect in cardiac function.
    Unconsciousness may occur.

Left Anterior Fascicular Block Treatment

  • Treatment of left anterior fascicular block depends on the extent of blockage in the bundles.
  • In some cases. Individual symptoms may be addressed and treated.
  • In some instances a pacemaker may need to be inserted.
  • Any indication of bundle block defects in its conduction system requires further medical investigation.
  • It is very rare with this condition to have a complete blockage that very suddenly causes a heart attack.
  • Heart healthy diets are needed to keep the heart functioning properly.
  • Add the essential Omega vitamins to keep the arteries clear and free of plaque.
  • Exercise regularly and in moderation. It does not have to be pure physical exertion. A walk around the block each day helps tremendously alongside eating right.
  • Don’t smoke and avoid alcoholic beverages. Alcohol constricts your blood vessels and breaks down the immune system. Add lean meats and good proteins to your diet. Stay away from refined carbohydrates.


  1. Rose said:

    I work for long hours and my job is stressful. Sometimes, I have to work at night. Recently I have been told that I am having anterior fascicular block on EKG. Is it necessary to cut down my working hours and stop night shifts?

    July 31, 2014
    • PUP said:

      If your job is stressful find ways to reduce stress. If you can cut down the working hours, this may help your body to be less strained. At the same time eat healthy foods that contain omega 3 fatty acids. Do moderate exercises such as walking which may be beneficial for your heart as well as your mind. Avoid smoking and alcohol is you are taking them.

      July 31, 2014
  2. KG said:

    I recently had an ECG which stated that I had left anterior vascular blockage. Is this something to worry about? I am 63 years old, don’t smoke, am a light social drinker, do moderate exercise most days, have a busy but not stressful business, overall eat healthily with plenty of fresh fruit and vegetables and only small amounts of red meat. But I have elevated cholesterol and a family history of heart disease/stroke. I sleep only fitfully and for short staggered periods.

    December 7, 2014
    • PUP said:

      Coronary artery blockage is something that needs medical attention. There are several factors which increases the risk of heart attacks such as raised cholesterol level in blood, high blood pressure, diabetes, and family history of heart ailment. Considering this obvious risk factors, you need a thorough heart disease evaluation. Consult a cardiologist. If he finds it necessary, he may advice you to undergo coronary angiography which gives clear picture of the blockages present in the coronary artery. To reduce cholesterol, aside from the medication prescribed by the doctor, you have to make few changes in your lifestyle. Eat less of oily and fried food. Avoid living sedentary life. Regularly walk for 30 minutes in a day. Eat healthy foods such as vegetables, fruits, cereal preparations etc.

      December 8, 2014

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