Left Anterior Fascicular Block: LAFB Causes and Treatment

By | July 15, 2014

Left Anterior Fascicular Block is a heart condition which occurs when the transmission of pulses across the muscles of the heart is delayed due to delayed pumping of blood by the heart.

Diagnosis of this condition is achieved through the use of ECG. Otherwise known as left anterior hemiblock, LAFB is often as a result of improper functioning of the anterior half of the heart which contains some specialized cells which carry impulses from the AV node to the apex of the heart.

The condition becomes aggravated when myocardial infarction occurs. Other conditions that accompany LAFB include; cardio-myopathies, degenerative fibrotic disease and cardio-myopathies hypertension.

Causes of Left Anterior Fascicular Block

There are several factors responsible for the development of LAFB. Some of them include;

  • Dilation of the aortic root
  • Chronic hypertension is as a matter of fact the major cause of LAFB
  • Dilation of the cardiomyopathy
  • LAFB is also caused by aortic stenosis otherwise known as valvular disorder
  • Ageing as well as Degenerative fibrotic disease is also responsible for LAFB.
  • LAFB can develop due to the presence of liver disease.
  • About 4% of acute myocardial infarction contributes to LAFB.

Symptoms of Left Anterior Fascicular Block

This condition is often as a result of irregular contraction of the muscles of the heart. Most patients that suffer from this condition do not develop any particular symptom because LAFB is asymptomatic in nature. Diagnosis is performed using electrocardiogram reports. Some common symptoms associated with the condition include;

  • Intermittent pain in the chest which is often as a result of a damaged circulatory system.
  • Dizziness which results from defective functioning of the heart

2D echo or auscultation techniques are used in performing diagnosis.

Treatment of Left Anterior Fascicular Block

Treatment will largely depend on the severity of the blockage or the symptoms of the condition. Other treatment techniques used in managing LAFB include;

  • In depth examination of the heart to determine the severity of the condition.
  • Patients are placed on well planned diet that contain very little carbohydrate and fat. This will then be followed by increase in protein intake
  • An individual suffering from LAFB will be needed to take supplements such as omega-3, vitamins and fatty acid. It is also needful for saturated fat to be replaced with polyunsaturated fat as doing so improves the condition of the heart. It is also important for salt intake to be reduced.
  • Habits such as smoking and drinking have to be done away with. This is because alcohol and nicotine causes vasoconstriction, which further limits blood circulation.
  • Frequent exercising helps improve the condition of the heart suffering from LAFB. Jogging, walking and some physical activities is enough provided the patient’s health can tolerate it.
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