Search results
Results from the WOW.Com Content Network
A bifascicular block delays or stops electrical signals between the left and right bundle branches (fascicles). This problem affects your heart’s lower pumping chambers (ventricles), causing it to pump too slowly or out of rhythm (arrhythmia).
Bifascicular block involves conduction delay below the atrioventricular node in two of the three fascicles: Conduction to the ventricles is via the single remaining fascicle; The ECG will show typical features of RBBB plus either left or right axis deviation. RBBB + LAFB is the most common of the two patterns.
When we have right bundle branch block with either left anterior fascicular block (common) or left posterior fascicular block (less common) we call it a bifascicular block. The problem with bifascicular block is that the heart’s electrical conduction system is down to one fascicle.
Bundle branch block is a condition in which there's a delay or blockage along the pathway that electrical impulses travel to make the heart beat. It sometimes makes it harder for the heart to pump blood to the rest of the body.
Here we explore the difficult topic of Bifascicular Blocks on ECG...
Bifascicular block – The term bifascicular block most commonly refers to conduction disturbances below the atrioventricular (AV) node in which the right bundle branch and one of the two fascicles (anterior or posterior) of the left bundle branch are involved.
Bifascicular block is characterized by right bundle branch block with left anterior fascicular block, left bundle branch block, or right bundle branch block with left posterior fascicular block on electrocardiography.
The pacemaker releases electrical impulses when needed to keep the heart beating regularly. If you have bundle branch block with low heart-pumping function, you may need cardiac resynchronization therapy (biventricular pacing). This treatment is similar to having a pacemaker implanted.
Bundle branch block is partial or complete interruption of impulse conduction in a bundle branch; fascicular block is similar interruption in a hemifascicle of the left bundle. The disorders often coexist. There are usually no symptoms, but presence of either suggests a heart disorder.
Bifascicular block by itself is usually asymptomatic and is an incidental finding on ECG. In some patients, bifascicular block can progress to complete or intermittent heart block, as conduction through the single remaining fascicle fails. This can manifest as presyncope or syncope, dyspnoea or weakness on exertion.