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  1. Bundle Branch Block: Causes, Symptoms & Treatment

    May 5, 2022 · What is a bundle branch block? A bundle branch block (BBB) is when something blocks or disrupts the electrical signal that causes your heart to beat. This block leads to an abnormal heart …

  2. Left Bundle Branch Block (LBBB) • LITFL • ECG Library Diagnosis

    Oct 8, 2024 · New LBBB in the context of chest pain was once considered a “STEMI-equivalent” and part of the criteria for thrombolysis. However, more up-to-date data suggests that chest pain patients …

  3. What Is a Bundle Branch Block and Is It Serious?

    Jan 23, 2026 · A simple guide to bundle branch blocks. Learn how this electrical delay affects heart function and whether your specific diagnosis is benign or serious.

  4. Bundle Branch Block: What to Know - WebMD

    Jun 19, 2025 · If you have a bundle branch block, it may cause a glitch in the electrical impulses that make your heart beat.

  5. Bundle Branch Block - Heart and Blood Vessel Disorders - MSD …

    Bundle branch block is a type of conduction block involving partial or complete interruption of the flow of electrical impulses through the right or left bundle branches.

  6. Bundle Branch Block - Cedars-Sinai

    A bundle branch block is either a complete or a partial interruption of the electrical pathways inside the wall of the heart between the two lower chambers (ventricles).

  7. Bundle Branch Block | Cardiology | Mercy Health

    What is bundle branch block? Bundle Branch Block (BBB) is a condition where there is a delay or blockage in the electrical pathways (bundle branches) that carry signals to the left or right side of the …

  8. Understanding Bundle Branch Blocks - MedicTests

    A bundle branch block (BBB) is a block of the right or the left bundle branches that propagate depolarizations from the Sino-Atrial node to and through the ventricles.

  9. Bundle branch block - Symptoms & causes - Mayo Clinic

    Jun 11, 2022 · 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 …

  10. What do Right Bundle Branch Block (RBBB) and Left Anterior …

    Jan 22, 2026 · What RBBB and LAFB Mean on EKG RBBB (Right Bundle Branch Block) and LAFB (Left Anterior Fascicular Block) are electrical conduction abnormalities in the heart that indicate delayed or …