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CardiovascularCorner Profile picture
CardiovascularCorner
@TrackYourHeart
Your guide to a healthy heart and body. Follow for daily insights on wellness. Tweets are only for educational purposes. Follow me, and I'll follow you back
May 25 • 5 tweets • 2 min read
Left Bundle Branch Block (LBBB) & Septal Infarction – Understanding the ECG Clues

1/
 What is LBBB?
LBBB is a conduction abnormality where electrical impulses are delayed or blocked in the left bundle branch, leading to abnormal depolarization of the left ventricle. Image 2/
 Mechanism of Uncomplicated (Pure) LBBB
- The septum, normally activated left to right, now activates right to left (from RV to LV).
- This reversed septal activation means early forces point leftward.
- As a result, no Q waves appear in lateral leads (V5, V6). Image