Left Bundle Branch Block Flashcards
1
Q
LBBB features
A
QRS > 120 ms I, aVL, V5, V6= NO Q waves LAD Lateral leads: Tall R waves V1-V3= deep S waves (WILLIAM) V1- dominant S wave I, aVL, V5, V6= broad mono phasic R
2
Q
LBBB associated features
A
Appropriate discordance
poor R wave progression chest leads
LAD
3
Q
LBBB Causes
A
AMI Anterior AMI HTN Aortic Stenosis Dilated cardiomyopathy Hyperkalemia Digoxin toxicity Primary degenrative dz
