Left Bundle Branch Block
4:09
Left Bundle Branch Block
280.1K viewsFeb 24, 2012
YouTube99Statesmen
A clear visual guide to differentiating Left Bundle Branch Block (LBBB) and Right Bundle Branch Block (RBBB) on ECG. Key features at a glance: ◾️ LBBB (Left Bundle Block): · Dominant S in V1 · Broad monophasic R in lateral leads (I, aVL, V5-6) · No Q waves laterally · QRS > 120ms ◾️ RBBB (Right Bundle Block): · RSR' pattern in V1-3 ("M-shaped") · Wide, slurred S wave in lateral leads · QRS > 120ms Essential for quick, accurate interpretation. This visual breaks it down. Save. Share. Know. ⚡✨ #Ca
0:21
A clear visual guide to differentiating Left Bundle Branch Block (LBBB) and Right Bundle Branch Block (RBBB) on ECG. Key features at a glance: ◾️ LBBB (Left Bundle Block): · Dominant S in V1 · Broad monophasic R in lateral leads (I, aVL, V5-6) · No Q waves laterally · QRS > 120ms ◾️ RBBB (Right Bundle Block): · RSR' pattern in V1-3 ("M-shaped") · Wide, slurred S wave in lateral leads · QRS > 120ms Essential for quick, accurate interpretation. This visual breaks it down. Save. Share. Know. ⚡✨ #Ca
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