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Tachycardia-dependent bundle branch block

3:19

Peter Clemmensen, C3 2019 – Managing Right Bundle Branch Block

2:04

Affect of Left Ventricular Conduction Delay on Cardiovascular Mortality

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Left Bundle Branch Block (Medical Condition)

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ECG in a Minute: LBBB and LAD

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2min tip Sgarbossa Dec 2018

A tachycardia-dependent bundle branch block (TDBBB) is a defect in the conduction system of the heart, and is distinct from typical bundle branch blocks due to its reliable, reproducible onset related to an increase in the rate of cardiac contraction. Tachycardia-dependent bundle branch block can prevent both ventricles from contracting efficiently and can limit the cardiac output of the heart.
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  • Anatomy