Left Bundle Branch Block

Left bundle branch block (LBBB) is a cardiac conduction abnormality seen on the electrocardiogram (ECG). In this condition, activation of the left ventricle is delayed, which results in the left ventricle contracting later than the right ventricle. The criteria to diagnose a left bundle branch block on the electrocardiogram: It should be noted that LBBB renders the ST segment of chest leads unreliable. The T wave should be deflected opposite the ... more

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  • LBBB
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