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Left Bundle Branch Block: Characterization, Definitions, and Recent Insights into Conduction System Physiology.

PMID: 34689894 (view PubMed database entry)
DOI: 10.1016/j.ccep.2021.07.005 (read at publisher's website )

Margarida Pujol-López, José M Tolosana, Gaurav A Upadhyay, Lluís Mont, Roderick Tung,

Left bundle branch block (LBBB) is not just a simple electrocardiogram alteration. The intricacies of this general terminology go beyond simple conduction block. This review puts together current knowledge on the historical concept of LBBB, clinical significance, and recent insights into the pathophysiology of human LBBB. LBBB is an entity that affects patient diagnosis (primary conduction disease, secondary to underlying pathology or iatrogenic), treatment (cardiac resynchronization therapy or conduction system pacing for heart failure), and prognosis. Recruiting the left bundle branch with conduction system pacing depends on the complex interaction between anatomy, site of pathophysiology, and delivery tools.

Card Electrophysiol Clin (Cardiac electrophysiology clinics)
[2021, 13(4):671-684]

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