Left bundle branch block: Epidemiology, etiology, anatomic features, electrovectorcardiography, and classification proposal
| Autor: | Raimundo Barbosa-Barros, Marianne Penachini da Costa de Rezende Barbosa, Rodrigo Daminello-Raimundo, Kjell Nikus, Andrés Ricardo Pérez-Riera, Luiz Carlos de Abreu |
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| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty Bundle-Branch Block Vectorcardiography Magnetic Resonance Imaging Cine Review Article 030204 cardiovascular system & hematology Conduction disturbance Risk Assessment Severity of Illness Index Cardiac Resynchronization Therapy 03 medical and health sciences Electrocardiography 0302 clinical medicine Cardiac magnetic resonance imaging Physiology (medical) Internal medicine Epidemiology medicine Humans 030212 general & internal medicine Ventricular remodeling Ventricular mechanics Aged medicine.diagnostic_test Left bundle branch block business.industry General Medicine Middle Aged medicine.disease Prognosis Treatment Outcome Etiology Cardiology cardiovascular system Female Cardiology and Cardiovascular Medicine business |
| Zdroj: | Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc. 24(2) |
| ISSN: | 1542-474X |
| Popis: | In left bundle branch block (LBBB), the ventricles are activated in a sequential manner with alterations in left ventricular mechanics, perfusion, and workload resulting in cardiac remodeling. Underlying molecular, cellular, and interstitial changes manifest clinically as changes in size, mass, geometry, and function of the heart. Cardiac remodeling is associated with progressive ventricular dysfunction, arrhythmias, and impaired prognosis. Clinical and diagnostic notions about LBBB have evolved from a simple electrocardiographic alteration to a critically important finding affecting diagnostic and clinical management of many patients. Advances in cardiac magnetic resonance imaging have significantly improved the assessment of patients with LBBB and provided additional insights into pathophysiological mechanisms of left ventricular remodeling. In this review, we will discuss the epidemiology, etiologies, and electrovectorcardiographic features of LBBB and propose a classification of the conduction disturbance. |
| Databáze: | OpenAIRE |
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