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Vol. 151. Issue 10.
Pages 402-411 (November 2018)
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Vol. 151. Issue 10.
Pages 402-411 (November 2018)
Review
Right bundle branch block and cardiovascular morbidity and mortality in healthy patients
Bloqueo de rama derecha y morbimortalidad cardiovascular en pacientes sanos
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Marina Alventosa-Zaidina,
Corresponding author
, Carme Roca Saumellb, Josep Brugada Terradellasc
a EAP El Bon Pastor, Barcelona. Institut Català de la Salut, Barcelona, Spain
b EAP El Clot, Barcelona, Institut Català de la Salut, Universitat de Barcelona, Barcelona, Spain
c Institut Clínic Cardiovascular, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
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Table 1. Characteristics of the studies.
Table 2. Diagnostic criteria and cardiovascular morbidity and mortality results.
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Abstract

The clinical significance of a right bundle branch block (RBBB) in an asymptomatic adult without evidence of cardiovascular disease is controversial. To establish the relationship between the appearance of the RBBB and the increase of cardiovascular morbidity and mortality in healthy patients, we have carried out a literature review of documents available until September 2017 through a systematic search on the Pubmed database, Cochrane library and a manual search of the mentioned literature and related articles. From the 29 articles included in the study sample, eight showed mortality and 16 morbidity outcomes. An increase of risk of death is observed is eight articles and an increase of cardiovascular events is observed in 11 articles. The most recent publications suggest that the appearance of an RBBB in healthy individuals should not be underestimated, thus further studies are needed to analyse the type of follow-up that should be carried out in these patients.

Keywords:
Right bundle branch block
Cardiovascular morbidity and mortality
Resumen

La significación clínica que tiene un bloqueo de rama derecha (BRD) en los pacientes asintomáticos sin evidencia de patología cardiovascular conocida es fuente de controversia. Para establecer la relación entre la aparición del BRD y el aumento de morbimortalidad cardiovascular en pacientes sanos se realizó una revisión bibliográfica de los artículos existentes hasta septiembre de 2017, a través de la búsqueda sistemática en PubMed, Cochrane y búsqueda manual de la bibliografía citada y artículos relacionados. De las 29 publicaciones que cumplían los criterios de inclusión, 8 mostraron resultados de mortalidad y 16 de morbilidad. En 8 artículos se observó un aumento de riesgo de muerte y en 11 de eventos cardiovasculares. Las publicaciones revisadas sugieren que la presencia de BRD en pacientes sanos no es irrelevante. Se necesitan más estudios que analicen qué tipo de seguimiento se debería realizar en estos pacientes.

Palabras clave:
Bloqueo de rama derecha
Morbimortalidad cardiovascular

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