Comorbidities of Chronic Complete Right Bundle Branch Block and Correlations With Coronary Angiographic Findings

Abstract Background This is a prospective, observational review of medical records to investigate the associated comorbidities and angiographic anatomy in patients with chronic right bundle branch block (RBBB). Methods The analyses of 32,345 consecutive electrocardiograms (EKGs) between October 2010...

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Bibliographic Details
Published in:The American journal of the medical sciences 2016, Vol.351 (1), p.97-100
Main Authors: Arham, Ahmad, MD, Bhardwaj, Ravindra, MD, MPH, Jain, Abnash, MD, Dar, Imran, MD, Jain, Sumesh, MD, Warden, Bradford, MD, Gharib, Wissam, MD, Gharib, Walid, MD
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Angiogram
Bundle-Branch Block - epidemiology
Bundle-Branch Block - etiology
Comorbidity
Coronary Angiography
Coronary Artery Disease - epidemiology
Coronary Artery Disease - etiology
Electrocardiogram
Electrocardiography
Female
Humans
Internal Medicine
Male
Middle Aged
Prospective Studies
Retrospective Studies
Right bundle branch block
West Virginia - epidemiology
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Summary:Abstract Background This is a prospective, observational review of medical records to investigate the associated comorbidities and angiographic anatomy in patients with chronic right bundle branch block (RBBB). Methods The analyses of 32,345 consecutive electrocardiograms (EKGs) between October 2010 and January 2012 revealed 583 patients with RBBB. The common comorbidities associated with RBBB were hypertension (82%), diabetes (42%), coronary artery disease (CAD) (44%), valvular heart disease (aortic — 16% and mitral — 17%) and pulmonary disease (33%). Demographic data including age, sex, EKG and associated comorbidities were analyzed from the medical records. Coronary angiograms within 6 months of EKG in patients with RBBB were available for 184 patients and were accordingly analyzed for significant obstructive CAD. Results In all, 33 patients had single-vessel disease, 52 patients had 2-vessel disease, and 87 patients had multivessel disease whereas 12 patients had no significant disease. Left anterior descending artery was the most frequent vessel involved (72%) followed by left circumflex (58%) and right coronary artery (53%). Conclusions In conclusion, in chronic RBBB, wherever the angiograms were available, CAD predominantly involved left anterior descending artery. Most common associated comorbidities in chronic RBBB were systemic hypertension and CAD.
ISSN:0002-9629
1538-2990
DOI:10.1016/j.amjms.2015.10.005