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Updated: Sep 23, 2025
08:10
Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
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Association between complete right bundle branch block and atrial fibrillation development
Fu-Tao Zhang1, Xiao-Jie Liu1, Dan-Qing Zhao1
1Department of Cardiology, Henan University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, China.
Summary
Complete right bundle branch block (CRBBB) is linked to a higher risk of developing atrial fibrillation (AF). This finding is significant for patients with cardiovascular diseases, highlighting CRBBB as a key indicator for AF development.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Diagnostics
Background:
- Complete right bundle branch block (CRBBB) is a known predictor of atrial fibrillation (AF) recurrence post-pulmonary vein isolation.
- The relationship between CRBBB and the initial development of AF remains less understood.
Purpose of the Study:
- To investigate the association between CRBBB and the incidence of AF in a hospitalized patient cohort.
- To identify CRBBB as a potential risk factor for new-onset AF.
Main Methods:
- A retrospective study involving 2639 patients was conducted.
- CRBBB was defined by specific ECG criteria including prolonged QRS duration (≥120 ms) and characteristic waveforms in leads V1, V2, I, and V6.
- Multivariate logistic analysis was employed to assess associations with AF development.
Main Results:
- CRBBB was identified in 1.5% of the study population.
- Patients with CRBBB showed a significantly higher prevalence of AF compared to those without CRBBB (22.5% vs. 7.2%; p=0.001).
- CRBBB was independently associated with AF development (OR, 3.329; p=0.009), alongside other factors like age, valvular heart disease, and left atrial diameter.
Conclusions:
- Complete right bundle branch block is significantly associated with the development of atrial fibrillation in hospitalized patients with cardiovascular diseases.
- CRBBB may serve as an important clinical marker for predicting AF onset in this population.
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