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[2-year survival in persons with bundle branch block]
1Health Centre, Varvarin.
Insights
Mortality in bundle branch block patients was 6.26%. Complete left bundle branch block, particularly in men, showed the highest mortality rate, significantly differing from complete right bundle branch block.
Area of Science:
- Cardiology
- Clinical Medicine
- Epidemiology
Context:
- Bundle branch block (BBB) affects cardiac conduction.
- Understanding BBB subtypes and their prognostic implications is crucial.
Purpose:
- To investigate the mortality rates associated with different types of bundle branch block.
- To identify specific BBB patterns associated with increased mortality risk.
Summary:
- A study of 335 patients with bundle branch block revealed a 6.26% mortality rate over two years.
- Patients with complete left bundle branch block (CLBBB) exhibited the highest mortality (15.3%), especially men (24.1%).
- Mortality in CLBBB was significantly higher than in complete right bundle branch block (CRBBB) (p < 0.01).
Impact:
- Findings highlight CLBBB as a significant risk factor for mortality.
- This data can inform risk stratification and patient management strategies for BBB.
- Further research into sex-specific mortality differences in CLBBB is warranted.
Abstract:
A group of 335 patients was examined. There were 172 men (average age 60.2 +/- 13.3 years) and 163 women (average age 59.3 +/- 11.3 years) with bundle branch block. In the period of two years 21 patients (6.26%) died. The greatest mortality was noted in patients with complete left bundle branch block (15.3%), especially in men (24.1%). The difference between complete left bundle branch block and complete right bundle branch block (chi 2 = 6.73; p < 0.01) was statistically significant. There was no significant difference in the mortality of patients with bifascicular heart block and trifascicular heart block in relation to the mortality of patients with complete right bundle branch block (chi 2 = 0.81; p > 0.05).