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Updated: Jun 21, 2026

Robotic Ablation of Atrial Fibrillation
11:21

Robotic Ablation of Atrial Fibrillation

Published on: May 29, 2015

[Third degree atrioventricular block.]

E M Kojic, T Hardarson, N Sigfusson

    Laeknabladid
    |August 12, 2009
    PubMed

    Insights

    The prevalence of third degree atrioventricular block in the general population is low at 0.04%. Most cases were temporary, with underlying heart disease impacting prognosis more than the block itself.

    Area of Science:

    • Cardiology
    • Electrophysiology
    • Epidemiology

    Context:

    • Third degree atrioventricular block (AV block) is a serious condition disrupting cardiac conduction.
    • Previous studies focused on hospitalized or professional groups, limiting general population data.
    • Understanding prevalence in the general population is crucial for accurate risk assessment.

    Purpose:

    • To determine the prevalence of third degree AV block in a representative population sample.
    • To assess the prognostic significance of third degree AV block in the general population.

    Summary:

    • A prospective study of 18,912 individuals (33-79 years) found a 0.04% prevalence of third degree AV block.
    • The block was temporary in 64% of affected individuals.
    • Underlying heart disease was present in all cases and appeared to be a more significant prognostic factor than the AV block itself.

    Impact:

    • This study reveals a higher prevalence of third degree AV block in the general population than previously reported.
    • Findings suggest that underlying cardiac conditions are key determinants of prognosis.
    • Fewer individuals required pacemakers than anticipated, indicating a potentially less severe clinical course in some cases.
    Abstract

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