What is the prevalence of third-degree atrioventricular (AV) block?

Updated: Jul 05, 2018
  • Author: Akanksha Agrawal, MBBS; Chief Editor: Jeffrey N Rottman, MD  more...
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Answer

In the United States, the prevalence of third-degree atrioventricular (AV) block (complete heart block) is 0.02%. Worldwide, the prevalence of third-degree AV block is 0.04%. [16]

The incidence of AV conduction abnormalities increases with advancing age, resembling the age-related incidence of ischemic heart disease. An early peak in incidence occurs in infancy and early childhood due to congenital complete AV block, which is sometimes not recognized until childhood or even adolescence.


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