Second degree AV block epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ahmed Elsaiey, MBBCH [2]

Overview

There have not been large population-based studies on the prevalence of Mobitz type I or II atrioventricular blocks. At this time, there is no associated age, racial, or gender correlation. AV block is sometimes seen in athletes and in patients with congenital heart disorders. In the United States, the prevalence of second-degree AV block is believed to be 3 in 100,000 individual. Men and women are affected equally by second degree AV block.

Epidemiology and demographics

Prevalence

  • In the United States, the prevalence of second-degree AV block is believed to be 3 in 100,000 individual.[1]
  • Nearly 3% of patients with underlying structural heart disease develop some form of second-degree AV block. The male-to-female ratio of second-degree AV block is 1:1.

Gender

  • Men and women are affected equally by second degree AV block.

References

  1. Zehender M, Meinertz T, Keul J, Just H (1990). "ECG variants and cardiac arrhythmias in athletes: clinical relevance and prognostic importance". Am Heart J. 119 (6): 1378–91. doi:10.1016/s0002-8703(05)80189-9. PMID 2191578.

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