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First Degree Heart Block Definition
Common names:
  • First Degree Heart Block
  • Heart Block First Degree
A person with first degree heart block has a delay in the electrical impulse that travels through the heart. Images

An electrical impulse stimulates the muscle fibers in the heart to contract. The impulse spreads through the heart in a very organized manner, so that the atria contract first, followed by the ventricles. First degree heart block causes a delay between the contraction of the atria, and the contraction of the ventricles.

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Last Updated: Sep 15, 2008  References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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