hemiblock /hemi·block/ (-blok) failure in conduction of cardiac impulse in either of the two main divisions of the left branch of the bundle of His; the interruption may occur in either the anterior (superior) or posterior division.
hemiblock,
hem·i·block (h m  -bl k )n. Arrest of the cardiac impulse in one of the two main divisions of the left branch of the atrioventricular trunk. |
hemiblock,
a failure to conduct a cardiac impulse down one division of the left bundle branch, such as an anterior superior or a posterior inferior hemiblock.
hemiblock
failure in conduction of cardiac impulse in either of the two main divisions (fascicles) of the left branch of the bundle of His; the interruption may occur in either the anterior or posterior division. Called also fascicular block.
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