hemiblock

(redirected from Left Anterior Hemiblock)
Also found in: Dictionary, Acronyms.
Related to Left Anterior Hemiblock: Bifascicular block

hemiblock

 [hem´e-blok″]
failure in conduction of electrical 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 (inferior) division. Hemiblock accompanied by an anterior wall myocardial infarction is a particularly serious finding.
left anterior hemiblock a conduction block of the anterior superior division of the left bundle branch; left anterior hemiblock with acute anterior wall myocardial infarction is a particularly serious finding.

divisional block

arrest of the impulse in one of the assumed two main divisions of the left branch of the atrioventricular bundle; that is, in either the anterior (superior) division or the posterior (inferior) division.
Synonym(s): hemiblock

hemiblock

(hĕm′ĭ-blŏk′)
n.
Arrest of the cardiac electrical impulse in either the anterior or the posterior division of the left branch of the bundle of His.

hem·i·block

(hem'ē-blok)
Arrest of the impulse in one of the two main divisions of the left branch of the bundle of His; i.e., in either the anterior (superior) division or the posterior (inferior) division.
References in periodicals archive ?
Left axis deviation and left anterior hemiblock among 8, 000 Japanese- American men.

Full browser ?