hemiblock


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Related to hemiblock: fascicular 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

/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

(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.

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.

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.

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.
References in periodicals archive ?
An electrocardiogram showed a left anterior hemiblock and a first-degree atrioventricular block.
Patients may exhibit hemiblock or LBBB, a total loss of conduction in the left main branch bundle.
11 is seen in hemiblocks of conduction or hypertrophy.
Electrocardiogram (ECG) showed mild sinus bradycardia, left anterior hemiblock, and left atrial dilatation.
The commonest cause of Left axis deviation is left anterior hemiblock.
More frightening yet was correctly identifying right and left bundle branch blocks or left anterior and posterior hemiblocks.