left anterior fascicular block

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left anterior fascicular block2016-11-08T06:34:12+00:00

left anterior fascicular block

left anterior fascicular block image from New Medical Terms

left anterior fascicular block

CARDIOLOGY

An EKG/ECG finding (see above) defined as a QRS axis between –45º and –90º and a QRS duration of < 0.12 seconds in absence of left ventricular hypertrophy, inferior wall myocardial infarction and ventricular preexcitation of the baseline EKG. It is seen in about 4% of acute myocardial infarcts.

While LAFB has been considered a benign EKG finding, epidemiologic data suggest that it may be associated with an increased risk of atrial fibrillation, congestive heart failure, hypertensive heart disease, aortic valve disease, cardiomyopathies, myocardial fibrosis and death. 

References JAMA 2013; 309:1587-1588

http://en.wikipedia.org/wiki/Left_anterior_fascicular_block

http://www.learntheheart.com/ecg-review/ecg-topic-reviews-and-criteria/left-anterior-fascicular-block-review/

 

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