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A 27-year-old female asked:

can lafb cause tachycardia? is medication the first and/or best treatment option?

2 doctor answers2 doctors weighed in
Dr. Stephen Southard
Internal Medicine 15 years experience
Possibly: Left anterior fascicular block is blockage of one of the electrical branches that delivers electrical signals to part of the left ventricle. There aren't a lot of great studies but some small studies that suggest it is associated with increased risk of atrial fibrillation(which can be a form of tachycardia), hypertension, heart failure, and sudden cardiac death. There is no treatment.
Dr. Gabriel Purice
Internal Medicine 15 years experience
LAFB: if you mean left anterior fascicular block - then no. It does not cause tachycardia. But can be a sign of myocardial ischemia and may precede ventricular tachycardia in the setting of a myocaridal infarction.

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Last updated Jul 5, 2014

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