What causes "intraventricular conduction delay?"?!
Question:
What causes "intraventricular conduction delay?"?
Answers:
Several things can cause intraventicular conduction delay such as: Right atrial enlargement, Left atrial enlargement, Left ventricular hypertrophy, Right ventricular hypertrophy, Right bundle branch block, Left bundle branch block, Fascicular blocks or hemiblocks, Left anterior-superior fascicular block or hemiblock, Left posterior fascicular block or hemiblock, Ventricular preexcitation.
Nonspecific intraventricular conduction defect is used when no characteristic pattern of right or left bundle branch block exists, although QRS duration is prolonged. Such abnormalities are frequently seen with previous myocardial infarction and scar formation. Prolonged QRS duration without a specific bundle branch block pattern can also occur due to intramyocardial conduction slowing from class I antiarrhythmic drugs, left ventricular hypertrophy and hyperkalemia.
Click this link to read on each one of the above I listed.
http://www.americanheart.org/presenter.j...