释义 |
intraventricular block (IV block) in·tra·ven·tric·u·lar block (IV block) (in'tră-ven-trik'yū-lăr blok) Delayed conduction within the ventricular conducting system or myocardium, including bundle-branch block, periinfarction blocks, the fascicular blocks, excitation, and the Wolff-Parkinson-White (preexcitation) syndrome; widens QRS duration in electrocardiography. |