intraventricular conduction

in·tra·ven·tric·u·lar con·duc·tion

conduction of the cardiac impulse through the ventricular myocardium, represented by the QRS complex in the electrocardiogram. HR conduction time is from the onset of the first high frequency component of the His bundle electrogram to the onset of the QRS complex of the surface electrocardiogram (normally 43 ± 12 msec); HV conduction time is from the onset of the first high-frequency component of the His bundle electrogram to the onset of the ventricular electrogram (normally approximates the HR interval but may be a little shorter).
Farlex Partner Medical Dictionary © Farlex 2012

in·tra·ven·tric·u·lar con·duc·tion

(in'tră-ven-trik'yū-lăr kŏn-dŭk'shŭn)
Transference of the cardiac impulse through the ventricular myocardium, represented by the QRS complex in the electrocardiogram.
Synonym(s): ventricular conduction.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Among his topics are leads and the normal electrocardiogram, heart rate and axis, intraventricular conduction defects, rhythm disturbances, and pediatric electrocardiography.
Others include ventricular septal defect, single atrium, tetralogy of Fallot, coarctation of aorta and anomalous pulmonary venous return.4 This condition is also associated with various conducting system abnormalities such as tachyarrhythmias (supraventricular tachycardias, atrial fibrillation/flutter) or bradyarrhythmias (atrioventricular and intraventricular conduction blocks).5,6 The most easily available modality to diagnose PLSVC is transthoracic echocardiography.
Mental stress could lead to augmentation of sympathetic system, catecholamine release which can lead to increase in the velocity of conduction in atria and influences on intraventricular conduction time by changing autonomic balance, which can lead to reduced QRS duration.
It can cause non-specific changes on the electrocardiogram, such as sinus tachycardia, QT prolongation and intraventricular conduction disturbances.
Ischemic injury can produce conduction block at any level of the atrioventricular and intraventricular conduction system.
His electrocardiography (ECG) demonstrated a sinus rhythm with an intraventricular conduction disturbance, an atypical left bundle branch block, and a QRS interval of 160 ms.
Intra-atrial and intraventricular conduction disturbances each occur in approximately 15% of patients with thyrotoxicosis [6].
In the index case, we noted intraventricular conduction defect manifesting as slurring of QRS in chest leads III and aVL.
Atrial stimulation protocol revealed no ventricular preexcitation but showed aberrant intraventricular conduction with both right and left bundle branch block (RBBB, LBBB) patterns.
Despite treatment with high-dose glucocorticoids, she developed intraventricular conduction delay within 24 hours, followed by complete heart block.
Echocardiography (ECG) shows different changes in the form of sinus tachycardia, bundle branch blocks, intraventricular conduction defect, atrial and ventricular premature complexes, atrial fibrillation, ventricular tachyarrhythmia, ST segment elevation or depression, and T wave inversion.

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