Arrhythmia Management Glossary
100 terms total — 4 showing — Last updated 15 Sep 2026
QRS complex QRS
The portion of an ECG representing ventricular depolarization, appearing as a series of upward and downward deflections.
VT storm
A life-threatening condition characterized by three or more episodes of sustained ventricular tachycardia within 24 hour...
VV timing
The programmable delay between right and left ventricular pacing in CRT devices to optimize cardiac resynchronization.
VVI pacing
Single-chamber pacemaker mode that paces and senses the ventricle only, with inhibited response to sensed ventricular ac...
WPW syndrome
Wolff-Parkinson-White syndrome, a pre-excitation disorder characterized by an accessory pathway that can cause supravent...