Arrhythmia Management Glossary

Single-chamber pacing mode where the pacemaker stimulates only the atrium and senses only atrial activity.

A medical procedure that destroys abnormal heart tissue causing arrhythmias using heat, cold, or radiofrequency energy.

Ventricular escape rhythm occurring at rates of 50-120 bpm, commonly seen during reperfusion after myocardial infarction...

Short-acting antiarrhythmic medication used to terminate supraventricular arrhythmias by temporarily blocking AV conduct...

A class III antiarrhythmic medication with multi-channel blocking properties used for various atrial and ventricular arr...

A class of medications used to suppress or prevent abnormal heart rhythms by modifying cardiac electrical activity.

An irregular heart rhythm characterized by rapid, chaotic electrical activity in the heart's upper chambers (atria).

Legacy term for implantable cardioverter-defibrillator, emphasizing the device's automatic detection and treatment capab...

The atrioventricular node, a specialized cardiac tissue that controls electrical conduction between the atria and ventri...

Atrioventricular nodal reentrant tachycardia, a common supraventricular tachycardia involving a reentrant circuit within...

Ventricular tachycardia characterized by alternating QRS axis, creating a distinctive ECG pattern of beat-to-beat morpho...

Cardiac resynchronization therapy using leads in both ventricles to coordinate ventricular contraction in heart failure...

An abnormally slow heart rhythm, typically below 60 beats per minute, that may require pacemaker intervention.

A conduction abnormality where electrical impulses are delayed or blocked in one of the heart's bundle branches.

A rapid pacing technique used to terminate tachyarrhythmias by delivering short trains of electrical stimuli faster than...

The minimum electrical energy required from a pacemaker to consistently stimulate myocardial contraction.

A pacing therapy using biventricular stimulation to improve cardiac function in patients with heart failure and conducti...

A medical procedure that restores normal heart rhythm by delivering electrical shocks or medications to the heart.

A minimally invasive procedure using radiofrequency energy or cryotherapy delivered through cardiac catheters to destroy...

The inability of the heart rate to increase appropriately with physiological demands, often indicating sinus node dysfun...

Mathematical simulation techniques used to predict arrhythmia mechanisms and optimize ablation strategies in cardiac ele...

Electrical conduction that occurs partially within the specialized conduction system but fails to reach the surface ECG,...

Technology in ablation catheters that measures the perpendicular force applied against cardiac tissue during energy deli...

Cardiac resynchronization therapy with defibrillator capability, a device combining biventricular pacing with ICD functi...