Category: ECG / Electrophysiology

Defibrillator is a device for delivering high energy direct current electric shocks in a controlled manner to correct abnormalities in cardiac rhythm.

An electrocardiograph records the electrical activity of the heart from the surface of the body. The recorded graph is called an electrocardiogram (ECG).

Cardiac pacemaker is a device meant to give regular electrical pulses to the heart when the normal pacemaker function of the heart is defective.

Cardiac resynchronization therapy (CRT) is being explored as an option for high operative risk moderate to severe functional mitral regurgitation.

Wide QRS tachycardia on Holter documented by Holter monitoring.

Right atrial infarction is more common than left atrial infarction, possibly because of the higher oxygen concentration in the left atrial blood.

Lewis lead is useful for recognition of P wave during wide QRS tachycardia when the P waves are usually obscured by the QRS complex or T wave.

KCNJ5 or the potassium inwardly-rectifying channel, subfamily J, member 5 is the gene involved in in congenital long QT syndrome 13 (LQTS13).

Long QT syndrome 13 (LQT13) has been described by Yang and associates in a large four generation Chinese family in 2010.

Twelve types of familial atrial fibrillation has been described in the OMIM (Online Mendelian Inheritance in Man) database.