Category Archives: Electrophysiology

Myocardial edema the cause of Wellens’ ECG pattern?

Dynamic T-wave inversion in the anterior leads known as Wellens’ ECG (electrocardiogram) pattern can be seen in conditions with reversible left ventricular dysfunction (stunned myocardium) of either ischemic [..]

Electrophysiology

Cardiac resynchronization therapy (CRT) – heart failure device therapy

What is the role for devices in heart failure management? All patients need optimal pharmacological therapy and life style modifications. But in a small subset, there is a [..]

Electrophysiology

Familial sick sinus syndrome: SSS1, SSS2 and SSS3

Sick sinus syndrome 1 (SSS1) Sick sinus syndrome 1 (SSS1) is transmitted in autosomal recessive mode. It is also known as autosomal recessive sick sinus syndrome and congenital [..]

Electrophysiology

Prevalence of cervical spondylosis among interventional electrophysiologists

A recent study by David Birnie and associates from Canada [Prevalence and Risk Factors for Cervical and Lumbar Spondylosis in Interventional Electrophysiologists. Journal of Cardiovascular Electrophysiology. 2011; 22:957–960] [..]

Angiography and Interventions, Electrophysiology

Ninth gene for Brugada syndrome (BrS9) identified?

The eight eight previously known Brugada syndrome (BrS) susceptibility genes are [three sodium channel(SCN) genes, two potassium channel(KCN) genes, two calcium channel(CACN) genes and one glycerol-3-phosphate dehydrogenase(GPD) 1-like [..]

Electrophysiology

Reel syndrome vs pacemaker twiddler syndrome

Pacemaker twiddler syndrome is characterized by coiling of the pacemaker lead due to rotation of the pulse generator of the pacemaker system along its long axis. This is [..]

Electrophysiology

Real time loop recorder with telemonitoring

Recent advances in communication devices and electrocardiographic technology have enabled real time loop recorder with telemonitoring. Leshem-Rubinow E and colleagues from Department of Cardiology, Tel-Aviv Sourasky Medical Center, [..]

Electrophysiology

AF ablation during therapeutic warfarin levels

Conventionally, invasive procedures are undertaken by switching over from warfarin to unfractionated heparin to have a better control over bleeding. Santangeli P and associates [Ablation of Atrial Fibrillation [..]

Electrophysiology

Programmed stimulator for EP study

Programmed stimulator for electrophysiology (EP) study is used to give pacing at particular rates and protocols as needed. The pacing output is usually twice the diastolic threshold for [..]

Electrophysiology

AV interval optimization in CRT

The aim of AV (atrioventricular) interval optimization in CRT (cardiac resynchronization therapy or biventricular pacing) is to prevent too early or too late atrial contraction. Too late an [..]

Electrophysiology