Weilun Quan, PhD

Electrocautery-Induced Ventricular Tachycardia and Fibrillation during Device Implantation and Explantation

05/03/2008

Electrocautery has long been described to generate electromagnetic interference (EMI) and oversensing by implanted pacemakers and defibrillators. Electrocautery is commonly used during surgical procedures involving implantation and...

Electrocautery has long been...

05/03/2008

EP Lab Digest

A Study of Carotid Sinus Massage and Head-Up Tilt Table Testing in Patients with Syncope and Near-Syncope

05/03/2008

Weilun Quan , PhD;

Friederike von zur Muhlen , MD;

David J. D'Agate , DO;

Todd J. Cohen , MD, FACC, FHRS;

An abnormal response on HUT was elicited in 18% of patients and carotid sinus syndrome was diagnosed in 13%. Mild carotid sinus sensitivity was seen in 14%. Both tests were positive in 4 patients (3%; 11% of patients with a positive test)....

An abnormal response on HUT was...

05/03/2008

EP Lab Digest

Electrocautery-Induced Ventricular Tachycardia and Fibrillation during Device Implantation and Explantation

08/01/2008

Todd J. Cohen , MD, FACC, FHRS;

Weilun Quan , PhD;

Alexandru Mitrache , PA, RPAC;

Ronald Lo , MD;

Electrocautery has long been...

08/01/2008

Journal of Invasive Cardiology

Electrophysiology Corner

A Study of Carotid Sinus Massage and Head-Up Tilt Table Testing in Patients with Syncope and Near-Syncope

08/01/2008

Friederike von zur Muhlen , MD;

David J. D'Agate , DO;

Weilun Quan , PhD;

Todd J. Cohen , MD, FACC, FHRS;

In a patient who presents with syncope of unknown origin, a thorough history can sometimes provide clues suggesting postural neurally mediated syncope or other forms of neurally mediated syncope, such as carotid sinus syndrome or micturition...

In a patient who presents with...

08/01/2008

Journal of Invasive Cardiology

Electrophysiology Corner

A Comparison of a Single-Stage Isoproterenol Tilt Table Test Protocol with Conventional Two-Staged Tilt Protocol in Patients wit

08/01/2008

Weilun Quan , PhD;

Thomas Chengot , BA, DO;

Marilyn Chengot ;

Sheila Catania , RN;

Todd J. Cohen , MD, FACC, FHRS;

Head Up Tilt Table testing (HUTT) is often associated with a lengthy two-staged protocol (with and without isoproterenol). Recently, Shen and colleagues described a single-stage isoproterenol HUTT.1 The purpose of this study was to compare...

Head Up Tilt Table testing...

08/01/2008

Journal of Invasive Cardiology

Electrophysiology Corner

A Blind Comparison of Four Non-Invasive Twelve-Lead Electrocardiogram Algorithms for Predicting Susceptibility to Ventricular Ta

08/01/2008

Cindy Quan ;

Bassiema Ibrahim , MD;

Simcha Pollack , PhD;

Weilun Quan , PhD;

Todd J. Cohen , MD, FACC, FHRS;

QT dispersion (QTD) has been proposed as an indicator of risk for ventricular tachyarrhythmias (VT) in different clinical settings (long QT syndrome,2,3 congestive heart failure4 and post-myocardial infarction5–9). However, a major limitation...

QT dispersion (QTD) has been...

08/01/2008

Journal of Invasive Cardiology