William F. DeForge, PhD, CCDS

Case Study

Near-Fatal Episode of Polymorphic Ventricular Tachycardia Captured on Intracardiac Electrogram in a Single Chamber Pacemaker

08/30/2011

Jaclyn Conelius , PhD, FNP-BC, FHRS, APRN-BC, CCDS;

William F. DeForge , PhD, CCDS;

William F. DeForge, PhD, CCDS, and Jaclyn Conelius, PhD, APRN-BC, CCDS, describe how crucial proper programming of stored intracardiac electrograms can be when trying to associate specific cardiac symptoms or events with a stored record.

William F. DeForge, PhD, CCDS,...

08/30/2011

EP Lab Digest

Programming of the Individual Phases of the Defibrillation Waveform to Achieve an Adequate Defibrillation Safety Margin: Utilization of a Surrogate Cardiac Membrane Time Constant

03/23/2012

Jaclyn Conelius , PhD, FNP-BC, FHRS, APRN-BC, CCDS;

William F. DeForge , PhD, CCDS;

Achieving an adequate defibrillation safety margin can sometimes be troublesome. Today’s implantable defibrillators allow for the programming of vector and polarity to overcome some of these issues. Some devices also allow the programming of...

Achieving an adequate...

03/23/2012

EP Lab Digest

Cover Story

Do Mahaim Arrhythmias Cause Mayhem in the Lab?

02/01/2015

Diana Augustine , RN, CCRN;

Lynn Butner , RN, CCRN;

Michael Pittaro , MD;

William F. DeForge , PhD, CCDS;

Mahaim fibers can lead to wide complex tachycardias with a LBBB pattern that are amenable to RF ablation. This type of arrhythmia should be suspected when the presenting ECG reflects wide complex tachycardia and a left bundle branch pattern.

Mahaim fibers can lead to wide...

02/01/2015

EP Lab Digest