Ronald Jay Kanter

1. We are interested in determining the long term effects of surgery for the Wolff-Parkinson-White Syndrome. This is being carried out through medical record evaluation and telephone survey of 75 individuals who were operated on for Wolff-Parkinson-White Syndrome before the age of 17 years. Specifically, we are interested in the incidence of recurrent or new arrhythmias, their educational experience, employability, history of childbearing, and current quality of life.

2. We are developing a simple diagnostic device to help identify young patients whose symptom of palpitations is casued by supraventricular tachycardia.

3. We are interested in evaluating the fate of the sinus node in children having congenital complete AV block. We have noted a few children who besides having congenital AV block, also have abnormalities of sinus node function.

4. We continue our participation in a multi-institution registry of patients </= 21 years of age who undergo catheter ablation of tachycardia substrates.

5. We are involved in an electrophysiology laboratory study investigating the efficacy of various ventilation modes to help stabilize catheters during EP testing. This involves the use of a commercial Global Positioning System technology (Endocardial Solutions, Inc.)to verify catheter positions.