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This profile was last updated on 3/18/16  and contains information from public web pages and contributions from the ZoomInfo community.

Dr. John Lewis Sapp

Wrong Dr. John Lewis Sapp?

Attending Staff

Phone: (902) ***-****  HQ Phone
Nova Scotia Health Research Foundation
1660 Hollis Street 9Th Floor , Suite 905
Halifax , Nova Scotia B3J 1V7

Company Description: NSHRF is committed to working collaboratively with the health research community and other stakeholders. Our shared goal is to invest the province's health research...   more

Employment History

Board Memberships and Affiliations

  • Member
    Cardiovascular Research Group
  • Active Medical Staff Member
    N.S. Rehabilitation Center
  • Member
    Medical Integration Committee for Physical Medicine and Rehabilitation of the Capital Health District


  • Cardiology
    Dalhousie graduate and former holder of the William M. Sobey Fellowship
  • medicine
    Dalhousie University
  • MD
34 Total References
Web References
Dr. John Lewis ... [cached]
Dr. John Lewis Sapp
Dr. Sapp is a Clinical Cardiac Electrophysiologist at the QEII Health Sciences Centre in Halifax, where he serves as Director of the Heart Rhythm Service and Director of the Heart Rhythm Laboratory. He is a Professor of Medicine at Dalhousie University where he is also cross-appointed to the Department of Physiology and Biophysics within the Faculty of Medicine. Clinical and research interests include methods for improving cardiac mapping and catheter ablation, management of ventricular tachycardia, and studies to better understand the relationship between heart failure and heart rhythm abnormalities.
Dr. Sapp is leading a multicentre multinational clinical trial of catheter ablation for ventricular tachycardia, one of the most dangerous heart rhythm abnormalities.
Dr. John ... [cached]
Dr. John Sapp Professor
Dalhousie Medical Research Foundation - Dr. John Sapp [cached]
Dr. John Sapp Dalhousie Medical Research Foundation - Dr. John Sapp
Dr. John Sapp Cardiologist/ Professor Division of Cardiology Dalhousie Medical School
Home » Molly Appeal for Cardiovascular Research » About Us » Faces of Molly » Dalhousie Medical School Researchers » Cardiovascular Researchers » Dr. John Sapp
Dr. John Sapp
Sapp, Dr. John 1429895969110
Cardiac electrophysiologist, Dr. John Sapp is leading long-term international studies to see if a procedure known as catheter ablation works better than aggressive drug therapy for treating ventricular tachycardia.
"Catheter ablation is an invasive procedure that carries serious risks," notes Dr. Sapp, a professor in Dalhousie Medical School's Division of Cardiology. "However, the best drugs for regulating heart rhythm don't always work and may damage the lungs, liver, skin and thyroid. The research will reveal which is the safest and most effective way to reduce shocks and prevent sudden death, in which circumstances.
At the same time, Dr. Sapp is pioneering new techniques and instruments to make catheter ablation safer and more effective. The procedure involves inserting a thin wire into the heart through a blood vessel, to deliver a surge of energy that repairs the electrical short circuit.
"The challenge with ablation is to pinpoint the exact location of the short circuit and deliver the right amount of energy," says Dr. Sapp. "Too little won't fix the problem; too much can damage surrounding tissues."
Dr. Sapp and his colleagues are pioneering a non-invasive technique called body-surface mapping, which uses electrodes on the skin to find the precise location of the short circuit. He is also working with a commercial partner to introduce a catheter he has co-invented that repairs short circuits so deep inside the heart muscle that standard technology cannot reach them.
Dalhousie Medical Research Foundation - Fellowships [cached]
Cardiac electrophysiologist Dr. John Sapp spent two years at Harvard-affiliated Brigham and Women's Hospital in Boston, treating post-heart-attack cardiac arrhythmias. Upon his return to Dalhousie and Capital Health in 2003, he began a research program in 'body-surface mapping.' This technique pinpoints the location of scar tissue causing the arrhythmia, improving the speed and accuracy of corrective surgery.
"Heart rhythm problems can strike ... [cached]
"Heart rhythm problems can strike anybody-from young people with healthy hearts, to those with some of the most severe forms of heart disease," says Dr. John Sapp, director of Heart Rhythm Service and Laboratory at Capital Health's Division of Cardiology.
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