High-Risk Nonclassical Long-QT Syndrome Genotypes: Spectrum of Genetic and Phenotypic Features

Affiliations

• ¹ Department of Medicine (A.A.), The University of British Columbia, Vancouver, Canada.
• ² Center for Cardiovascular Innovation (B.D., A.K., Z.L.), The University of British Columbia, Vancouver, Canada.
• ³ Division of Cardiology, Section of Cardiac Electrophysiology, Western University, London, ON, Canada (H.K.).
• ⁴ Children's Heart Center, BC Children's Hospital, Vancouver, Canada (S.S.).
• ⁵ Cardiovascular Genetics Center, Montreal Heart Institute and Faculty of Medicine, Université de Montréal, QC, Canada (R.T., M.T., J.C.-T.).
• ⁶ Division of Cardiology, Department of Pediatrics, University of Alberta Stollery Children's Hospital, Edmonton, Canada (J.A.).
• ⁷ Division of Cardiology, Queen Elizabeth II Health Sciences Center, Halifax, NS, Canada (D.L., M. Gardner).
• ⁸ Institut Universitaire De Cardiologie et De Pneumologie de Quebec, Laval University, Canada (C. Steinberg).
• ⁹ University of Ottawa Heart Institute, ON, Canada (S.H., M. Green).
• ¹⁰ Division of Pediatric Cardiology, Centre hospitalier universitaire Sainte-Justine, Université de Montreal, QC, Canada (A.F.).
• ¹¹ Royal Jubilee Hospital, Victoria, BC, Canada (L.A., R.L.).
• ¹² Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Canada (S.K.).
• ¹³ Population Health Research Institute, Hamilton, ON, Canada (J.R., J.H.).
• ¹⁴ Unity Health, St. Michael's Hospital, University of Toronto, ON, Canada (P.A.).
• ¹⁵ Department of Medicine, Queen's University, Kingston, ON, Canada (C. Simpson).
• ¹⁶ St. Boniface Hospital, University of Manitoba, Winnipeg, Canada (C. Seifer).
• ¹⁷ Libin Cardiovascular Institute, University of Calgary, AB, Canada (E.I.).
• ¹⁸ Division of Cardiology, McGill University Health Center, Montreal, QC, Canada (J.J.).