1,686
Participants
Start Date
October 3, 2019
Primary Completion Date
December 31, 2025
Study Completion Date
December 31, 2025
SyncAV programmed ON
For those subjects randomized to SyncAV programmed ON, sites will measure QRS duration with the subject's intrinsic rhythm (pacing OFF), at BiV pacing nominal settings, with various SyncAV programmed offsets, and at LV first 30 ms, RV first 30 ms and LV-only pacing with optimal SyncAV offsets. The site will then program the subject's device using the SyncAV offset that provided the narrowest QRS duration.
Fixed AV delay
For those subjects randomized to the fixed AV delay arm, sites will measure QRS duration with the subject's intrinsic rhythm (pacing OFF) and at BiV pacing nominal settings. Sites will then program the subject's device using BiV pacing nominal settings.
Universitätsklinik Graz, Graz
Phramongkutklao Hospital, Bangkok
New York Presbyterian Brooklyn Methodist Hospital, Brooklyn
King Faisal Specialist Hospital (KFSH), Riyadh
University of Pittsburgh Medical Center, Pittsburgh
Sentara Norfolk General Hospital, Norfolk
Medical University of South Carolina, Charleston
Piedmont Heart Institute, Atlanta
Emory University Hospital, Atlanta
CHU Rangueil Toulouse, Toulouse
Shands at the University of Florida, Gainesville
Heart Rhythm Solutions, Hollywood
Heart Center Research, LLC., Huntsville
Baptist Health Lexington, Lexington
Keimyung University Dongsan Medical Center, Daegu
The Toledo Hospital, Toledo
Cleveland Clinic Foundation, Cleveland
Sparrow Clinical Research Institute, Lansing
Iowa Heart Center, West Des Moines
Washington University School of Medicine, St Louis
Mater Dei Hospital, Bari
Azienda Ospedaliera Di Venere, Carbonara
Hightower Clinical, Oklahoma City
CHI St. Luke's Health Baylor College of Medicine Med. Ctr., Houston
Memorial Katy Cardiology Associates, Houston
Heart Rhythm Associates, Shenandoah
South Texas Cardiovascular Consultants, San Antonio
Colorado Heart & Vascular, P.C., Lakewood
Arizona Cardiovascular Research Center, Phoenix
HonorHealth, Scottsdale
Azienda Ospedaliera Universitaria MaterDomini, Catanzaro
Comprehensive Cardiovascular, Bakersfield
Cardiovascular Consultants Heart Center, Fresno
Hopital Henri Mondor, Créteil
CHR de La Reunion - Site du CHFG, Saint-Denis
Tianjin Chest Hospital, Tianjin
Sir Run Run Shaw Hospital, Hangzhou
Care Institute of Medical Sciences, Ahmedabad
Asian Institute of Gastroenterology (AIG) Hospital, Hyderabad
Apollo Hospitals, Bangalore, Bangalore
Narayana Institute of Cardiac Sciences, Bommasandra, Bangalore
The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an
USC University Hospital, Los Angeles
Catholic Medical Center, Manchester
Deborah Heart & Lung Center, Browns Mills
Cardiovascular Associates of the Delaware Valley, Haddon Heights
Lourdes Cardiology Services, Voorhees Township
Hopital Erasme, Brussels
Royal Jubilee Hospital, Victoria
QE II Health Sciences, Halifax
St. Mary's General Hospital, Kitchener
McGill University Health Centre General Hospital, Montreal
Royal Alexandra Hospital, Edmonton
CHUM, Montreal
Helsinki University Central Hospital (HYKS), Helsinki
CHRU Hopital de Pontchaillou, Rennes
St-Etienne CHU, Saint-Priest-en-Jarez
Klinikum der Ruprecht-Karls-Universität Heidelberg, Heidelberg
Herzzentrum Dresden GmbH Universitätsklinik, Dresden
Kerckhoff-Klinik gGmbH, Bad Nauheim
The University of Hong Kong (Queen Mary Hospital), Hong Kong
Medanta - The Medicity Hospital, Gūrgaon
Max Super Specialty Hospital, New Delhi
Azienda Ospedaliera S. G. Moscati, Avellino
Chiba University, Chiba
Scanmed SA, Krakow
Szpital Kliniczny Przemienienia Panskiego UM w Poznaniu, Poznan
Santa Maria Hospital, Lisbon
Arrhythmia Group LLC, Ponce
Meshalkin National Medical Research Center, Novosibirsk
King Fahad Armed Forces Hospital, Jeddah
King Fahad Medical City, Riyadh
Clinical Center of Serbia - Pacemaker Center, Belgrade
Sejong Hospital, Bucheon-si
Keimyung University Dongsan Medical Center, Daegu
Asan Medical Centre, Seoul
Severance Hospital, Yonsei University Health System, Seoul
Hospital Universitario Infanta Cristina, Badajoz
Hospital Clínic de Barcelona, Barcelona
Fundación Jiménez Díaz, Madrid
Hospital Puerta de Hierro - Hospital Universitario, Madrid
HCU Virgen de la Victoria, Málaga
Hospital Universitario de Salamanca, Salamanca
Karolinska University Hospital, Solna, Stockholm
Taichung Veterans General Hospital, Taichung
The Royal Sussex County Hospital, Brighton
Foothills Medical Centre, Calgary
St. Paul's Hospital, Vancouver
Hopital du Sacre-Coeur de Montreal, Montreal
HSC, Eastern Health, St. John's
Kingston General Hospital, Kingston
Cardiac Arrhythmia Research Group Inc. (CARGI), Scarborough Village
St. Michael's Hospital, Toronto
Institut de Cardiologie de Montreal (Montreal Heart Inst.), Montreal
Institut de Cardiologie de Quebec (Hôpital Laval), Québec
CHUS Fleurimont, Sherbrooke
Hyogo College of Medicine, Nishinomiya
St. Marianna University School of Medicine Hospital, Kawasaki
Kitasato University Hospital, Sagamihara
Amsterdam Academic Medical Centre (AMC), Amsterdam
Seoul National University Bundang Hospital, Seongnam
Southampton University Hospital, Southampton
John Radcliffe Hospital, Oxford
Lead Sponsor
Abbott Medical Devices
INDUSTRY