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A Dual-Chamber Leadless Pacemaker
Reinoud E Knops1, Vivek Y Reddy1, James E Ip1
1From Amsterdam University Medical Centers, Amsterdam (R.E.K., K.T.N.B.); Icahn School of Medicine at Mount Sinai (V.Y.R.) and Weill Cornell Medicine-New York Presbyterian Hospital (J.E.I.) - both in New York; HonorHealth Cardiac Arrhythmia Group, Scottsdale, AZ (R.D.); Foothills Medical Centre, Calgary, AB, Canada (D.V.E.); Centre Hospitalier Régional Universitaire Albert Michallon, Grenoble, France (P.D.); Texas Cardiac Arrhythmia Institute, Austin (R.C.); Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy (M.G.B.); Tokyo Women's Medical University, Tokyo (M.S.); Deutsches Herzzentrum der Charité, Berlin (G.H.); Na Homolce Hospital, Prague, Czech Republic (V.Y.R., P.N.); Huntington Memorial Hospital, Pasadena (M.R.), and Abbott Medical, Sylmar (J.R.N., L.G., C.H.) - both in California; and the Cleveland Clinic, Cleveland (D.J.C.).
A new dual-chamber leadless pacemaker system demonstrated safety and efficacy in a multicenter study. This innovative system provides reliable atrial pacing and atrioventricular synchrony for patients requiring pacemakers.
Area of Science:
- Cardiology
- Medical Devices
- Electrophysiology
Background:
- Single-chamber leadless pacemakers lack atrial pacing and consistent atrioventricular synchrony.
- A dual-chamber leadless system could expand treatment options for more patients.
Purpose of the Study:
- To evaluate the safety and performance of a novel dual-chamber leadless pacemaker system.
- Assess the system's ability to provide atrial pacing and atrioventricular synchrony.
Main Methods:
- Prospective, multicenter, single-group study involving 300 patients.
- Primary safety endpoint: freedom from complications at 90 days.
- Primary performance endpoints: adequate atrial capture/sensing and at least 70% AV synchrony at 3 months.
Main Results:
- Successful implantation in 98.3% of patients.
- Primary safety endpoint met in 90.3% of patients, exceeding the goal.
- Primary performance endpoints met in 90.2% (atrial function) and 97.3% (AV synchrony), surpassing goals.
Conclusions:
- The dual-chamber leadless pacemaker system met its primary safety endpoint.
- The system effectively provided atrial pacing and reliable atrioventricular synchrony for 3 months post-implantation.
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