Clinical trials: Pacemaker Malfunction
Atrioventricular Block, Heart Diseases
Biventricular Versus Right Ventricular Pacing in Heart Failure Patients With Atrioventricular Block (BLOCK HF)
Heart failure is a progressive disease that decreases the pumping action of the heart. This may cause a backup of fluid in the heart and may result in heart beat changes.
- Trial name
- BLOCK HF (NCT00267098)
- Testing
- Cardiac Resynchronization Therapy (CRT)
- Where
- 54 sites in United States, Canada
- Volunteers
- 918 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Heart Failure, Ventricular Arrhythmias and Cardiac Arrest
Effects of Upgrading From Right Ventricular Pacing to Cardiac Resynchronization Therapy and Comparison With Dual-Chamber Defibrillator
Patients who consecutively underwent de novo CRT implantation, CRT upgrade, and DDDR ICD implantation at the Cardiology Clinic of Bursa Postgraduate Hospital between January 2019 and December 2023 according to the European…
- Trial name
- NCT07077928
- Testing
- Pacemaker upgrade
- Where
- Turkey (Türkiye)
- Volunteers
- 307 people
- Sponsor
- Bursa Postgraduate Hospital
Congestive Heart Failure
Electrophysiological Optimization of Left Ventricular Lead Placement in CRT
The purpose of this study is to investigate if "optimal electrical resynchronization" achieved by targeting left ventricular lead placement to the myocardial region with the latest electrical activation combined with post-implant…
- Trial name
- ElectroCRT (NCT02346097)
- Testing
- Cardiac Resynchronization Therapy (St. Jude Qaudripolar LV lead)
- Where
- Denmark
- Volunteers
- 122 people
- Sponsor
- University of Aarhus
Congestive Heart Failure, Atrial Fibrillation
Study to Characterize Atrial Fibrillation in CHF Patients Indicated for CRT
The purpose of the study is to characterize atrial arrhythmias in patients indicated for Cardiac Resynchronization Therapy (CRT) and to monitor changes in atrial arrhythmias while CRT is provided.
- Trial name
- NCT00156728
- Testing
- Vitatron biventricular pacemaker
- Where
- 23 sites in Czechia, France and 5 more
- Volunteers
- 172 people
- Sponsor
- Medtronic BRC
Atrioventricular Block
Ventricular Pacing Site Selection (V-PASS)
The purpose of this study is to determine whether there is a relationship between ventricular lead position and the incidence of heart failure and atrial fibrillation in patients with indication for permanent pacemaker…
- Trial name
- NCT00292383
- Testing
- Leads to be implanted according randomization on specified sites. Vitatron pacemakers to be implanted: T60 DR, T70 DR, T20 SR, C60 DR
- Where
- 3 sites in Germany
- Volunteers
- 100 people
- Sponsor
- Medtronic BRC
Heart Failure With a Preserved Ejection Fraction, Heart Failure, Diastolic
Efficacy Study of Pacemakers to Treat Slow Heart Rate in Patients With Heart Failure
Determine the impact of restoring normal heart rate response during exercise and daily activity in patients with heart failure and a preserved ejection fraction (HFpEF) and chronotropic incompetence (CI).
- Conditions
- Heart Failure With a Preserved Ejection Fraction, Heart Failure, Diastolic, Chronotropic Incompetence
- Trial name
- RAPID-HF (NCT02145351)
- Testing
- Rate adaptive atrial pacing using a dual-chamber pacemaker, Pacemaker system will be implanted but set to Pacing Off.
- Where
- United States
- Volunteers
- 32 people
- Sponsor
- Mayo Clinic