| Not Yet Recruiting | NS-PFA Catheter Ablation of Paroxysmal Atrial Fibrillation With the Pulse Biosciences CellFX System NCT07018596 | Pulse Biosciences, Inc. | N/A |
| Not Yet Recruiting | Quality of Cardiopulmonary Resuscitation Pre- and Intra Hospital NCT04295291 | Ostfold University College | — |
| Not Yet Recruiting | Spanish Registry of Redo Procedures Following Pulmonary Vein Ablation by Pulsed Field Ablation Technology: RES NCT07185412 | Instituto de Investigación Sanitaria Aragón | — |
| Recruiting | Smart Textile ECG Monitoring NCT06870175 | Myant Medical Corp. | N/A |
| Active Not Recruiting | Validation Study: Extended Wear Performance of the Zio Monitor - SHASTA II NCT07205367 | iRhythm Technologies, Inc. | N/A |
| Recruiting | Pattern of Cardiac Arrhythmia in Patients With MASLD NCT06490432 | Sohag University | — |
| Recruiting | Investigation of Cardioversion Versus Therapeutic Ablation for Persistent AF (ORBICA-AF) NCT06096246 | Barts & The London NHS Trust | N/A |
| Recruiting | CellFX® Nanosecond Pulsed Field Ablation (PFA) 360 Catheter Ablation System for Treatment of Atrial Fibrillati NCT06696170 | Pulse Biosciences, Inc. | N/A |
| Recruiting | Emergency Resuscitative Endovascular Balloon Occlusion of the Aorta in Out of Hospital Cardiac Arrest NCT06071910 | Queen Mary University of London | N/A |
| Recruiting | Ablation of Focal Activation in Atrial Fibrillation NCT06402617 | Imperial College London | N/A |
| Not Yet Recruiting | New Onset Cardiac Arrhythmias in Septic Patients in Critical Care Setting, Predictors and Outcomes. NCT06351956 | Assiut University | — |
| Recruiting | Colchicine After Electrocardioversion for Atrial Fibrillation NCT05890664 | University Hospital, Basel, Switzerland | Phase 3 |
| Completed | Effects of HSK3486 on Cardiac Repolarization in Health Subjects (TQT) NCT06795204 | Haisco-USA Pharmaceuticals, Inc. | Phase 1 |
| Active Not Recruiting | Cardiac Arrhythmia Telemetry; Conventional vs HeartWatch NCT06164808 | HelpWear Inc. | N/A |
| Unknown | FibriCheck Data Registry NCT06282393 | Qompium NV | N/A |
| Active Not Recruiting | Assert-IQ Implantable Cardiac Monitor (ICM) Post Market Study NCT06172699 | Abbott Medical Devices | — |
| Active Not Recruiting | Safety and Efficacy of EasyCool Catheter NCT06482840 | MedFact Engineering GmbH | — |
| Unknown | Atropine vs Isoprenaline in the Invasive Diagnosis of Arrhythmias NCT06082388 | Medical University of Lodz | N/A |
| Unknown | Atrial Fibrillation and Other Cardiac Arrhythmias and Diseases After Radiotherapy for Breast Cancer : Watch Yo NCT06073509 | Sophie JACOB | — |
| Completed | Holter Versus Skiin Garments NCT05983484 | Myant Medical Corp. | — |
| Completed | Pulsed ElectRic FiEld Versus Cryoballoon for PAF NCT07100834 | Universitair Ziekenhuis Brussel | N/A |
| Enrolling By Invitation | Modified Left Atrial Maze Procedure for Concomitant AF Ablation NCT07236398 | University Paul Sabatier of Toulouse | — |
| Recruiting | The Role of Right Atrial Ectopy Triggering Ganglionated Plexuses in AF NCT05539040 | Imperial College London | N/A |
| Completed | Beat to Beat A Study in Paediatric, Adolescent and Young Adult Patients Who Are Undergoing or Have Undergone C NCT05615376 | Murdoch Childrens Research Institute | N/A |
| Recruiting | Post-market Clinical Follow-up Data Collection From Procedures With BIOTRONIK EP Products NCT05560958 | Biotronik SE & Co. KG | — |
| Completed | Non-invasive Tool to Assess Electrophysiological Mechanisms in Cardiac Arrhythmias NCT05772182 | Corify Care S.L. | — |
| Completed | Measuring Hydration Levels of Healthy and Heart Failure Patients Before, During, and After an Electrophysiolog NCT04609683 | NYU Langone Health | N/A |
| Completed | Mobile Cardiac Telemetry and Advanced Multi-Parameter Monitoring in PatientS Wearing a Novel Device With Biome NCT05505136 | Zoll Medical Corporation | — |
| Unknown | Prognostic Value of the Selvester QRS Score for Perioperative Myocardial Injury Following Non-cardiac Surgery NCT05453097 | Istanbul University - Cerrahpasa | — |
| Completed | Single Center Pilot Study Using the ECGenius System to Collect Electrogram Data to Test an Ablation Impact Alg NCT05458648 | CathVision ApS | — |
| Completed | The Objective of This Multicentre Study is to Collect Operative Data on the Related Clinical Functional Outcom NCT05314218 | Alcis | — |
| Unknown | Ocular and Cardiac Effects of Battle Ground NCT05377931 | Benha University | — |
| Completed | Diagnostic Accuracy of WEARable TECHnology Single-lead ECG in Detecting Cardiac Arrhythmias NCT05298553 | Oxford University Hospitals NHS Trust | N/A |
| Completed | An Evaluation of the Safety and Performance of the CathVision ECGenius® System. NCT05301803 | CathVision ApS | — |
| Unknown | Continuous Ambulatory Cardiac Monitoring for Recurrent Atrial Fibrillation After Sepsis NCT05217485 | Cambridge University Hospitals NHS Foundation Trust | N/A |
| Unknown | The Effect of Potassium Lowering Drugs on Cardiac Electrical Stability in Hemodialysis Patients (ART Study) NCT06242041 | Peking University First Hospital | Phase 4 |
| Unknown | Evaluation of Electrocardiography Performed With Mobile ECG Devices in Cardiac Patients and Healthy Volunteers NCT05206825 | Medical University of Lodz | — |
| Recruiting | Advanced TecHnologies For SuccEssful AblatioN of AF in Clinical Practice NCT05617456 | Giulio Zucchelli | — |
| Recruiting | StereoTactic Ablative RadioTherapy of Cardiac Arrhythmias NCT04843683 | University Health Network, Toronto | N/A |
| Completed | Investigation of Therapeutic Ablation Versus Cardioversion for AF NCT03907982 | Barts & The London NHS Trust | N/A |
| Completed | Solutions for Atrial Fibrillation Edvocacy (SAFE) NCT05067114 | American Pharmacists Association Foundation | — |
| Completed | Evaluation of the BIOTRONIK AutoAdapt Algorithm for Continuous Automatic Adaptive Cardiac Resynchronization NCT04774523 | Biotronik SE & Co. KG | N/A |
| Completed | Autonomic Nerve Stimulation Using External Auditory Canal Electrodes NCT04884607 | Seoul National University Hospital | N/A |
| Active Not Recruiting | SBRT in Chagas Disease Ventricular Tachycardia NCT04984265 | University of Sao Paulo General Hospital | Phase 1 / Phase 2 |
| Recruiting | Accuracy of Cardiac Arrhythmias and Conduction Disorders Diagnosis Using a Smartwatch NCT04437914 | Federal University of Piaui | — |
| Active Not Recruiting | Cardiac Arrhythmia in Patients with End-Stage Renal Disease NCT04841304 | Rigshospitalet, Denmark | — |
| Terminated | Ultrasound-guided Venous Access for Pacemaker and Defibrillator Implants NCT04867460 | Region Skane | N/A |
| Completed | Proton Particle Therapy for Cardiac Arrhythmia NCT04392193 | Konstantinos Siontis | N/A |
| Recruiting | Repaired Tetralogy of Fallot Italian Registry NCT05288894 | Azienda Ospedaliero, Universitaria Ospedali Riuniti | — |
| Unknown | Mitral Valve Prolapse, Arrhythmias and Mitral Valve Surgery NCT05562804 | Ospedale San Raffaele | — |
| Completed | A Comparative Study of an Innovative 3-lead Wireless Water Resistant Holter System and a Conventional Holter S NCT04723355 | Hospital Israelita Albert Einstein | N/A |
| Unknown | Use of "iSuite" During CMR-guided Electrophysiological Procedures NCT04727645 | Academisch Ziekenhuis Maastricht | — |
| Completed | Stellatar Ganglione Blockage for Ventricular Arrhytmias NCT05712122 | Adana City Training and Research Hospital | N/A |
| Withdrawn | CLAIM: Using the KODEX-EPD System to Guide PaCing Lead Placements, A First In Man Study. NCT04657718 | EPD Solutions, A Philips Company | N/A |
| Completed | COvid-19 LongitUdinal Multiethnic BioImaging Assessment of CARDiovascular Sequelae Registry NCT04661657 | Columbia University | — |
| Completed | Mobile Cardiac Telemetry and Advanced Multi-Parameter Monitoring in Patients NCT04754204 | Zoll Medical Corporation | — |
| Completed | Vektor vMap™ Clinical Validation Study NCT04559061 | Vektor Medical | — |
| Unknown | Comparative Study of the Sternal Patch System With a Conventional Holter Recorder NCT04241692 | Children's National Research Institute | N/A |
| Terminated | Prospective Procedural Data Collection for Continuous Improvement of the KODEX - EPD™ System Performance. NCT04552665 | EPD Solutions, A Philips Company | — |
| Completed | An Evaluation of the Safety and Performance of the CathVision Cube® System NCT05114382 | CathVision ApS | N/A |
| Completed | Comparing Sensitivity and Specificity of Pacemaker ID Application and Cardiac Rhythm Management Device-Finder NCT04957108 | Aga Khan University Hospital, Pakistan | — |
| Completed | N-Acetylcysteine Protection Against Radiation Induced Cellular Damage NCT04154982 | Centro Cardiologico Monzino | Phase 2 |
| Unknown | Clinical and Economic Impact of an Organized Treatment Pathway on AFib Patient Management From the ER NCT04476524 | Kansas City Heart Rhythm Research Foundation | — |
| Unknown | Better Mechanistic Understanding of and Risk Stratification for Ventricular Tachyarrhythmias Through ECGI NCT04548804 | Maastricht University Medical Center | N/A |
| Unknown | EVALECGcardio Study NCT04468477 | The Leeds Teaching Hospitals NHS Trust | N/A |
| Active Not Recruiting | Remote Patient Management of CIEDs NCT03405740 | Ratika Parkash | N/A |
| Completed | Qualitative Analysis of Photoplethysmography Waveforms for the Detection of Cardiac Arrhythmias NCT04374344 | Qompium NV | — |
| Completed | Hemodynamics Measurement in Radiofrequency Catheter Ablation NCT04227119 | Emory University | N/A |
| Unknown | The Effect of Energy Drink Ingredients on Cardiovascular Function in Men and Women 18-39 Years Old NCT04149717 | Duquesne University | N/A |
| Completed | Novel Cardiac Signal Processing System NCT04112433 | BioSig Technologies, Inc. | — |
| Unknown | SIGIL: Signal Interpretation and Analysis In Real Life Cardiac Arrhythmias NCT05508880 | National Heart Centre Singapore | — |
| Withdrawn | Phase I/II Randomized Study of Stereotactic Ablative Radiotherapy (SABR) Versus Standard of Care for Refractor NCT05084391 | M.D. Anderson Cancer Center | Phase 1 / Phase 2 |
| Completed | High-Density (HD) Wave Mapping in Subjects With Atrial Fibrillation as a Predictor of Recurrence After a Singl NCT03882021 | Abbott Medical Devices | N/A |
| Completed | Effects of Osteopathic Manipulative Therapy on Arrhythmias NCT04004741 | New York Institute of Technology | N/A |
| Unknown | Atrial Sensing Capability for Better Detection of Atrial Fibrillation NCT03932604 | Samsung Medical Center | N/A |
| Unknown | Noninvasive Electrocardiographic Imaging for Individuals at Risk for Apparently Idiopathic Ventricular Fibrill NCT03963271 | Maastricht University Medical Center | — |
| Unknown | Psychometric Characterization of Patients With Cardiac Arrhythmias NCT04474418 | Charite University, Berlin, Germany | — |
| Unknown | Validation of a Smartphone-based Recorder for Detection of Cardiac Arrhythmias NCT03996954 | Blackpool Teaching Hospitals NHS Foundation Trust | N/A |
| Completed | Patient Status Engine (PSE): EARLY FEASIBILITY AND USABILITY STUDY NCT03480204 | The Cleveland Clinic | — |
| Recruiting | Mayo AVC Registry and Biobank NCT03049254 | Mayo Clinic | — |
| Completed | High Radiofrequency Power for Faster and Safer Pulmonary Veins Isolation - a Pilot Observational Study. NCT04162249 | Hospital Universitario La Paz | — |
| Completed | EnSite Precision Observational Study NCT03260244 | Abbott Medical Devices | — |
| Unknown | The Rhytmia System to Determine the Precise Location and Potential Mechanism of Premature Contractions NCT03460535 | University Hospital, Toulouse | — |
| Completed | Emotional Regulation in Patients With Implanted Automatic Defibrillator NCT04235881 | Instituto de Investigación Hospital Universitario La Paz | N/A |
| Unknown | Same Day Discharge NCT02943512 | University of Cincinnati | N/A |
| Completed | Screening for Hearth Rhythm Disorders NCT04463524 | Healthcare Center Murska Sobota | — |
| Completed | SJM MRI Diagnostic Imaging Registry (IDE) NCT02807948 | Abbott Medical Devices | N/A |
| Completed | Antithrombotic Therapy in Patients Undergoing CIED Surgery - HEMATOMA NO MORE Registry NCT03067909 | Azienda Ospedaliera Universitaria Senese | — |
| Unknown | Retracting the Esophagus During AF Ablation NCT02665442 | Northeast Scientific, Inc. | N/A |
| Terminated | MediGuide Registry NCT02470312 | Abbott Medical Devices | — |
| Completed | ZIPS Study - Zip Incision aPproximation vs. Suture NCT02213510 | University of California, San Diego | N/A |
| Completed | MRI Assessment of Arrythmia Ablation Lesions NCT02761343 | Children's National Research Institute | N/A |
| Completed | Dietary Supplement on Symptom Awareness and Heart Rhythm in Patients With Cardiac Arrhythmia NCT02652338 | Trommsdorff GmbH & Co. KG | Phase 3 |
| Completed | RF Surgical Sponge-Detecting System on the Function of Pacemakers and Implantable Cardioverter Defibrillators NCT02111980 | University of California, San Diego | N/A |
| Completed | Use of NAVA-catheter Positioning Screen to Identify Different Cardiac Arrhythmias NCT02040675 | ProMedica Health System | — |
| Withdrawn | Electrocardiographic Mapping and Imaging NCT01394965 | Mayo Clinic | EARLY_Phase 1 |
| Completed | Using an iPhone ECG to Monitor the QT Interval on Dofetilide and Sotalol Patients NCT02241252 | University of Oklahoma | N/A |
| Completed | Maestro Handheld Cardiac Monitor Validation NCT02977104 | University of Michigan | N/A |
| Completed | AV Delay Optimization vs. Intrinsic Conduction in Pacemaker Patients With Long PR Intervals NCT02154750 | University of California, San Diego | N/A |
| Completed | Correlating QLV Interval to Left Ventricular (LV) Lead Position in Patients Receiving Cardiac Resynchronizatio NCT02166762 | University of California, San Diego | N/A |
| Unknown | Development and Prevention of Severe Heart Disease in Systemic Sclerosis NCT01829126 | Gabriele Valentini | — |
| Completed | Effects of a Comprehensive Sexual Rehabilitation Programme in Heart Patients NCT01796353 | Rigshospitalet, Denmark | N/A |
| Completed | Oxytocin Effects on Cardiac Electrophysiology NCT01780337 | William Whang | EARLY_Phase 1 |
| Completed | Scripps Wired for Health Monitoring Study NCT01975428 | Scripps Translational Science Institute | N/A |
| Completed | Patient Reported Outcome Measures for Ablation of Cardiac Arrhythmias NCT01672528 | Cardiff and Vale University Health Board | — |
| Completed | Safety of the Colonoscope Magnetic Imaging Device (ScopeGuide®) in Patients With Implantable Cardiac Devices NCT01825525 | Cambridge University Hospitals NHS Foundation Trust | N/A |
| Completed | True Continuous ECG Monitoring (TCEM Study) NCT01559246 | iRhythm Technologies, Inc. | — |
| Completed | Comparison of Dexmedetomidine and Remifentanil Infusion During CABG NCT01572454 | Samsung Medical Center | N/A |
| Completed | Pharmacokinetics of Understudied Drugs Administered to Children Per Standard of Care NCT01431326 | Daniel Benjamin | — |
| Completed | Berlin Beat of Running Study NCT01428778 | Charite University, Berlin, Germany | — |
| Completed | Evaluating Myocardial Injury for Defibrillation Threshold Testing Methods for ICD Implantation NCT02111993 | University of California, San Diego | N/A |
| Completed | Clearance Of Mucus In Stents (COMIS) NCT01370278 | M.D. Anderson Cancer Center | N/A |
| Completed | Sedation Regimen in Patients Undergoing Cardiac Electrophysiology Study and Ablation : a Comparison Between De NCT01652586 | Yonsei University | N/A |
| Unknown | Optimizing Diagnostics Of Syncope Events Using Intelligent Telemetric Solutions. NCT01265290 | National Institute of Cardiology, Warsaw, Poland | N/A |
| Completed | Implantable Loop Recorder in Hemodialysis Patients NCT01252823 | University Hospital, Bordeaux | N/A |
| Completed | Sleep and Ventricular Arrhythmias Study NCT02232204 | University of Florida | Phase 2 |
| Completed | Examination of Implant´s Safety in an Electronic and Magnetic Field Environment NCT01626261 | RWTH Aachen University | — |
| Unknown | Observational Study of the Sleuth Implantable ECG Monitoring System NCT00717106 | Transoma Medical | — |
| Withdrawn | Heart Rate Variability Changes During Cardiac Surgery And The Incidence Of Post-Operative Cardiac Arrhythmias NCT01359683 | Drexel University College of Medicine | N/A |
| Completed | The Signal-averaged ElectrocArdiogram in Long Term Follow-up of Chronic CHagas Disease - RIO de Janeiro Cohort NCT01340963 | Universidade Gama Filho | — |