Clinical trials: ECG Abnormalities
Prolonged QT Interval
Effects Rapid Atrial Pacing Has on the Electrocardiogram (ECG) in Patients With Dual Chamber Pacemakers
The purpose of this study is to learn what effect rapid atrial pacing (in patients with dual chamber pacemakers) will have on the electrocardiogram including the QT Interval.
- Trial name
- NCT00883610
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- Vanderbilt University
Cardiomyopathy, Dilated, Tachycardia, Ventricular
The Leiden Nonischemic Cardiomyopathy Study
Rationale: Sudden cardiac death, mainly caused by ventricular arrhythmias (VA), is a major cause of morbidity and mortality in non-ischemic cardiomyopathy (NICM). Therapies that effectively prevent VA are lacking.
- Conditions
- Cardiomyopathy, Dilated, Tachycardia, Ventricular, Ventricular Fibrillation
- Trial name
- NCT01940081
- Testing
- Transthoracic echocardiography, Exercise test, 24-hour Holter electrocardiogram
- Where
- Netherlands
- Volunteers
- 148 people
- Sponsor
- Leiden University Medical Center
Predialytic Chronic Kidney Disease
Electrocardiograph Changes and Holter Abnormalities in Children With Predialytic Chronic Kidney Disease
CKD is a strong risk factor for cardiovascular disease and mortality , As in adults, cardiovascular disease occurs in some children with CKD before they reach ESRD as well as after
- Trial name
- NCT05726071
- Testing
- Holter
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Sohag University
Neoplasms, Cardiac Arrhythmia
Beat to Beat A Study in Paediatric, Adolescent and Young Adult Patients Who Are Undergoing or Have Undergone Cancer Therapy to Evaluate the Agreement Between QTc Measured Using 12 Lead Electrocardiogram (ECG) and a Wearable Device ECG
A prospective study in paediatric, adolescent and young adult patients aged 7 to 18 years to evaluate the agreement between QTc measured using 12 lead electrocardiogram (ECG) and the wearable device ECG.
- Trial name
- NCT05615376
- Testing
- ECG application, 12 lead ECG
- Where
- Australia
- Volunteers
- 45 people
- Sponsor
- Murdoch Childrens Research Institute
Long QT Syndrome, Cardiac Repolarization
Effect of Beta-blocker Therapy on QTc Response in Exercise and Recovery in Normal Subjects
Background. In congenital long QT syndrome type 1 (LQT1), episodes of ventricular tachycardia are usually triggered by exercise and can be prevented in most patients by beta-blocker therapy.
- Trial name
- NCT00588965
- Testing
- Propranolol LA
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- MetroHealth Medical Center
Tachycardia, Paroxysmal Supraventricular Tachycardia
AI-Based Differential Diagnosis and Localization of Tachycardia Using ECG: Multicenter Registry (EP-AI ASSIST)
This multicenter retrospective study aims to develop, validate, and clinically apply an artificial intelligence (AI)-powered electrocardiography (ECG) algorithm for the diagnosis and prognostic prediction of cardiovascular…
- Conditions
- Tachycardia, Paroxysmal Supraventricular Tachycardia, Wolff-Parkinson-White Syndrome, Premature Ventricular Contractions
- Trial name
- EP-AI ASSIST (NCT07859020)
- Testing
- AI-based ECG Diagnostic and Localization Algorithm
- Where
- South Korea
- Volunteers
- 10,000 people
- Sponsor
- Inha University Hospital
Ventricular Ejection Fraction, LVF
AI-Enabled Direct-from-ECG Ejection Fraction (EF) Severity Assessment Using COR ECG Wearable Monitor
This prospective, multicenter, cluster-randomized controlled study aims to evaluate the accuracy of an investigational artificial intelligence (AI) Software as a Medical Device (SaMD) designed to compute ejection fraction (EF)…
- Conditions
- Ventricular Ejection Fraction, LVF, LV Dysfunction, Atrial Enlargement
- Trial name
- EFACT (NCT06699056)
- Testing
- 15-minutes of sitting during COR ECG Acquistion
- Where
- 8 sites in United States
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Peerbridge Health, Inc
Arrhythmias, Cardiac, Children, Only
Mobile Electrocardiogram Monitoring for Detecting Arrhythmias in Children
The objective of this project is to evaluate the capability of a specific mobile electrocardiogram monitoring of detecting arrhythmic events in children with history of palpitation and or syncope.
- Conditions
- Arrhythmias, Cardiac, Children, Only, Congenital Heart Disease, Sudden Cardiac Death
- Trial name
- NCT05140343
- Testing
- KARDIA Mobile ECG Monitoring (KMCM)
- Where
- Spain
- Volunteers
- 84 people
- Sponsor
- Centro Medico Teknon
Atrial Septal Defect, Patent Foramen Ovale
AWARE Registry: Wearable ECG in Structural Heart Interventions
This study is a multi-center (Sinchon Severance hospital / Gangnam Severance hospital), prospective cohort observational study to patients who had undergone structural heart intervention including device closure for secundum type…
- Trial name
- NCT06236776
- Where
- South Korea
- Volunteers
- 150 people
- Sponsor
- Yonsei University
Chagas Disease
Prevalence of Chagas Disease in Immigrant Patients With Conduction Abnormalities on Electrocardiogram
Chagas disease is endemic to the Americas, infecting between 16-18 million individuals. In immigrant populations in the United States from endemic areas, it is estimated up to 4.9% may be asymptomatic carriers of Trypanosoma…
- Trial name
- NCT00453700
- Testing
- Trypanosoma cruzi serology
- Where
- United States
- Volunteers
- 327 people
- Sponsor
- Olive View-UCLA Education & Research Institute
Fetal Growth Retardation
Fetal Heart Rate Variability
Need statement a new way to distinguish between a healthy small fetus and a small fetus suffering from deprivation of nutrition and oxygen to prevent unnecessary induction of preterm birth and improve neonatal outcome.
- Trial name
- NCT04323865
- Testing
- fetal heart rate variability
- Where
- Denmark
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Atrial Fibrillation (AF), Cardiac Amyloidosis
Early Detection of Concealed Cardiac Amyloidosis Using AI-ECG and CT-Derived Extracellular Volume in Patients With Atrial Fibrillation
This study investigates the clinical efficacy of a non-invasive screening protocol using AI-ECG and CT-ECV analysis for cardiac amyloidosis. The study targets on atrial fibrillation(AF) patients with "red-flag" indicators.
- Trial name
- SEARCH-AF (NCT07567508)
- Testing
- AI-ECG analysis, CT-ECV analysis, Atrial fibrillation treatment
- Where
- South Korea
- Volunteers
- 500 people
- Sponsor
- Samsung Medical Center
Prolonged QT Interval in EKG and Sudden Death
Influence of Progesterone Administration on Drug-Induced QT Interval Lengthening
Female sex is an independent risk factor for the potentially fatal drug-induced arrhythmia (irregular heartbeat) known as torsades de pointes (TdP), which is associated with prolongation of the corrected QT (QTc) interval on the…
- Trial name
- NCT01929083
- Testing
- Progesterone, Ibutilide
- Where
- 2 sites in United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Indiana University
Long QT Syndrome Type 1 or 2
Comparison Between Epinephrine and Exercise Test in QT Long Syndrome Patients
The aim of the study is to evaluate the best stress exam to unmask long QT in patient with KCNQ1 or KCNH2 mutation without long QT interval in rest electrocardiogram.
- Trial name
- QT long (NCT01745666)
- Testing
- exercise test, Epinephrine test
- Where
- 8 sites in France
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- Nantes University 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
Cardiomyopathies, Primary, Arrhythmia
An Arrhythmia Risk Stratification and Genetic Trial
The prospective EUTrigTreat multi-center study is an observational, advanced diagnostics and genetic risk stratification trial in patients with standard indications for ICD treatment, with and without myocardial infarction in…
- Conditions
- Cardiomyopathies, Primary, Arrhythmia, Sudden Cardiac Death, Calcium Metabolism Disorders
- Trial name
- EUTrigTreat (NCT01209494)
- Where
- 4 sites in Belgium, Germany and 2 more
- Volunteers
- 672 people
- Sponsor
- University Medical Center Goettingen
Long QT Syndrome
Influence of Testosterone Administration on Drug-Induced QT Interval Prolongation and Torsades de Pointes
Torsades de pointes (TdP) is a potentially fatal ventricular arrhythmia associated with corrected QT (QTc) interval prolongation.
- Trial name
- NCT02513940
- Testing
- Testosterone, Progesterone, Ibutilide
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Indiana University
Cardiomyopathies, Amyloidosis Cardiac
Characterization of Patients With Cardiomyopathy to Identify Critical Patients Candidates for Cardiac Transplantation
The study aims to identify new diagnostic and prognostic markers for CMP that can help predict disease progression. In particular, the study will focus on microRNAs (miRNAs) and spatial transcriptomics, which are emerging…
- Conditions
- Cardiomyopathies, Amyloidosis Cardiac, Fabry Disease, Arrhythmogenic Cardiomyopathy
- Trial name
- CMPMIRNA (NCT06813443)
- Where
- 3 sites in Italy
- Volunteers
- 700 people
- Sponsor
- IRCCS Azienda Ospedaliero-Universitaria di Bologna
Ductus Arteriosus, Patent
Adding Paracetamol to Ibuprofen for Treatment of Patent Ductus Arteriosus in Preterm Infants
The purpose of this study is to determine if adding paracetamol to ibuprofen is superior to ibuprofen only for treatment of patent ductus arteriosus (PDA) in preterm infants.
- Trial name
- NCT02002741
- Testing
- Paracetamol
- Where
- Israel
- Volunteers
- 24 people
- Sponsor
- Rambam Health Care Campus
Pregnancy Related, Pregnancy Disease
Fetal Autonomic Nervous sysTem Evaluation
The autonomic nervous system (ANS) is involved in cardiovascular, metabolic and cognitive processes, so its study in the fetus can provide relevant functional diagnostic and prognostic information.
- Conditions
- Pregnancy Related, Pregnancy Disease, Pregnancy Complications, Pre-Eclampsia
- Trial name
- FANTE (NCT06330987)
- Testing
- electrocardiograph
- Where
- Italy
- Volunteers
- 186 people, healthy volunteers welcome
- Sponsor
- University of Pisa