68 studies found for:    arrhythmia OR atrial fibrillation OR ventricular fibrillation OR tachycardia OR bradycardia | Open Studies | Exclude Unknown | NIH, U.S. Fed
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Rank Status Study
1 Recruiting Vein of Marshall Ethanol Infusion for Persistent Atrial Fibrillation FIBRILLATION
Conditions: Ventricular Tachycardia;   Atrial Fibrillation
Interventions: Drug: Ethanol;   Procedure: Ablation
2 Recruiting Dietary Salt in Postural Tachycardia Syndrome
Condition: Postural Orthostatic Tachycardia Syndrome
Interventions: Radiation: Blood Volume;   Radiation: Total Blood Volume;   Procedure: Exercise Capacity Test - Bicycle;   Procedure: Posture Study
3 Recruiting Aldosterone & Sodium Regulation in Postural Tachycardia Syndrome - Screening
Condition: Postural Tachycardia Syndrome
Interventions: Other: Autonomic Function Testing;   Other: Posture Study;   Procedure: Measurement of Total Blood Volume;   Other: Exercise Capacity Test
4 Recruiting A Pilot Trial of Phenylephrine Versus Norepinephrine for Septic Shock in Critically Ill Patients
Conditions: Septic Shock;   Sepsis;   Shock;   Tachycardia;   Arrhythmia
Interventions: Drug: Phenylephrine;   Drug: Norepinephrine
5 Not yet recruiting Substrate Versus Trigger Ablation for Atrial Fibrillation
Condition: Atrial Fibrillation
Interventions: Procedure: FIRM Ablation;   Procedure: Conventional AF ablation with PVI
6 Recruiting Adrenocorticotropic Hormone Stimulation in Postural Orthostatic Tachycardia Syndrome (POTS)
Condition: Postural Tachycardia Syndrome
Intervention: Drug: Cosyntropin administration
7 Recruiting Catheter Ablation vs Anti-arrhythmic Drug Therapy for Atrial Fibrillation Trial
Conditions: Atrial Fibrillation;   Arrhythmia
Interventions: Device: Left atrial ablation;   Drug: Rate or Rhythm Control Therapy
8 Recruiting Using the Optical Frequency Domain Imaging (OFDI) Capsule to Image the Esophagus in Patients Who Have Atrial Fibrillation and Have Undergone Radio Frequency (RF) Ablation
Condition: Atrial Fibrillation
Intervention: Device: OFDI Capsule
9 Recruiting A Study of Pyridostigmine in Postural Tachycardia Syndrome
Condition: Postural Tachycardia Syndrome
Interventions: Drug: pyridostigmine;   Drug: Placebo
10 Recruiting Dietary Sodium's Effect on Urinary Sodium and Dopamine Excretion in Patients With Postural Tachycardia Syndrome
Condition: Postural Orthostatic Tachycardia Syndrome
Interventions: Radiation: Total Blood Volume;   Procedure: Exercise Capacity Test - Bicycle;   Procedure: Posture Study
11 Recruiting Influence of Sleep Apnea on Risk of Atrial Fibrillation
Conditions: Sleep Apnea;   Atrial Fibrillation
Intervention: Other: Continuous Positive Airway Pressure
12 Recruiting Pathophysiology of Orthostatic Intolerance
Conditions: Tachycardia;   Postural Orthostatic Tachycardia Syndrome
Interventions: Radiation: DAXOR;   Procedure: QSweat;   Drug: Intrinsic Heart Rate
13 Recruiting Identification of Genomic Predictors of Adverse Events After Cardiac Surgery
Conditions: Heart; Dysfunction Postoperative, Cardiac Surgery;   Genetic Predisposition to Disease;   Atrial Fibrillation;   Myocardial Infarction;   Heart Failure
Intervention:
14 Recruiting Effect of Dietary Sodium Intake on Vascular Endothelium
Condition: Postural Tachycardia Syndrome (POTS)
Interventions: Procedure: Pulsitile Arterial Tonometry (PAT) Protocol;   Device: Calf Blood Flow in Reactive Hyperemia (CBF-RH);   Device: Evaluation of Forearm-Mediated Dilation
15 Recruiting Positive Therapy for Autonomic Function & Mood in ICD Patients
Conditions: Ventricular Arrhythmia;   Implantable Cardioverter Defibrillator
Interventions: Behavioral: Quality of Life Therapy (QOLT);   Behavioral: Heart Healthy Education (HHE)
16 Recruiting Clinical Autonomic Disorders: A Training Protocol
Conditions: Chronic Fatigue Syndrome;   Pseudopheochromocytoma;   Healthy Volunteers;   Neurocardiogenic Syncope;   Postural Tachycardia Syndrome
Intervention:
17 Recruiting Prospective Observational Study of the ICD in Sudden Cardiac Death Prevention
Conditions: Heart Failure, Congestive;   Death, Sudden, Cardiac;   Arrhythmia;   Cardiomyopathies
Intervention:
18 Recruiting Pharmacogenetics of Warfarin in Caribbean Hispanics
Conditions: Atrial Fibrillation;   Deep Vein Thrombosis;   Cardiac Valvular Insufficiency;   Coagulopathies;   Pulmonary Embolism
Interventions: Genetic: Genotype-guided;   Other: Standard-of-Care
19 Not yet recruiting Risk of Oxygen During Cardiac Surgery Trial
Condition: Cardiac Surgery
Intervention: Drug: Oxygen
20 Recruiting A Registry to Determine the Clinical and Genetic Risk Factors for Torsade De Pointes
Conditions: Long qt Syndrome;   Torsade de Pointes
Intervention:

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Indicates status has not been verified in more than two years