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78 studies found for:    arrhythmia OR atrial fibrillation OR ventricular fibrillation OR tachycardia OR bradycardia | Open Studies | NIH, U.S. Fed
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Rank Status Study
1 Unknown  The Maintenance of Human Atrial Fibrillation
Conditions: Atrial Fibrillation;   Arrhythmias, Cardiac
Intervention:
2 Recruiting Vein of Marshall Ethanol Infusion for Persistent Atrial Fibrillation
Conditions: Ventricular Tachycardia;   Atrial Fibrillation
Interventions: Drug: Ethanol;   Procedure: Ablation
3 Unknown  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
4 Recruiting Substrate Versus Trigger Ablation for Paroxysmal Atrial Fibrillation
Condition: Atrial Fibrillation
Interventions: Procedure: FIRM Ablation;   Procedure: Conventional AF ablation with PVI
5 Recruiting MRI Assessment of Arrythmia Ablation Lesions
Conditions: Ventricular Tachycardia;   Cardiac Arrhythmia
Intervention: Other: MRI scan
6 Unknown  The Dynamics of Human Atrial Fibrillation
Conditions: Atrial Fibrillation;   Atrial Tachyarrhythmia
Intervention:
7 Not yet recruiting New Formulations of Propafenone to Treat Atrial Fibrillation
Condition: Atrial Fibrillation
Interventions: Drug: (R)-propafenone;   Drug: (S)-Propafenone;   Drug: Placebo
8 Recruiting A Study of Pyridostigmine in Postural Tachycardia Syndrome
Condition: Postural Tachycardia Syndrome
Interventions: Drug: pyridostigmine;   Drug: Placebo
9 Recruiting Influence of Sleep Apnea on Risk of Atrial Fibrillation
Conditions: Sleep Apnea;   Atrial Fibrillation
Intervention: Other: Continuous Positive Airway Pressure
10 Unknown  Stress Reduction Program to Reduce Abnormal Heart Rhythms Treated With Implantable Cardioverter Defibrillators (The RISTA Study)
Condition: Arrhythmias, Cardiac
Intervention: Behavioral: Stress reduction treatment (SRT) program
11 Recruiting Reducing Orthostatic Intolerance With Oral Rehydration in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Patients
Conditions: Chronic Fatigue Syndrome;   Myalgic Encephalomyelitis;   Systemic Exertion Intolerance Disease (SEID);   Postural Tachycardia Syndrome (POTS);   Neurally Mediated Syncope (NMS)
Interventions: Drug: Normal Saline;   Dietary Supplement: Oral Rehydration Solution
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 Clinical Autonomic Disorders: A Training Protocol
Conditions: Chronic Fatigue Syndrome;   Pseudopheochromocytoma;   Healthy Volunteers;   Neurocardiogenic Syncope;   Postural Tachycardia Syndrome
Intervention:
15 Unknown  Modeling Genotype and Other Factors to Enhance the Safety of Coumadin Prescribing
Conditions: Atrial Fibrillation;   Deep Venous Thrombosis;   Heart Valve Replacement;   Pulmonary Embolism
Intervention: Drug: Coumadin
16 Recruiting Prospective Observational Study of the ICD in Sudden Cardiac Death Prevention
Conditions: Heart Failure, Congestive;   Death, Sudden, Cardiac;   Arrhythmia;   Cardiomyopathies
Intervention:
17 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
18 Recruiting Risk of Oxygen During Cardiac Surgery Trial
Condition: Cardiac Surgery
Intervention: Drug: Oxygen
19 Recruiting A Registry to Determine the Clinical and Genetic Risk Factors for Torsade De Pointes
Conditions: Long qt Syndrome;   Torsade de Pointes
Intervention:
20 Unknown  A Novel Treatment For Chronic Posttraumatic Stress Disorder (PTSD) Using Post-Reactivation Propranolol
Condition: Stress Disorders, Post-Traumatic
Intervention: Drug: Propranolol is available in generic form as the Wyeth product under the trade name Inderal.

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