121 studies found for:    Open Studies | "Tachycardia"
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Rank Status Study
21 Unknown  Anti-arrhythmic Medication v. MRI-Merge Ablation in the Treatment of Ventricular Tachycardia
Condition: Ventricular Tachycardia
Interventions: Procedure: MRI guided VT ablation;   Drug: Increased dose of amiodarone
22 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
23 Recruiting Substrate Targeted Ablation Using the FlexAbility™ Ablation Catheter System for the Reduction of Ventricular Tachycardia
Condition: Monomorphic Ventricular Tachycardia
Intervention: Device: Cardiac catheter ablation with ICD/CRT-D
24 Recruiting Effect of Medical Treatment and Prognosis of Postural Orthostatic Tachycardia Syndrome (POTS)
Condition: Postural Orthostatic Tachycardia Syndrome
Interventions: Drug: Propranolol;   Drug: Bisoprolol;   Drug: Propranolol+pyridostigmine;   Drug: Bisoprolol+pyridostgmine
25 Not yet recruiting Ventricular Tachycardia in Ischemic Cardiomyopathy; a Combined Endo-Epicardial Ablation Within the First Procedure Versus a Stepwise Approach
Conditions: Ventricular Tachycardia;   Ischemic Cardiomyopathy
Interventions: Other: combined endo/epicardial approach;   Other: stepwise approach
26 Unknown  The Renin-Aldosterone Axis in Postural Tachycardia Syndrome
Condition: Postural Tachycardia Syndrome
Intervention: Drug: Angiotensin II
27 Recruiting Safety and Efficacy of Paramedic Treatment of Regular Supraventricular Tachycardia
Condition: Supraventricular Tachycardia
Interventions: Other: Paramedic;   Other: Standard care
28 Recruiting Assessment of Vascular Endothelial Function in Postural Tachycardia Syndrome
Condition: Postural Tachycardia Syndrome
Intervention: Device: Blood Pressure and Blood Flow
29 Recruiting Circulating Biomarkers and Ventricular Tachyarrhythmia
Conditions: Cardiomyopathy;   Ventricular Tachycardia;   Ventricular Fibrillation
Intervention:
30 Recruiting Ultra-high Density Mapping With Multielectrode Catheter vs Conventional Point by Point Mapping for Ventricular Tachycardia Substrate Ablation
Condition: Ventricular Tachycardia
Interventions: Device: Ablation guided by conventional mapping.;   Device: Ablation guided by ultra-high density mapping with multielectrode catheter.
31 Unknown  Using Non-Fluoroscopic Imaging Devices to Decrease Radiation Exposure During Ablation of Supraventricular Tachycardia
Condition: Supraventricular Tachycardia
Intervention: Device: Intracardiac echocardiography and 3D navigational system
32 Recruiting Adrenocorticotropic Hormone Stimulation in Postural Orthostatic Tachycardia Syndrome (POTS)
Condition: Postural Tachycardia Syndrome
Intervention: Drug: Cosyntropin administration
33 Recruiting Assessment of Antibodies and Inflammatory Markers in Postural Tachycardia Syndrome
Condition: Postural Orthostatic Tachycardia Syndrome
Interventions: Other: History;   Other: Physical;   Other: blood draw;   Behavioral: Questionnaires
34 Recruiting Utility of ICD Electrograms During Ventricular Tachycardia Ablation
Condition: Sustained Monomorphic Ventricular Tachycardia
Interventions: Procedure: Conventional RF catheter ablation;   Procedure: Investigational RF Catheter Ablation using ICD-EG information
35 Recruiting Iron Sucrose in Adolescents With Iron Deficiency and Postural Orthostatic Tachycardia Syndrome (POTS)
Condition: Postural Orthostatic Tachycardia Syndrome
Interventions: Drug: Iron infusion;   Drug: Normal saline infusion
36 Not yet recruiting Cardiac Denervation Surgery for Prevention of Ventricular Tacharrhythmias
Conditions: Sudden Cardiac Death;   Ventricular Tachycardia;   Ventricular Fibrillation;   Cardiomyopathy
Interventions: Procedure: Bilateral cervicothoracic sympathectomy plux maximum medical therapy;   Drug: Maximum medical therapy
37 Recruiting Modafinil and Cognitive Function in POTS
Condition: Postural Tachycardia Syndrome
Interventions: Drug: Placebo;   Drug: Modafinil;   Drug: Propranolol
38 Recruiting Using Ripple Mapping to Guide Substrate Ablation of Scar Related Ventricular Tachycardia.
Conditions: Monomorphic Ventricular Tachycardia;   Myocardial Infarction;   Dilated Cardiomyopathy
Interventions: Device: Ripple Mapping guided VT ablation;   Device: Conventional VT ablation
39 Not yet recruiting Efficacy and Safety of Epicardial VT Ablation Using Contact Force Irrigated Tip Catheter - Pilot Sutdy
Condition: Tachycardia, Ventricular
Intervention: Procedure: Epicardial VT ablation
40 Recruiting A Study of Caffeine on Cardiac Arrhythmias
Conditions: Supraventricular Tachycardia (SVT);   Atrial Fibrillation
Interventions: Drug: Caffeine;   Other: Placebo

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Indicates status has not been verified in more than two years