Clinical trials: Heart Rate Fast
Healthy Participants
Renal Salt Handling in Postural Tachycardia Syndrome Following Dietary Dopa Administration
The purpose of this study is to learn how plants can play a role in gain/loss of sodium in the urine and in the regulation of blood pressure.
- Trial name
- NCT01064739
- Testing
- Fava beans, Fixed Sodium Diet
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Postural Tachycardia Syndrome
Dopamine in Orthostatic Tolerance
One goal of this study is to determine whether people with different amounts of dopamine-beta-hydroxylase (DBH) have different responses to events that affect blood pressure and heart rate.
- Trial name
- NCT00748228
- Testing
- dietary sodium
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Postural Tachycardia Syndrome
Local Vasoconstriction in Postural Tachycardia Syndrome
The investigators study will determine how often blood flow regulation abnormalities and abnormalities of sympathetic regulation produced by nitric oxide, angiotensin-II, and oxidative stress occur in POTS and the mechanism(s) of…
- Trial name
- NCT01210430
- Testing
- Losartan, Ascorbic Acid (Vitamin C), Normal Saline
- Where
- United States
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- New York Medical College
Postural Orthostatic Tachycardia Syndrome, Postural Tachycardia Syndrome
Autoimmune Basis for Postural Tachycardia Syndrome
The purpose of this study is to see if some people with postural tachycardia syndrome (POTS) have higher levels of immune proteins (autoantibodies) directed against receptors of the autonomic nervous system, and if these…
- Conditions
- Postural Orthostatic Tachycardia Syndrome, Postural Tachycardia Syndrome, Tachycardia, Arrhythmias, Cardiac
- Trial name
- NCT02725060
- Testing
- phenylephrine, isoproterenol, 25 micro-Ci of radiation
- Where
- 2 sites in United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Cognitive Function 1, Social, Competence
Heart Rate Variability and Cognitive Load on Image-Based Virtual Reality Instructional Design in Otolaryngology
This study aims to compare heart rate variation, cognitive load, and learning outcomes of novel image-based virtual reality with traditional video in learning for otolaryngology.
- Conditions
- Cognitive Function 1, Social, Competence, Heart Rate Fast, Learning, Spatial
- Trial name
- NCT03501641
- Testing
- image-based virtual reality learning, video-based learning
- Where
- Taiwan
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Chang Gung Memorial Hospital
Postural Tachycardia Syndrome
POTS Adrenergic Ab (CIHR Aims #1&2)
Objective: In this pilot study, we will test the hypothesis that patients with POTS (age 18-60 years) will have a higher percentage of functional antibodies to adrenergic receptors compared with control subjects without POTS.
- Trial name
- NCT02673996
- Testing
- Phenylephrine, Isoproterenol
- Where
- Canada
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- University of Calgary
Arrhythmia, Atrial Fibrillation
Esophageal 3D Mapping System for Cardiac Arrhythmias
The aim of the study is to develop and validate a novel esophageal mapping system to improve the diagnostics of cardiac arrhythmias.
- Conditions
- Arrhythmia, Atrial Fibrillation, Atrial Flutter, Atrial Tachycardia
- Trial name
- esoECG-3D (NCT03365440)
- Testing
- esoECG-3D catheter
- Where
- Switzerland
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
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
Postural Tachycardia Syndrome
Adrenocorticotropic Hormone Stimulation in Postural Orthostatic Tachycardia Syndrome (POTS)
This study is to determine different chemical levels in the blood during a low salt diet. This study will compare normal volunteers to those with Postural Tachycardia Syndrome (POTS)
- Trial name
- NCT01764711
- Testing
- Cosyntropin administration
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Postural Tachycardia Syndrome
Aldosterone & Sodium Regulation in Postural Tachycardia Syndrome - Screening
The purpose of the study is to determine whether patients meet criteria for Postural Tachycardia Syndrome (or not) and have reduced blood volume (or not).
- Trial name
- NCT01783288
- Testing
- Autonomic Function Testing, Posture Study, Measurement of Total Blood Volume
- Where
- United States
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Ventricular Tachycardia
MANAGE-VT Registry - MANAGEment of Ventricular Tachycardia Outcomes Registry
Data collection registry for patients with ventricular tachycardia to help physicians give better care for patients clinically and procedurally.
- Trial name
- MANAGE-VT (NCT06455488)
- Testing
- Ventricular Tachycardia Ablation, ICD Implant, Antiarrhythmic drug
- Where
- United States
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- CorVita Science Foundation
Postural Tachycardia Syndrome, Orthostatic Intolerance
Peripheral Dopamine in Postural Tachycardia Syndrome
The purpose of the proposed research is to determine how changes in kidney dopamine (DA) activity influence urinary sodium excretion.
- Trial name
- NCT00685919
- Testing
- Carbidopa
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Postural Orthostatic Tachycardia Syndrome (POTS), Healthy
POTS-FLOW: Interplay Between Gut Hormones and Autonomic Postprandial Blood Flow Regulation in Patients With POTS
This study will describe the interplay between the gut hormones GIP and CCK and their regulation of blood flow to the large vessels in patients with Postural Orthostatic Tachycardia Syndrome (POTS) and GIP, CCK and GLP-1 in…
- Trial name
- GA22 (NCT07019519)
- Testing
- GIPR antagonist, GLP-1R antagonist, CCK agonist
- Where
- Denmark
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Postural Tachycardia Syndrome
Periaqueductal Gray-vagus Nerve Interface Malfunction Explain the Natural History With Its Numerous Co-morbidities?
This study is being conducted to see how people with Postural tachycardia syndrome (POTS) make sense of the things they see. The information may help doctors to learn more about how the different parts of people's brains…
- Trial name
- NCT05618054
- Testing
- Looming task
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Virginia Commonwealth University
Supraventricular Tachycardia
Troponin Leaks in Emergency Department Patients Presenting With Supraventricular Tachycardia (SVT)
The goal of this study is twofold. First the investigators would like to determine the trajectory of troponin leaks; if it can be shown that the participants who have only minimal elevations of their repeat troponin universally…
- Trial name
- NCT02810561
- Testing
- No Intervention
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Corewell Health South
Postural Tachycardia Syndrome (POTS)
Splanchnic Venous Capacitance in Postural Tachycardia Syndrome
Postural tachycardia syndrome (POTS) affects ≈3 million young people, characterized by chronic presyncopal symptoms characterized by dizziness, lightheadedness, and orthostatic tachycardia that occur while standing.
- Trial name
- NCT05375968
- Testing
- Measurement of Splanchnic venous capacitance(SVC)done at Baseline and after 90 min of 75 g glucose in Healthy Controls POTS patients, Measurement of Splanchnic venous capacitance(SVC)done at Baseline and after 90 min of 75 g glucose in Healthy Controls, Compare change is SVC and SMA flow due to GIP antagonist GIP(3-30)NH2
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Postural Tachycardia Syndrome
Autonomic Determinants of POTS - Pilot1
Postural tachycardia syndrome (POTS) is a relatively common condition affecting mostly otherwise healthy young women. It is the cause of significant disability and an impairment in quality of life.
- Trial name
- NCT04050410
- Testing
- Moxonidine
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Fatigue, Tachycardia
Effect of Caffeine on Heart Function
The primary objective of this study is to assess the effect of an energy drink on ventricular repolarization as measured by the interval between the cardiac Q wave and the cardiac T wave (QT interval)obtained from the body…
- Trial name
- NCT02401776
- Testing
- Monster Energy Drink, Coffee
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Texas at Austin
Cerebral Oxygenation
Cerebral Oxygenation and Awareness During VT Ablation
It is aimed to examine the effect of the decrease in blood pressure that occurs during the ventricular tachycardia ablation process on cerebral oxygenation and awareness.
- Trial name
- NCT05097170
- Testing
- NIRS during ventricular tachycardia ablation
- Where
- Turkey (Türkiye)
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Hacettepe University
Arrhythmias, Cardiac
Biospecimen Repository for Cardiac Arrhythmias at the Cleveland Clinic
Biorepository of blood and or tissue samples from patients presenting with cardiac arrhythmia syndromes.
- Trial name
- NCT00921986
- Where
- United States
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic