Clinical trials: Syncope
Syncope
The Diagnostic Performance of Tilt Test in Athletes
In the present study the investigators evaluate the sensitivity and specificity of passive tilt test in athletes, as well as their haemodynamic responses and autonomic nervous system activity during head-up tilt.
- Trial name
- NCT02316860
- Testing
- Passive tilt test
- Where
- Greece
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Aristotle University Of Thessaloniki
Vitamin D
Correlation Between Vitamin D and Symptoms Severity of Autonomic Nervous Mediated Syncope Child and it 's RAAS
children ; autonomic nervous mediated syncope； vitamin D ; symptom score ; renin-angiotensin-aldosterone-system
- Trial name
- NCT04844957
- Testing
- Vitamin D, Full automatic chemiluminescence measuring instrument
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Kongyujie
Autonomic Nervous System Diseases
PET Scan in Patients With Neurocardiologic Disorders
This study is designed to use PET scans in order to measure activity of the sympathetic nervous system. The sympathetic nervous system is the portion of the nervous system that maintains a normal supply of blood and fuel to…
- Trial name
- NCT00001418
- Where
- United States
- Volunteers
- 335 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Syncope
Multi-Site Near Infrared Spectroscopy (NIRS) Monitoring of Children During Tilt Table Testing
PURPOSE OF THE STUDY This study will explore the use of multi-site NIRS monitoring during tilt table testing, combining somatic and cerebral saturations data with hemodynamic data to establish the non-invasive assessment of…
- Trial name
- NIRS & Tilt (NCT00659464)
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Medical College of Wisconsin
Vasovagal Syncope, Postural Tachycardia Syndrome
Mechanisms of Vasovagal Syncope
Vasovagal Syncope (simple postural faint) is the most common cause of acute loss of consciousness. Postural tachycardia syndrome(POTS) is the most common chronic form of postural lightheadedness.
- Trial name
- NCT01791816
- Testing
- Phenylephrine, L-Ng-monomethyl Arginine (L-NMMA)
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- New York Medical College
Vagal Syncope
Validation of a Non Invasive Blood Marker of SIDS and Vagal Disorders
Context The investigators recently demonstrated a highly significant increase in muscarinic receptor density in the myocardium of infants deceased from sudden infant death syndrome (SIDS) compared to those of infants deceased…
- Trial name
- NCT01358461
- Testing
- Blood sampling, ECG-Holter 24 h tape and sino-carotid stimulation test
- Where
- France
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University Hospital, Strasbourg, France
Syncope
Evaluation of Chronic Orthostatic Intolerance
This study will conduct tests with patients with primary chronic orthostatic intolerance (COI) to learn more about this disorder of the autonomic nervous system.
- Trial name
- NCT00069693
- Where
- 3 sites in United States, Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Syncope, Vasovagal
Predictive Factors for Hypotensive Bradycardic Events During Arthroscopic Shoulder Surgery
Patients's demographics and perioperative factors affect the occurrence of hypotensive bradycardic events in the patients undergoing arthroscopic shoulder surgery in the sitting position under interscalene block.
- Trial name
- NCT01926561
- Testing
- Interscalene brachial plexus block
- Where
- South Korea
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Daegu Catholic University Medical Center
Dysautonomia
MRI to Assess the Effects of Dysautonomia and Chronic Nausea on Brain Transmitters
The purpose of this research study is to better understand what causes dysautonomia and how this affects blood pressure and pulse. Dysautonomia is a condition of the autonomic nervous system.
- Trial name
- NCT01692561
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Chronic Fatigue Syndrome, Myalgic Encephalomyelitis
Reducing Orthostatic Intolerance With Oral Rehydration in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Patients
We and others have shown that many younger patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) have orthostatic intolerance (OI), i.e., they can't tolerate prolonged standing.
- Conditions
- Chronic Fatigue Syndrome, Myalgic Encephalomyelitis, Systemic Exertion Intolerance Disease (SEID), Postural Tachycardia Syndrome (POTS)
- Trial name
- NCT02854683
- Testing
- Normal Saline, Oral Rehydration Solution
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- New York Medical College
Presyncope, Syncope
Oral Water Hydration to Prevent Post-Vaccination Presyncope
This is a randomized controlled open-label trial. During the study, adolescents and young adults scheduled to receive at least one intra-muscular (IM) vaccine will receive either oral water hydration in addition to standard care…
- Trial name
- NCT02353390
- Testing
- Oral Water Hydration
- Where
- 2 sites in United States
- Volunteers
- 1,820 people, healthy volunteers welcome
- Sponsor
- Duke University
Cardiac Arrhythmia, Syncope
Comparative Study of the Sternal Patch System With a Conventional Holter Recorder
This study will be a comparison of two externally worn recording systems for documentation of cardiac arrhythmias in symptomatic patients or patients at risk for arrhythmia.
- Trial name
- NCT04241692
- Testing
- CarnationTM Ambulatory Monitoring Sternal ECG Patch System, Conventional 24-Hour 7 Lead Holter Monitor Recorder
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Children's National Research Institute
Syncope, Vasovagal
Cardioneuroablation for Reflex Syncope and Exercise Capacity
Cardioneuroablation (CNA) is a new promising method to treat reflex syncope which is due to vagally-induced functional sinus arrest or atrio-ventricular block (AVB).
- Trial name
- Roman3 (NCT06440291)
- Testing
- Cardioneuroablation
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Centre of Postgraduate Medical Education
Vasovagal Syncope, Postural Tachycardia Syndrome
Hypnosis in Autonomic Function
This study will investigate the relationship between susceptibility to hypnosis and regulation of the autonomic nervous system (nerves that control involuntary body functions, such as heart rate and sweating).
- Conditions
- Vasovagal Syncope, Postural Tachycardia Syndrome, Hypnosis
- Trial name
- NCT00061009
- Where
- United States
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Syncope, Vasovagal
Presyncope (Syncope) Prevention Study
This study was a prospective, randomized clinical trial that was conducted in adolescents (10 through 14 years of age) receiving at least one recommended intramuscularly administered vaccine to evaluate the efficacy and…
- Trial name
- PS^2 (NCT04772755)
- Testing
- Buzzy® and Electronic Game
- Where
- 2 sites in United States
- Volunteers
- 338 people, healthy volunteers welcome
- Sponsor
- Duke University