Clinical trials: Syncope
Syncope, Vasovagal, Pain Intensity
Safety/Efficacy Study of Local Anesthetic Prior to Femoral Artery Sheath Removal
This randomized controlled trial will examine the impact of local anesthetic on the frequency of vasovagal reactions and the patients perception of pain during femoral arterial sheath removal after percutaneous coronary…
- Trial name
- NCT00465439
- Testing
- Subcutaneous Lidocaine 2% (Xylocaine) without epinephrine
- Where
- Canada
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Hamilton Health Sciences Corporation
Asthma, Syncope
Vagal Nerve Stimulation Assessed by the Diving Reflex: An Investigation Into Mechanisms of Asthma Death
The investigators' hypothesis is that dysregulation of autonomic function, as revealed during a simulated dive reflex, may result in an attenuation of the heart rate response to a greater degree in asthmatics who collapse during…
- Trial name
- NCT02083029
- Testing
- Simulated dive reflex
- Where
- United Kingdom
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Hull University Teaching Hospitals NHS Trust
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
Healthy Amateur Divers
Effects of Voluntary Neck Extension on Cerebral Blood Flow, in Breath-hold Divers Ending an Apnoea of Two Minutes or More.
The aim of this study is to demonstrate the effect of the voluntary neck extension in the occurrence of an increase in the pulsatility index of the right internal carotid artery in the amateur diver, realizing an apnea of two…
- Trial name
- APNECK (NCT03210857)
- Testing
- apnea performing
- Where
- France
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Nantes University Hospital
Atrial Fibrillation, Syncope
LUX-Dx Insertable Cardiac Monitor Remote Programming and Performance Study
The LUX-Dx PERFORM Study had two primary objects which were (1) to characterize, in a general patient population, the utilization of the remote programming feature of the Boston Scientific (BSC) Insertable Cardiac Monitor (ICM)…
- Conditions
- Atrial Fibrillation, Syncope, Cryptogenic Stroke
- Trial name
- LUX-Dx PERFORM (NCT04732728)
- Where
- 24 sites in United States
- Volunteers
- 727 people, healthy volunteers welcome
- Sponsor
- Boston Scientific Corporation
Vasovagal Syncope, Smoke Inhalation
Relation Between Vasovagal Tendency and Smoking Among University Students
Almost everyone is aware these days is aware about the risk of smoking. Still many people start this habit specially in early life and during college year.
- Trial name
- NCT02949804
- Testing
- Comparison between two groups
- Where
- Jordan
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Jordan Collaborating Cardiology Group
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
Vasovagal Reaction
Prevention of Vasovagal Reactions in First-time Blood Donors Using a Combined PSYchological and Physiological Approach
The prevention of vasovagal reactions (VVR) occurring during or after donation is a major issue for the French Blood Establishment (EFS), firstly to guarantee the safety of donors but also to retain them, as this reaction is one…
- Trial name
- PREDONPSY (NCT06014346)
- Testing
- Psychological strategy, Physiological strategy
- Where
- France
- Volunteers
- 5,320 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Vasovagal Syncope (VVS), Presyncope
A Warning Red Flag Classification System to Predict Risk of Vasovagal Event During Office Hysteroscopy
The goal of this pilot cross sectional study is to identify participants at risk of vasovagal reaction/syncope(VVR/VVS) during office hysteroscopy.
- Trial name
- FLAG-VS (NCT07030218)
- Testing
- Office hysteroscopy
- Where
- India
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Tanvir Hospital
Circulatory Collapse, Circulatory Failure
Suspension Syndrome
Suspension syndrome refers to a potentially life-threatening condition that can occur in unconscious persons after prolonged suspension in a harness.
- Conditions
- Circulatory Collapse, Circulatory Failure, Syncope, Vasovagal, Neurally-Mediated, Orthostatic Hypotension
- Trial name
- NCT02726776
- Testing
- Suspension in a harness, Climbing
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Institute of Mountain Emergency Medicine
Healthy
Effect of Dietary Salt Supplemantation in Vasovagal Syncope Prophylaxis: A Clinical Trial
Syncope is a syndrome consisting of a relatively short period of temporary and self-limited loss of consciousness caused by transient diminution of blood flow to the brain (most often the result of systemic hypotension).
- Trial name
- NCT00465946
- Testing
- Salt Supplementation
- Where
- Brazil
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Hospital de Clinicas de Porto Alegre
Drug Resistant Epilepsy, Drop Seizures
Novel Helmet Design in Patients With Seizures
This is a two-part study that aims to determine the reliability and safety of the use of the Hövding inflatable helmet in seizures, as evidenced by the deployment of the helmet during seizures, and qualitative patient reporting.
- Conditions
- Drug Resistant Epilepsy, Drop Seizures, Generalized Tonic Clonic Seizure, Complex Partial Seizure
- Trial name
- NCT03443388
- Testing
- Hövding inflatable helmet
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Michael A. Gelfand, MD, PhD
Hyperthermia, Weather; Heat
Mitigating Heat-induced Physiological Strain and Discomfort in Older Adults Via Lower Limb Immersion and Neck Cooling
The incidence and severity of hot weather and extreme heat events (heat waves) is increasing. As such, there is an urgent need to develop heat-alleviation strategies that can provide targeted protection for older adults who are…
- Conditions
- Hyperthermia, Weather; Heat, Heat Stress, Heat Syncope
- Trial name
- NCT05601713
- Testing
- No cooling (control), Lower limb immersion, Lower limb immersion + neck cooling
- Where
- Canada
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University of Ottawa
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
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)
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
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
Cardiovascular Diseases, Cardiovascular Diseases Risk
Cor360: Clinician-Facing Broad-Spectrum Cardiac Phenotyping and Risk Assessment Using COR® Wearable ECG to Inform Outcomes-Oriented Care Pathways
Cor360 is an observational study evaluating whether extended wearable electrocardiogram (ECG) data can support broad-spectrum cardiac phenotyping and risk assessment beyond conventional single-purpose ambulatory rhythm…
- Conditions
- Cardiovascular Diseases, Cardiovascular Diseases Risk, Cardiac Conduction System Disease, Bundle/Fascicular Abnormalities
- Trial name
- Cor360 (NCT07775976)
- Testing
- COR Wearable ECG Monitoring, Cor360 Clinician-Facing Decision-Aid Reporting
- Where
- 2 sites in United States
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Peerbridge Health, Inc
Diabetic Retinopathy, Macular Degeneration
Advancing Understanding of Transportation Options
This Stage II randomized, controlled, longitudinal trial seeks to assess the acceptability, feasibility, and effects of a driving decision aid use among geriatric patients and providers.
- Conditions
- Diabetic Retinopathy, Macular Degeneration, Glaucoma, Retinitis Pigmentosa
- Trial name
- AUTO (NCT04141891)
- Testing
- Driving Decision Aid, Older Drivers Website
- Where
- 3 sites in United States
- Volunteers
- 529 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
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)