Clinical trials: Amplitude
Glaucoma, Open-Angle, Circadian Rhythm
Circadian Variations in Ocular Blood Flow in Glaucomatous and Normal Eyes
After focusing many years only on intraocular pressure (IOP) as the primary risk factor, recently the impact of ocular blood flow is getting more consideration for the pathophysiology of glaucoma.
- Conditions
- Glaucoma, Open-Angle, Circadian Rhythm, Intraocular Pressure, Regional Blood Flow
- Trial name
- NCT00707226
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Sudden Cardiac Death, Sudden Cardiac Arrest
Low QRS Voltages in Young Healthy Individuals and Athletes
There is some limited evidence that reduced size of electrical complexes/traces of the heart on the electrocardiogram (ECG) may be associated with scarring in the heart muscle, which may predispose to serious life-threatening…
- Conditions
- Sudden Cardiac Death, Sudden Cardiac Arrest, Sudden Cardiac Death Due to Cardiac Arrhythmia, Arrhythmogenic Right Ventricular Cardiomyopathy
- Trial name
- NCT05799833
- Testing
- Cardiovascular magnetic resonance scan - 3T scanner (Siemens Vida)
- Where
- United Kingdom
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Healthy
Effects of Kava on the Body's Elimination of Caffeine and Dextromethorphan
This study will examine how kava-a widely used herbal remedy-may affect the body's elimination of other medicines. Many people take kava to reduce anxiety or cause sedation.
- Trial name
- NCT00009542
- Testing
- kava (Piper methysticum)
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Apnea of Newborn, Preterm Labor
Analyze Changes in Respiratory Rate When Using the Scare Respirator
Pilot study of 10 preterm, who are going to be randomly placed to 3 phases : 2 hour of basal observation of respiratory rate, heart rate, saturation, NIPS and aEEG recording, 2 hours with a 20cycles/minute with "scare…
- Trial name
- RESPSUS (NCT04584814)
- Testing
- without any device, scare ventilator at 20, scare ventilator at 40
- Where
- Chile
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Pontificia Universidad Catolica de Chile
Children Under General Anesthesia
Study on Changes of Pulse Oximeter Plethysmographic Amplitude Induced by Respiration in Pediatric Patients
The purpose of this study is to evaluate the variations of respiratory changes in pulse oximeter plethysmographic amplitude (delta POP) according to different contact forces between finger and sensor of pulse oximeter.
- Trial name
- NCT02940938
- Testing
- Applying pulse oximeter sensor
- Where
- South Korea
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Gender Role Disorder, Male to Female Type
Gender-specific aEEGs and Outcome in Preterms
Background and objectives: Male sex is a risk factor for poor neurodevelopmental outcome following preterm birth. The investigators aimed to investigate gender-related differences in amplitude-integrated electroencephalography…
- Trial name
- NCT01562236
- Where
- Austria
- Volunteers
- 148 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Neuro-Ophthalmology
Safety and Normative Data With Neos™
The goal of this clinical study is to collect standard data for the medical device neos™. neos™ is a system that shows images and measures the resulting eye movements and pupil size. Collecting standard data involves three steps.
- Trial name
- neos-SNOW (NCT07258212)
- Where
- 3 sites in Switzerland
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- machineMD AG
Critical Illness Polyneuromyopathy
Reference Values for Compound Muscle Action Potential Amplitude Obtained by Direct Muscle Stimulation
Direct muscle stimulation (DMS) method is one of the electrodiagnostic methods used in the diagnosis of critical illness myopathy (CIM) and critical illness neuropathy (CIN).
- Trial name
- NCT04227548
- Testing
- needle electromyography
- Where
- Turkey (Türkiye)
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Adana City Training and Research Hospital
Altitude Hypoxia, Neonatal Encephalopathy
Neonatal Electrical Activity at Different Altitude Levels
In this study, the objective is to compare neonatal cerebral electrical activity within 3 days after birth across different altitude areas using amplitude-integrated electroencephalography (aEEG), and establish reference value…
- Trial name
- NCT05966714
- Testing
- aEEG
- Where
- 2 sites in China
- Volunteers
- 531 people, healthy volunteers welcome
- Sponsor
- Children's Hospital of Fudan University
Auditory Brainstem Response
Comparative Effects of Two Anesthetic Techniques on Auditory Brain Response in Children
This will be a prospective, blinded, cross-over study to compare the effects of two anesthetic techniques on the interpretability of auditory brainstem response testing in children.
- Trial name
- NCT02830815
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Apneas of Prematurity
The Effect of Stimulating Substances on Brain Activity of Preterm Infants
Introduction: Methylxanthines and doxapram have been widely used for the treatment of apneas of prematurity. Both substances have effects on the central nervous system.
- Trial name
- NCT01344317
- Where
- 2 sites in Austria
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Vaccine Adverse Reaction, COVID-19
Immunization of 7 Different Vaccines Against SARS-COV-2 Across 4 Countries.
Background: Scarce information exists in relation to the comparison of seroconversion and adverse events following immunization (AEFI) with different SARS-COV2 vaccines.
- Conditions
- Vaccine Adverse Reaction, COVID-19, Vaccine Reaction
- Trial name
- NCT05228912
- Testing
- COVID-19 Vaccines
- Where
- Mexico
- Volunteers
- 1,870 people, healthy volunteers welcome
- Sponsor
- Hospital Clinica Nova
Neoplasms
Detecting Tumor Specific Amplitude-modulated Frequencies of Cancer Patients
Studies have shown that tumor specific amplitude-modulated frequencies of radiofrequency electromagnetic fields that is associated with biofeedback upon exposure to in cancer patients.
- Trial name
- NCT03037840
- Testing
- Low intensity amplitude-modulated RF EMFs
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Southern Medical University, China