Clinical trials: Amplitude
Primary Exotropia, Strabismus
Accommodative Changes After Medial Rectus Resection Versus Plication in Primary Exotropia
Exotropia is a type of eye misalignment in which one eye turns outward. In some patients, surgery is needed to improve eye alignment and binocular function.
- Conditions
- Primary Exotropia, Strabismus, Strabismus Surgery, Exotropia
- Trial name
- NCT07637253
- Testing
- Lateral Rectus Recession combined with Medial Rectus Resection, Lateral Rectus Recession combined with Medial Rectus Plication
- Where
- Turkey (Türkiye)
- Volunteers
- 85 people
- Sponsor
- Başakşehir Çam & Sakura City Hospital
Sudden Cardiac Death
Predictive Risk Stratification Through T Variability in ICD Patients Without Pacing Indications
The aim of the study is to assess the negative predictive value of the T amplitude variance as a method for risk stratification for patients with an increased risk for SCD.
- Trial name
- Prediction (NCT00560768)
- Testing
- Ovatio VR 6250 or DR6550
- Where
- 30 sites in United States, Canada and 2 more
- Volunteers
- 198 people
- Sponsor
- LivaNova
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
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
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
Regional Blood Flow, Premature Birth
Common Neonatal Procedures Could Affect the aEEG in <30 Weeks of Gestational Age Preterms
Very low birth weight infants has increased dramatically their survival. Survival without neurologic disturbance varies a lot between centers.There is evidence that fluctuations in cerebral blood flow influences the appearance of…
- Conditions
- Regional Blood Flow, Premature Birth, Electroencephalography
- Trial name
- ELECTROPREM (NCT00722033)
- Testing
- 3 protocols of Indomethacin administration
- Where
- Chile
- Volunteers
- 10 people
- Sponsor
- Pontificia Universidad Catolica de Chile
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
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
Sleep
Sleep-wake Patterns in Preterm Infants
The development of sleep-wake behavior is considered to be one of the most important maturation processes occurring in the first year of life.
- Trial name
- NCT04145362
- Where
- Turkey (Türkiye)
- Volunteers
- 20 people
- Sponsor
- Marmara University
Brain Injuries, Congenital Heart Disease
Protecting Brains and Saving Futures - the PBSF Protocol
Background: Multiple neonatal disorders are associated with risks of neurological injury. Thus, management of these infants should involve a coordinated approach to permit early diagnosis with improved clinical care.
- Conditions
- Brain Injuries, Congenital Heart Disease, Newborn Morbidity, Intraventricular Hemorrhage
- Trial name
- PBSF (NCT03786497)
- Where
- 2 sites in Brazil
- Volunteers
- 2,268 people
- Sponsor
- Protecting Brains Saving Futures
Brain Activity, Neurodevelopmental Outcome
Analysis of Correlation of Amplitude-Integrated EEG and Neurodevelopmental Outcome in Preterm Infants
The study included analysis of longitudinal recordings of amplitude-integrated EEG (aEEG) tracings on a weekly basis in preterm infants and evaluation of their neurodevelopmental outcome at the age of three years.
- Trial name
- NCT00728234
- Testing
- aEEG recording
- Where
- Austria
- Volunteers
- 284 people
- Sponsor
- Medical University of Vienna
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
Myopia
Effects of Low Concentration Atropine on Pupillary Size and Accommodative Amplitude
To assess the two-week ocular responses, especially on pupillary size and accommodative amplitude, of nightly application of 0.01% or 0.02% or 0.03% atropine eye drops in children with myopia who were randomized to use of three…
- Trial name
- NCT03699423
- Testing
- 0.01% atropine eye drops, 0.02% atropine eye drops, 0.03% atropine eye drops
- Where
- Vietnam
- Volunteers
- 58 people
- Sponsor
- Hai Yen Eye Care
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
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
Neurophysiologic Maturation
Neurophysiologic Maturation Index for Late Preterm Infants
Late preterm infants contribute to significant neonatal intensive care unit health care resource utilization because of their sheer numbers. Determinants of the length of hospitalization (LOH) in this population are understudied.
- Trial name
- NEMO Project (NCT02156817)
- Testing
- Amplitude integrated electroencephalogram, Cardiorespiratory signal acquisition
- Where
- 3 sites in United States, Canada
- Volunteers
- 26 people
- Sponsor
- Brown University
Gastric Cancer Stage, Lymph Node Metastasis
Association Between Multiple Coagulation-related Factors and Lymph Node Metastasis in Patients With Gastric Cancer: A Retrospective Cohort Study
We initially selected a total of 1128 patients with primary gastric cancer who presented at Shandong Provincial Hospital between January 2018 and October 2022, and retrospectively collected their clinical and pathological data.
- Trial name
- MA (NCT05592925)
- Testing
- coagulation-related factors
- Where
- China
- Volunteers
- 516 people
- Sponsor
- Shandong Provincial Hospital
Traumatic Brain Injury
Amplitude-integrated EEG in Improvement of Seizure Detection and Prognostication in Children With TBI
The goal of this study is to determine whether the addition of aEEG to cEEG in clinical practice does in fact help PICU physicians detect subclinical seizures in this population.
- Trial name
- aEEG (NCT03343964)
- Testing
- Amplitude-integrated electroencephalography
- Where
- Canada
- Volunteers
- 45 people
- Sponsor
- Genevieve Du Pont-Thibodeau
Infant, Newborn, Infant, Low Birth Weight
Cerebral Function Monitoring in Premature Infants
This observational study tests the feasibility of enrolling subjects and obtaining an amplitude-integrated electroencephalogram (aEEG) within the first 72 hours of life, a second aEEG recording between 72-168 hours of life, and…
- Conditions
- Infant, Newborn, Infant, Low Birth Weight, Infant, Small for Gestational Age, Infant, Premature
- Trial name
- NCT00873847
- Where
- 8 sites in United States
- Volunteers
- 102 people
- Sponsor
- NICHD Neonatal Research Network