Clinical trials: Variability
Autonomic Neuropathy
A Comparison Between Pupillometry, Heart Rate Variability and Metaiodobenzylguanidine Scintigraphy for the Diagnosis of Early Diabetic Autonomic Neuropathy in Type 1 Diabetes
This study will examine if one of the following methods: pupillometry, spectral analysis of heart rate variability and metaiodobenzylguanidine scintigraphy, is more capable to detect early diabetic autonomic neuropathy in…
- Trial name
- NCT01822431
- Testing
- metaiodobenzylguanidine scintigraphy
- Where
- Greece
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- AHEPA University Hospital
Lung Injury
Respiratory Variability and Postoperative Complications During Thoracic Lung Resection.
Postoperative respiratory complications (PRC) represent a major public health issue. Majority of PRCs occur once the patient leaves the post-interventional monitoring room.
- Trial name
- RESPIVARIA (NCT06133777)
- Testing
- Respiratory variability monitoring
- Where
- France
- Volunteers
- 60 people
- Sponsor
- GCS Ramsay Santé pour l'Enseignement et la Recherche
Hypotension Drug-Induced, General Anesthesia Using Endotracheal Intubation
Alveolar Recruitment Maneuver-Induced Hypotension: A Dynamic Consequence and Intraoperative Indicator of Fluid Responsiveness
This study investigates whether two simple bedside tests - the Passive Leg Raising (PLR) test and the Pleth Variability Index (PVI) - can predict a drop in blood pressure that sometimes occurs during a lung-opening procedure…
- Conditions
- Hypotension Drug-Induced, General Anesthesia Using Endotracheal Intubation, Atelectasis, Fluid Responsiveness
- Trial name
- NCT07766967
- Testing
- Alveolar Recruitment Maneuver (ARM), Passive Leg Raising (PLR) Test
- Where
- Turkey (Türkiye)
- Volunteers
- 70 people
- Sponsor
- University of Health Sciences Balikesir Hospital Eduation and Research
Heart Failure, Arrhythmia
The HF-HRV Registry
The Registry will evaluate how HRV Monitor diagnostics change after cardiac resynchronization therapy in patients with heart failure.
- Trial name
- NCT00236236
- Testing
- Cardiac Resynchronization Therapy
- Volunteers
- 1,400 people
- Sponsor
- Boston Scientific Corporation
Myocardial Infarction
Acute Effects of HIIT vs. MICT on HRV
Heart rate variability (HRV) is impaired in patients after myocardial infarction. Most studies so far have proved chronic beneficial effects of different types of exercise on HRV parameters.
- Trial name
- MW2acute (NCT06437145)
- Testing
- Type of Exercise
- Where
- Slovenia
- Volunteers
- 20 people
- Sponsor
- University Medical Centre Ljubljana
Evaluate the Physiological Stability of NIS4 Biomarker Between the Fed and Fasting State in Patients With the Target Condition (NAFLD)
Evaluation of the Physiological Stability Variability and Robustness of NIS4
Patients at higher risk of progression to cirrhosis and clinical deleterious outcomes are those that have a high grade of necroinflammation together with significant fibrosis.
- Trial name
- NCT06159257
- Testing
- Blood test
- Where
- France
- Volunteers
- 50 people
- Sponsor
- CerbaXpert
Endothelial Dysfunction
Effect of Different Methodologies on Variability of Brachial Artery Flow Mediated Dilation
Flow mediated dilation (FMD) of the brachial artery has been widely used as a non-invasive measure of endothelial function. FMD independently predicts future cardiovascular events and can be readily influenced by pharmacological…
- Trial name
- NCT01899937
- Where
- 4 sites in Italy, Netherlands
- Volunteers
- 15,000 people, healthy volunteers welcome
- Sponsor
- Maastricht University Medical Center
Glaucoma
Variability in Perimetry Study
Improved Assessment of Visual Field Change is a trial aimed at investigating mechanisms of visual field testing variability. The investigators have found using larger stimulus size substantially lowers short-term variability.
- Trial name
- VIPII (NCT01051739)
- Testing
- Comparison of four visual field testing strategies
- Where
- United States
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Type 1 Diabetes
Artificial Pancreas Technology to Reduce Glycemic Variability and Improve Cardiovascular Health in Type 1 Diabetes
This study will examine the potential cardiovascular effect(s) of artificial pancreas (AP) technology in patients with type 1 diabetes.
- Trial name
- WBH002 (NCT05653518)
- Testing
- Tandem t:slim X2 with Control-IQ Technology, Sensor augmented pump (SAP) therapy
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- University of Virginia
PreDiabetes, Heart Rate Variability (HRV)
Effects of Walking in Greenspace and the Built Environment in Adults With Prediabetes: A Randomized Crossover Trial
The goal of this randomized crossover trial is to compare the differences in psychological and physiological effects of walking in two different outdoor environments (urban/suburban commercial environments vs.
- Conditions
- PreDiabetes, Heart Rate Variability (HRV), Stress and Anxiety, Stress Biomarkers
- Trial name
- NCT06365723
- Testing
- Nature-based Walking, Built-environment/Commercial Walking
- Where
- 3 sites in United States
- Volunteers
- 216 people
- Sponsor
- University of Minnesota
Rheumatoid Arthritis (RA
Effects of Chronic Non-invasive Vagus Nerve Stimulation in an Asplenic Individual Suffering From Rheumatoid Arthritis
The goal of this clinical trial is to learn if chronic self-administrated non-invasive vagus nerve stimulation works to improves the disease activity in a single asplenic patient suffering from rheumatoid arthritis.
- Trial name
- NCT07646470
- Testing
- Trans-auricular vagus nerve stimulation
- Where
- Canada
- Volunteers
- 1 people
- Sponsor
- Osteoflow Health Clinic
Healthy
Neural Adaptations to Metronome-Paced Strength Training
The aim of the study is to investigate the effects of incorporating variability within Resistance Training (RT) methods on the neural adaptations along the corticospinal tract and on neuromuscular function.
- Trial name
- NCT06532786
- Testing
- Fractal Paced, Isochronous Paced, Self Paced
- Where
- Portugal
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Egas Moniz - Cooperativa de Ensino Superior, CRL
Intraventricular Hemorrhage, Autoregulation
Physiological Disturbances Associated With Neonatal Intraventricular Hemorrhage
Annually, almost 5,000 extremely low birth weight (9 ounces to about 2 lbs) infants born in the US survive with severe bleeding in the brain (intraventricular hemorrhage); this devastating complication of prematurity is…
- Trial name
- PhysDis (NCT00665769)
- Testing
- Hypercapnia, Normocapnia
- Where
- United States
- Volunteers
- 103 people
- Sponsor
- Baylor College of Medicine
Traumatic Brain Injury, Subarachnoid Hemorrhage
Cerebral Perfusion Pressure (CPP) Management Information Feedback and Nursing
The aim of the initial proposal was to evaluate, in the context of optimal medical management, the impact of a bedside system of cerebral perfusion pressure (CPP) information feedback on nursing moment-to-moment management of…
- Trial name
- NCT00194441
- Testing
- Bedside display of cerebral perfusion pressure information
- Where
- United States
- Volunteers
- 260 people
- Sponsor
- University of Washington
Type 2 Diabetes, Overweight and Obese Adults
Effects of D-Chiro-Inositol Combined with Metformin on Insulin Resistance in People with Overweight or Obesity and T2DM
This study evaluates the efficacy of D-Chiro-Inositol (DCI) as an add-on therapy to metformin in improving insulin resistance, measured by the HOMA index, in people with overweight or obesity and type 2 diabetes mellitus (T2DM).
- Trial name
- DIACHIRO (NCT06860841)
- Testing
- D-Chiro-Inositol Combined with Metformin
- Where
- Italy
- Volunteers
- 16 people
- Sponsor
- Campus Bio-Medico University
Depression, Anxiety Disorders
Physiological Response to Self-compassion Versus Relaxation
Compassion-focused imagery (CFI, in which one imagines receiving or giving compassion) can be an effective emotion-regulation technique but some individuals respond as if it is a threat.
- Trial name
- NCT04647318
- Testing
- Compassion focused imagery, relaxation imagery and control task
- Where
- Colombia
- Volunteers
- 25 people
- Sponsor
- University of Los Andes, Columbia
Obesity
Evaluation of Heart Rate Variability and Endothelial Function Three Months After Bariatric Surgery
Was performed a longitudinal, study with twenty patients recruited for the bariatric surgery group and 20 for clinical treatment.
- Trial name
- NCT03911479
- Testing
- Bariatric Surgery
- Volunteers
- 40 people
- Sponsor
- Rio de Janeiro State University
Peripheral Arterial Diseases, Intermittent Claudication
Lower Extremity Peripheral Arterial Disease and Exercise Ischemia
Lower extremity peripheral arterial disease (LEPAD) is a highly prevalent chronic disease. Cardiovascular mortality of LEPAD patients at five years ranges between 18 to 30%.
- Trial name
- CLASH (NCT02041169)
- Testing
- Subsequent walking performance
- Where
- France
- Volunteers
- 23 people
- Sponsor
- Rennes University Hospital
Osteoporosis
Cohort Study on Associations Between Purinergic Receptor SNPs and Osteoporosis Risk
Background: Osteoporosis is a high-prevalence disease with a strong genetic component. Nucleotides, including ATP (adenosine 5'-triphosphate) and its purinergic receptors, play a role in bone physiology.
- Trial name
- ATPBone (NCT00697983)
- Where
- Netherlands
- Volunteers
- 1,000 people
- Sponsor
- Maastricht University Medical Center
Cardiac Event Risk
Heart Rate Variability (HRV) to Evaluate Surgical Risk on Patients on Beta Blockers
Beta blockers have been shown to decrease the risk of intraoperative cardiac events in patients at high cardiac risk. However, they have also been associated with side effects (for instance, stroke.) The role of beta blockers in…
- Trial name
- NCT01330654
- Testing
- metoprolol
- Where
- United States
- Sponsor
- University of California, San Francisco
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