Clinical trials: Pressure Flow Study
Coronary Artery Disease, Coronary Disease
Sensor-equipped Ultrathin Pressure Microcatheter Versus Pressure Wire for Physiological Measurements
TruePhysio pressure microcatheter is a novel device for evaluating the functional significance of coronary stenosis, and its safety and efficacy on the measurement of hyperemic index have been validated in the previous SUPREME…
- Conditions
- Coronary Artery Disease, Coronary Disease, Myocardial Ischemia
- Trial name
- SUPREME II (NCT05417763)
- Testing
- Randomized physiological measurements by the two systems
- Where
- 11 sites in China
- Volunteers
- 487 people
- Sponsor
- Insight Lifetech Co., Ltd.
Open Angle Glaucoma, Normal Tension Glaucoma
Study on Ocular Blood Flow and the Orbital Cerebrospinal Fluid Pressure in Glaucoma
Ocular blood flow has been consistently demonstrated to be altered in glaucoma patients when compared to otherwise healthy individuals.
- Trial name
- NCT01802463
- Where
- Belgium
- Volunteers
- 197 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Cardiovascular Diseases, Endothelial Dysfunction
Effect of Polyphenol Extract on Cardiovascular Health Markers: a 4 Way Randomised Crossover Study
Endothelial dysfunction is an early predictor of cardiovascular events in at-risk patients. It is characterized by impaired endothelium-dependent dilation and is primarily caused by reduced nitric oxide bioavailability secondary…
- Conditions
- Cardiovascular Diseases, Endothelial Dysfunction, Blood Pressure
- Trial name
- Activ Acute (NCT05220059)
- Testing
- Polyphenol extract
- Where
- United Kingdom
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Positive-Pressure Respiration, Intrinsic, Critically Ill Patients
A New Monitor to Measure Dermal Blood Flow in Critically Ill Patients: a Preliminary Study
Background: Conditions of reduced perfusion are characterized by redistribution of blood flow away from the skin to more vital organs.
- Trial name
- MDBF-CIP (NCT01794468)
- Testing
- Dermal blood flow measurements
- Where
- Israel
- Volunteers
- 11 people
- Sponsor
- Rabin Medical Center
Healthy Volunteers
Examining the Effects of Nasal High Flow Oxygen Therapy Compared to Non-invasive Ventilation in Health Volunteers
Respiratory failure is characterized by low levels of oxygen and high levels of carbon dioxide in the blood which causes difficulty breathing.
- Trial name
- NCT03902639
- Testing
- Phase 1 and 2, Phase 3
- Where
- Canada
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Unity Health Toronto
Coronary Artery Disease, Coronary Stenosis
Measuring Blood Flow in Heart Vessels With a New Fibre Optic Sensor
The purpose of this investigation is to see if the newly developed "iKOs™ microcatheter" can safely and accurately measure flow and pressure within the heart arteries of 10 patients undergoing angiogram and pressure wire tests.
- Conditions
- Coronary Artery Disease, Coronary Stenosis, Coronary Microvascular Disease
- Trial name
- NCT05346458
- Testing
- Intra coronary rapid-exchange iKOs microcatheter intervention
- Where
- United Kingdom
- Volunteers
- 10 people
- Sponsor
- Queen Mary University of London
Mechanical Ventilation Complication, Neurological Disorder
The Cerebral-Respiratory Interaction in Controlled Mechanically Ventilated Neurosurgical Patients. (The CeRes-CMV Study)
The impact of mechanical ventilation on intracranial perfusion is still not completely clarified. It is often assumed that raising airway pressure will invariably elevate the intracranial pressure, but this is not always the…
- Conditions
- Mechanical Ventilation Complication, Neurological Disorder, Lung Injury
- Trial name
- CeRes-CMV (NCT05363085)
- Testing
- Mechanically ventilated neurosurgical patients
- Volunteers
- 30 people
- Sponsor
- Uppsala University
COPD, Ventilator Lung
Best End-Expiratory and Driving-pressure for Individualized Flow Controlled Ventilation in Patients With COPD
Patients with chronic obstructive pulmonary disease (COPD) have a significantly increased risk of postoperative pulmonary complications (PPC).
- Conditions
- COPD, Ventilator Lung, Anesthesia
- Trial name
- NCT05812365
- Where
- Germany
- Volunteers
- 10 people
- Sponsor
- Universitätsklinikum Hamburg-Eppendorf
Obstructive Sleep Apnea
Clinical Efficacy of High-flow Nasal Cannula Oxygen Therapy in Patients With Obstructive Sleep Apnea
Patients meeting the criteria of obstructive sleep apnea were included, and all patients signed informed consent, which met the requirements of the ethics Committee of our unit. All subjects were hospitalized patients.
- Trial name
- NCT05549245
- Testing
- high-flow nasal cannula oxygen therapy,, CPAP
- Where
- China
- Volunteers
- 194 people
- Sponsor
- Qilu Hospital of Shandong University
Disorder Related to Renal Transplantation
The Effects of Omega-3 Fatty Acids in Renal Transplantation
Omega-3 fatty acids are provided through dietary intake of fish and seafood. Several dietary supplements containing omega-3 fatty acids are also commercially available.
- Trial name
- ORENTRA (NCT01744067)
- Testing
- Omega-3 fatty acids
- Where
- 2 sites in Norway
- Volunteers
- 132 people
- Sponsor
- Oslo University Hospital
Neonatal Respiratory Distress Syndrome
Flow-cycled Ventilation in Preterm Infants
This short pilot study is to assess the tolerance of preterm infants, born below 32 weeks gestation with respiratory distress syndrome, to flow-cycle ventilation, and see if infants require less overall pressure from the…
- Trial name
- FLIPI (NCT02522455)
- Testing
- Flow-cycle ventilation, Time-cycle ventilation mode
- Where
- United Kingdom
- Volunteers
- 6 people
- Sponsor
- Manchester University NHS Foundation Trust
Pressure Ulcers, Tissue Injury
The Analysis of Skin Temperature by Long Wave Infrared Imaging to Determine Its Effectiveness as a Predictor of Tissue Injury
Long-wave infrared imaging can be used to identify skin temperature changes associated with underlying tissue changes. We want to determine if the use of Long Wave infrared Imaging is as effective as the Braden Score in…
- Trial name
- NCT00664235
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Trillennium Medical Imaging, Inc.
Acute Respiratory Distress Syndrome
High Flow Nasal Canula Oxygen Helps Preoxygenate ARDS Patients
Tracheal intubation in the ICU is associated with significant complications and morbidity. Desaturation is among the most frequent and hazardous complication, occurring in almost one out of four intubations, that may in some…
- Trial name
- HIGHER (NCT02214576)
- Where
- France
- Volunteers
- 50 people
- Sponsor
- Hôpital Louis Mourier
Laparoscopic Surgery
The Impact of Anesthesia and Positioning on Cerebral Blood Flow and Pressure in Patients Undergoing Laparoscopic Surgery
The aim of this observational study was to understand the effect of ReverseTrendelenburg position, Trendelenburg position on intracranial pressure and carotid blood flow in patients undergoing laparoscopic surgery.
- Trial name
- NCT06669689
- Testing
- operating position, pneumoperitoneum
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Xiaguang Duan
Prone Positioning, Covid19
Use of Combined Prone Positioning and High-Flow Nasal Cannula, and Non-invasive Positive Pressure Ventilation to Prevent Intubation in COVID-19 Infection
This research aims to understand if prone positioning combined with high-flow nasal cannula (HFNC) or non-invasive positive pressure ventilation (NIPPV) safely reduce the rate of intubation in acute hypoxemic and/or hypercapnic…
- Conditions
- Prone Positioning, Covid19, Hypoxemic Respiratory Failure, ARDS
- Trial name
- NCT04694638
- Testing
- Body position change
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- Mayo Clinic
Noninvasive Positive Pressure Ventilation, High Flow Nasal Cannula
A Multicentered Study on Efficiency of Noninvasive Ventilation Procedures
Noninvasive ventilation (NIV) is an alternative form of ventilatory support in critical care encompassing different modes of ventilation such as continuous positive airway pressure (CPAP), bilevel positive airway pressure (BiPAP)…
- Conditions
- Noninvasive Positive Pressure Ventilation, High Flow Nasal Cannula, Failure, Respiratory
- Trial name
- SAFE-NIV (NCT03066934)
- Testing
- noninvasive ventilation respiratory support
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 352 people
- Sponsor
- Akdeniz University
Type 2 Diabetes
Study Looking at Cardiovascular Effects of Exenatide, Its Blood Pressure Lowering Effect and Its Mechanisms
Exenatide is a new drug which lowers blood sugar (glucose) levels for people with type 2 diabetes. It has significant advantages over other treatments such as insulin as it causes weight loss in a group of people that is…
- Trial name
- NCT01046721
- Testing
- Exenatide, Saline
- Where
- United Kingdom
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- University of Nottingham
Mild-Moderate Obstructive Sleep Disordered Breathing
Non-Inferiority Trial of Acute HFT Versus nCPAP
Order randomized crossover non-inferiority study evaluating the acute efficacy of High Flow Therapy (HFT) as compared to nasal Continuous Positive Airway Pressure therapy (CPAP) in the management of apnea / hypopnea index (AHI).
- Trial name
- NCT01860560
- Testing
- High-Flow Therapy, Continuous Positive Airway Pressure
- Where
- United States
- Sponsor
- Vapotherm, Inc.
Infant, Premature, Diseases, Respiratory Distress Syndrome
Functional Residual Capacity During Different Levels of High-flow in Preterm Infants
Although there is a widespread use of HighFlow therapy around the world, there is still uncertainty about the most appropriate initial HighFlow level after nasal continuous positive airway pressure therapy.
- Trial name
- FunkFlow (NCT05237622)
- Testing
- High Flow
- Where
- Switzerland
- Volunteers
- 20 people
- Sponsor
- University of Zurich
Abnormalities, Hyperlipidemia
Study of the Effects of Blackcurrant Extract and Omega-3 Fats on the Health of the Heart and Blood Vessels
Background: Heart disease is the leading cause of death in the United States. Eating fruits and vegetables with chemicals called flavonoids may protect against heart disease and improve blood flow to the heart.
- Conditions
- Abnormalities, Hyperlipidemia, Cardiovascular Disease, Arteriosclerosis
- Trial name
- NCT02019680
- Volunteers
- healthy volunteers welcome
- Sponsor
- National Institute of Nursing Research (NINR)